Engine Cooling System Ford Econoline E250

SPECIFICATIONS

MATERIAL SPECIFICATIONS

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

Note. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. Refer to COOLING SYSTEM FLUSHING . Failure to follow these instructions may damage the cooling system or engine.

The cooling system components include the following

1. Block heater
2. Coolant pump
3. Cooling fan blade
4. Cooling fan clutch
5. Cooling fan shroud
6. Cylinder Head Temperature (CHT) sensor
7. Degas bottle
8. Pressure relief cap
9. Radiator
10. Radiator draincock
11. Thermostat

Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level in the degas bottle.

When adding engine coolant, use a 50/50 mixture of engine coolant and distilled water. A coolant concentration of 50% will provide freeze point protection down to -37°C (-34°F).

To maintain the integrity of the coolant and the cooling system

1. Add Motorcraft Premium Gold Engine Coolant or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Do not mix coolant types.
2. do not add/mix different coolant types. Mixing coolants may degrade the coolant's corrosion protection.
3. Do not add alcohol, methanol, brine or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
4. Do not mix with recycled coolant. Use of such coolants may harm the engine and cooling system components. Do not mix coolant types.

Coolant Flow Diagram, 4.6L (2V) without Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 1

Coolant Flow Diagram, 4.6L (2V) with Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 2

Coolant Flow Diagram, 5.4L (2V) without Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 3

Coolant Flow Diagram, 5.4L (2V) with Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 4

Coolant Flow Diagram, 6.8L (2V) without Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 5

Coolant Flow Diagram, 6.8L (2V) with Auxiliary Heat

Note. Black arrows indicate hot, white arrows indicate cold.

Scheme 6

SPECIAL TOOLS CHART Coolant/Battery Refractometer ROB75240 or equivalent D-Gas Adapter 300-OTC014-R1068 or equivalent Radiator Tester STN12270 or equivalent UView® Combustion Leak Tester UVU560000-R Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware or equivalent scan tool

Scheme 7

Scheme 8

Scheme 9

Scheme 10

MATERIAL SPECIFICATIONS

Principles of Operation

Engine coolant flows primarily from the engine to the radiator circuit and back to the coolant pump. Coolant is sent from the coolant pump through the engine block and cylinder heads. A separate circuit from the engine also feeds the heater core with coolant. The coolant pump, operated by engine rotation through a sprocket which is driven by the timing chain, circulates the coolant. The coolant thermostat is a control valve actuated by coolant temperature. When the thermostat is closed, coolant flow bypasses the radiator circuit and returns to the coolant pump. When the thermostat is opened, coolant flows through the radiator circuit to transfer engine-generated heat to the outside air.

The degas bottle removes air from the cooling system, reducing hot spots. It also allows for coolant expansion and system pressurization, replenishes coolant to the cooling system and serves as the location for service fill.

The cooling fan draws air through the radiator to help cool the system coolant as it passes through the radiator.

The thermostat monitor is a function of the PCM and is designed to verify correct thermostat operation. The monitor executes once per drive cycle and has a monitor run duration of 300-800 seconds. If a malfunction occurs, DTC P0125 or P0128 is set, and the Malfunction Indicator Lamp (MIL) is illuminated.

For engine specific information, refer to ENGINE COOLING in the Description and Operation portion of this information.

Inspection and Verification

Note. The engine cooling system is filled with Motorcraft® Premium Gold Engine Coolant. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. Refer to COOLING SYSTEM FLUSHING . Failure to follow these instructions may damage the engine or cooling system.

Note. The engine cooling system is filled with Motorcraft Premium Gold Engine Coolant. Do not mix coolant types. Mixing coolant types degrades the corrosion protection of Motorcraft Premium Gold Engine Coolant. Failure to follow these instructions may damage the engine or cooling system.

Note. Vehicles have the pressure relief cap on the degas bottle and no radiator cap.

1. Verify the customer concern.
2. Visually check the engine coolant level at the degas bottle when the system is cold.
3. Make sure the pressure relief cap is installed correctly.
4. Record any cooling system DTCs retrieved. Refer to the «PCM DTC CHART»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__pcm-dtc-chart) in this information for DTC descriptions.
5. If the system coolant is filled correctly and no DTCs associated with fail-safe cooling are retrieved, verify the customer concern by operating the engine to duplicate the condition.
6. Visually inspect for obvious signs of any mechanical or electrical concerns damage. VISUAL INSPECTION CHART Mechanical Electrical Leaks or weeps at: Hoses Tubes Clamp joints Quick connect couplings (if equipped) Gaskets O-rings Thermostat housing Radiator Pressure relief cap Coolant pump Heater core (wet floor or coolant odor in vehicle) Oil cooler (if equipped) Degas bottle Heated PCV (if equipped) Cylinder block core plugs (if equipped) Cylinder head core plugs (if equipped) Block heater (if equipped) Inoperative or damaged: Cylinder Head Temperature (CHT) sensor (if equipped) Intake Air Temperature (IAT) sensor (if equipped) Vehicle Speed Sensor (VSS) Cracked or damaged: Hoses Tubes Hose clamps Thermostat housing Radiator Pressure relief cap Cooling fan Fan clutch Coolant pump Degas bottle Oil cooler (if equipped) Cylinder block core plugs (if equipped) Cylinder head core plugs (if equipped) Block heater (if equipped) Restricted airflow through the A/C condenser/radiator Drive belt loose, worn or installed incorrectly Broken or weak drive belt tensioner Excessive white or light gray exhaust smoke (may have burnt coolant odor) Coolant in engine oil Engine oil in coolant Coolant in automatic transmission fluid (if equipped) Automatic transmission fluid (if equipped) in coolant
7. If the inspection reveals an obvious concern that can be readily identified, repair it as necessary. Test the system for normal operation.
8. Inspect the coolant condition. Inspect the coolant color. If Motorcraft® Premium Gold Engine Coolant has a clear or pale yellow color, this indicates higher water content than required. Test the engine coolant freezing point range with the Coolant/Battery Refractometer. The freezing point should be in the range -50°C to -26°C (-58°F to -15°F). If the vehicle is driven in cold climates less than -37°C (-34°F), it may be necessary to increase the coolant concentration to get adequate freeze protection. Recommended coolant concentration is 50/50 engine coolant to distilled water. A pale green color indicates incorrect coolant (green in color) has been added to the system. Use of incorrect (green in color) coolant degrades the corrosion protection of Motorcraft® Premium Gold Engine Coolant. If incorrect coolant has been added, flush the system and refill with the correct mixture of Motorcraft® Premium Gold Engine Coolant and distilled water. Refer to «COOLING SYSTEM FLUSHING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-flushing) . A red/orange color indicates incorrect coolant (red/orange in color) may have been added to the system. Use of incorrect (red/orange in color) coolant degrades the corrosion protection of Motorcraft® Premium Gold Engine Coolant. Flush the system and refill with the correct mixture of Motorcraft® Premium Gold Engine Coolant and distilled water. Refer to «COOLING SYSTEM FLUSHING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-flushing) . NOTE: If Cooling System Stop Leak Pellets are used, darkening of the Motorcraft® Premium Gold Engine Coolant from yellow to golden tan may occur. Dark brown could indicate a commercially available stop leak may have been used and could result in loss of coolant flow to critical parts of the engine. Flush the system and refill with the correct mixture of Motorcraft® Premium Gold Engine Coolant and distilled water. Refer to «COOLING SYSTEM FLUSHING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-flushing) . A light or reddish brown color indicates that rust may be present in the cooling system. Flush the system and refill with the correct mixture of Motorcraft® Premium Gold Engine Coolant and distilled water. Refer to «COOLING SYSTEM FLUSHING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-flushing) . An iridescent sheen on top of the coolant could indicate a trace of oil is entering the system. For engine diagnosis, refer to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . A milky brown color may indicate that engine oil is entering the cooling system. Pressure test the cooling system. Refer to «COMPONENT TESTS»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) . If engine oil in suspected, the cause of the leak may be internal to the engine. For engine diagnosis, refer to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . A red colored sheen on top of the coolant may indicate that transmission fluid is entering the cooling system. The cause may be a leaky radiator. Pressure test the cooling system. Refer to the «COMPONENT TESTS»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) . If the engine coolant appearance is acceptable, test the engine coolant freezing point range with the Coolant/Battery Refractometer. The freezing point should be in the range -50°C to -26°C (-58°F to -15°F). If the vehicle is driven in cold climates less than -37°C (-34°F), it may be necessary to increase the coolant concentration to get adequate freeze protection. Recommended coolant concentration is 50/50 engine coolant to distilled water. Maximum coolant concentration is 60/40 for cold weather areas. Minimum coolant concentration is 40/60 for warm weather areas. Adjust coolant range and level if necessary: If coolant is low, add specified coolant mixture only. If the engine coolant tests too weak, remove some of the engine coolant and add undiluted engine coolant until the readings are within acceptable levels. If the engine coolant tests strong, remove some of the engine coolant and add distilled water until the readings are within acceptable levels.
9. If an obvious cause for an observed or reported concern is found, correct the cause and test the system for normal operation before proceeding to the next step.
10. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
11. If the scan tool does not communicate with the VCM: check the VCM connection to the vehicle. check the scan tool connection to the VCM. refer to «MODULE COMMUNICATIONS NETWORK»(/ford/econoline-e250/2012-2013/remont/communication-devices/#module-communications-network) , No Power To The Scan Tool, to diagnose no power to the scan tool.
12. If the scan tool does not communicate with the vehicle: verify the ignition key is in the ON position. verify the scan tool operation with a known good vehicle. refer to «MODULE COMMUNICATIONS NETWORK»(/ford/econoline-e250/2012-2013/remont/communication-devices/#module-communications-network) to diagnose no response from the PCM.
13. Carry out the network test. If the scan tool responds with no communication for one or more modules, refer to «MODULE COMMUNICATIONS NETWORK»(/ford/econoline-e250/2012-2013/remont/communication-devices/#module-communications-network) . If the network test passes, retrieve and record continuous memory DTCs.
14. Clear the continuous DTCs and carry out the self-test diagnostics for the PCM.
15. If the DTCs recovered are related to the concern, go to the «PCM DTC CHART»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__pcm-dtc-chart) . For all other PCM DTCs, refer to «ELECTRONIC ENGINE CONTROLS»(/ford/econoline-e250/2012-2013/remont/removal-installation/#engine-controls-electronic-engine-controls) .
16. If no DTCs related to the concern are retrieved, GO to «SYMPTOM CHART»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__symptom-chart) .

PCM DTC Chart

PCM DTC CHART

Symptom Chart

SYMPTOM CHART

Normal Operation

The engine cooling system is a closed system providing for coolant expansion and contraction and also changes in pressure as coolant warms and cools with engine operation. Various gaskets, seals, hoses and clamps contain coolant within the cooling system and keep other fluids and contaminants from entering the cooling system.

Coolant loss can be attributed to either external or internal leaks anywhere within the cooling system.

For engine specific information, refer to ENGINE COOLING in the Description and Operation portion of this information.

This pinpoint test is intended to diagnose the following

1. Coolant hoses or tubes
2. Hose clamps
3. Thermostat O-ring seal or gasket
4. Coolant pump O-ring seal or gasket
5. Thermostat housing
6. Radiator
7. Transmission fluid cooler (in radiator)
8. Pressure relief cap
9. Coolant pump leaking from weep hole
10. Heater core
11. Engine gaskets
12. Oil cooler (if equipped)
13. Degas bottle
14. Heated PCV (if equipped)
15. Cylinder block core plugs (if equipped)
16. Cylinder head core plugs (if equipped)
17. Block heater (if equipped)

PINPOINT TEST A: LOSS OF COOLANT

1. A1 CARRY OUT «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) Carry out the «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) procedure . Were any concerns found? Yes : REPAIR as needed. TEST the system for normal operation. No : GO to A2.
2. A2 CHECK THE ENGINE COOLANT LEVEL NOTE: Allow the engine to cool before checking the engine coolant level. Ignition OFF. Visually inspect the engine coolant level at the degas bottle. Is the engine coolant level within specifications? Yes : GO to A3. No : ADJUST the engine coolant level as necessary. GO to A3.
3. A3 PRESSURE TEST THE ENGINE COOLING SYSTEM Pressure test the engine cooling system. Refer to , «COOLING SYSTEM PRESSURE TEST»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-pressure-test) . Does the engine cooling system leak externally? Yes : REPAIR or INSTALL new components. TEST the system for normal operation. No : GO to A4.
4. A4 CHECK THE ENGINE COOLANT FOR AN INTERNAL LEAK Inspect the engine coolant in the degas bottle for signs of engine oil or transmission fluid. Is engine oil or transmission fluid evident in the coolant? Yes : If engine oil is evident, GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) for engine diagnosis. If transmission fluid is evident, INSTALL a new radiator. REPAIR the transmission as necessary. Refer to the «AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-4r70ew-4r75ew) or «AUTOMATIC TRANSAXLE/TRANSMISSION - TORQSHIFT(R)»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-5r110w-torqshiftr) for the procedure. TEST the system for normal operation. No : GO to A5.
5. A5 CHECK THE ENGINE OIL AND TRANSMISSION FLUID FOR COOLANT Remove the oil level indicators from the engine and the transmission. Is coolant evident in the oil or transmission fluid? Yes : If coolant is in the engine oil, GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . If coolant is in the transmission fluid, INSTALL a new radiator. REPAIR the transmission as necessary. Refer to the «AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-4r70ew-4r75ew) or «AUTOMATIC TRANSAXLE/TRANSMISSION - TORQSHIFT(R)»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-5r110w-torqshiftr) for the procedure. No : GO to A6.
6. A6 CHECK THE COOLING SYSTEM FOR COMBUSTION GASES NOTE: Use UView® Combustion Leak Tester part number UVU560000-R or equivalent. Using a cooling system combustion gas leak tester, following the instructions supplied with the tester, check the coolant for combustion gases. Are combustion gases present? Yes : GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) for engine diagnosis. No : The cooling system is operational.

The engine cooling system maintains engine temperatures during operation. Correct coolant flow through the engine, radiator and remainder of cooling system passages and components is essential to maintaining a correct engine temperature.

Engine coolant flows primarily from the engine to the radiator circuit and back to the coolant pump. Coolant is sent from the coolant pump through the engine block and cylinder heads. A separate circuit from the engine also feeds the heater core with coolant. The coolant pump, operated by engine rotation through a sprocket driven by the timing chain, circulates the coolant. The coolant thermostat is a control valve actuated by coolant temperature. When the thermostat is closed, coolant flow bypasses the radiator circuit and returns to the coolant pump. When the thermostat is opened, coolant is allowed to flow through the radiator circuit in order to transfer engine-generated heat to the outside air.

Engine overheating generally occurs when there is a disruption in the ability to control either coolant flow at the correct rate, the inability to transfer heat from the engine through the coolant (including low coolant), or an inability to transfer engine generated heat to the outside air through the radiator.

For engine specific information, refer to ENGINE COOLING in the Description and Operation portion of this information.

1. DTC P0217 (Engine Coolant Overtemperature Condition) - Indicates an engine overheat condition was sensed by the Cylinder Head Temperature (CHT) sensor.
2. DTC P1285 (Cylinder Head Overtemperature Condition) - Indicates an engine overheat condition was sensed by the CHT sensor
3. DTC P1299 (Cylinder Head Overtemperature Protection Active) - Indicates an engine overheat condition was detected by the CHT sensor. A failure mode effects management strategy called fail-safe cooling was activated to cool the engine.

This pinpoint test is intended to diagnose the following

1. Low coolant level
2. External engine coolant leak
3. Airlock in system
4. Pressure relief cap installation
5. Restricted airflow through the A/C condenser or radiator
6. Internal engine coolant leak
7. Coolant condition/concentration
8. Accessory drive components
9. Non-OEM engine enhancement components
10. Cooling fan blade
11. Cooling fan clutch
12. Engine Coolant Temperature (ECT) gauge
13. CHT sensor
14. Heater core
15. Coolant pump
16. Coolant flow restriction

PINPOINT TEST B: THE ENGINE OVERHEATS

1. B1 CARRY OUT «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) Carry out the «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) procedure . Were any concerns found? Yes : REPAIR as needed. TEST the system for normal operation. No : GO to B2.
2. B2 CHECK FOR DTCs Check for DTC P0217, P1285 or P1299. Is DTC P0217, P1285 or P1299 present? Yes : GO to B3. No : Actual engine overheating has not been verified. CHECK the ECT gauge operation. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(/ford/econoline-e250/2012-2013/remont/gauges-instrument-panels/#information-center-instrumentation-message-center-and-warning-chimes) . If any other PCM DTCs are retrieved, REFER to «ELECTRONIC ENGINE CONTROLS»(/ford/econoline-e250/2012-2013/remont/removal-installation/#engine-controls-electronic-engine-controls) .
3. B3 CHECK FOR AN AIRFLOW OBSTRUCTION Check the radiator or A/C condenser or for an obstruction such as leaves or cardboard. Is an obstruction present? Yes : REMOVE the obstruction. TEST the system for normal operation. No : GO to B4.
4. B4 CHECK THE ENGINE COOLANT LEVEL NOTE: Allow the engine to cool before checking the coolant level. Ignition OFF. Visually check the engine coolant level in the degas bottle. Is the engine coolant level within specification? Yes : GO to B5. No : ADJUST the engine coolant level as necessary. GO to B5.
5. B5 PRESSURE TEST THE ENGINE COOLING SYSTEM Pressure test the engine cooling system. Refer to , «COOLING SYSTEM PRESSURE TEST»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-pressure-test) . Does the engine cooling system leak externally? Yes : REPAIR or INSTALL new components. TEST the system for normal operation. No : GO to B6.
6. B6 CHECK THE ENGINE COOLANT FOR AN INTERNAL LEAK Inspect the engine coolant in the degas bottle for signs of engine oil or transmission fluid. Is engine oil or transmission fluid evident in the coolant? Yes : If engine oil is evident, GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . If transmission fluid is evident, INSTALL a new radiator. REPAIR the transmission as necessary. Refer to the «AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-4r70ew-4r75ew) or «AUTOMATIC TRANSAXLE/TRANSMISSION - TORQSHIFT(R)»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-5r110w-torqshiftr) for the procedure. TEST the system for normal operation. No : GO to B7.
7. B7 CHECK THE ENGINE OIL AND TRANSMISSION FLUID FOR COOLANT Remove the oil level indicators from the engine and the transmission. Is coolant evident in the oil or transmission fluid? Yes : If coolant is in the engine oil, GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . If coolant is in the transmission fluid, INSTALL a new radiator. REPAIR the transmission as necessary. Refer to the «AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-4r70ew-4r75ew) or «AUTOMATIC TRANSAXLE/TRANSMISSION - TORQSHIFT(R)»(/ford/econoline-e250/2012-2013/remont/automatic-trans/#automatic-transmission-5r110w-torqshiftr) for the procedure. No : GO to B8.
8. B8 CHECK THE COOLING SYSTEM FOR COMBUSTION GASES NOTE: Use UView® Combustion Leak Tester part number UVU560000-R or equivalent. Using a cooling system combustion gas leak tester, following the instructions supplied with the tester, check the coolant for combustion gases. Are combustion gases present? Yes : GO to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) . No : GO to B9.
9. B9 CHECK COOLANT CONDITION Check the coolant for dirt, rust or contamination and check the coolant concentration. Is the coolant condition OK? Yes : GO to B10. No : FLUSH the engine cooling system. REFER to «COOLING SYSTEM FLUSHING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-flushing) . TEST the system for normal operation.
10. B10 CHECK THE COOLING FAN OPERATION Ignition OFF. Carry out the cooling fan clutch component tests. Refer to «COMPONENT TESTS»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) . Is the cooling fan operation OK? Yes : GO to B11. No : INSTALL a new fan clutch. TEST the system for normal operation.
11. B11 CHECK THE COOLANT PUMP OPERATION Start the engine. Allow the engine to run for 10 minutes. Place the climate control function selector in the MAX HEAT position. Feel the heater outlet hose. Is the heater outlet hose hot? Yes : GO to B12. No : INSTALL a new coolant pump. TEST the system for normal operation.
12. B12 CHECK THE THERMOSTAT OPERATION Start the engine. Allow the engine to run for 10 minutes. Feel the upper radiator hose. Is the upper radiator hose hot? Yes : CHECK the ECT gauge operation. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(/ford/econoline-e250/2012-2013/remont/gauges-instrument-panels/#information-center-instrumentation-message-center-and-warning-chimes) . No : GO to B13.
13. B13 VISUALLY INSPECT THE THERMOSTAT Carry out the «THERMOSTAT VISUAL INSPECTION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__thermostat-visual-inspection) in the Component Tests portion of this information. Is the thermostat damaged? Yes : INSTALL a new thermostat. TEST the system for normal operation. No : INSTALL a new thermostat. TEST the system for normal operation. If the engine still overheats, INSTALL a new radiator. TEST the system for normal operation.

The engine cooling system maintains engine temperatures during operation. Correct coolant flow through the engine, radiator and remainder of cooling system passages and components is essential to maintaining a correct engine temperature.

Engine coolant flows primarily from the engine to the radiator circuit and back to the coolant pump. From the coolant pump, coolant is sent through the engine block and cylinder heads. A separate circuit from the engine also feeds the heater core with coolant. The coolant pump, operated by engine rotation through a sprocket which is driven by the timing chain, circulates the coolant. The coolant thermostat is a control valve actuated by coolant temperature. When the thermostat is closed, coolant flow bypasses the radiator circuit and returns to the coolant pump. When the thermostat is opened, coolant flows through the radiator circuit to transfer engine generated heat to the outside air.

Concerns of engine inability to reach normal operating temperature typically occur when the rate of coolant flow through some coolant circuits (radiator, heater core) is more than expected given the conditions, or the fan clutch is always engaged. Heat is not allowed to build in the engine because a heat exchanger is removing too much heat, including the radiator, heater core and oil cooler. In addition, perceived concerns that the engine does not reach normal operating temperature can be related to a low coolant level or trapped air which does not allow for hot coolant to be available at the heater core, an inoperative climate control system, or for concerns perceived or related to an incorrect engine temperature gauge indication.

For engine specific information, refer to ENGINE COOLING in the Description and Operation portion of this information.

1. DTC P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control
2. DTC P0126 Insufficient Coolant Temperature For Stable Operation
3. DTC P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

This pinpoint test is intended to diagnose the following

1. Low coolant level
2. Thermostat
3. Engine Coolant Temperature (ECT) gauge
4. Engine cooling fan

PINPOINT TEST C: THE ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE

1. C1 CARRY OUT «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) Carry out the «INSPECTION AND VERIFICATION»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__inspection-and-verification) procedure . Were any concerns found? Yes : REPAIR as needed. TEST the system for normal operation. No : GO to C2.
2. C2 CHECK FOR DTC P0125, P0126 or P0128 Check for DTC P0125 or P0128. Is DTC P0125 or P0128 present? Yes : GO to C3. No : The cooling system is operational. If an inoperative ECT gauge is suspected, CHECK the ECT gauge operation. REFER to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(/ford/econoline-e250/2012-2013/remont/gauges-instrument-panels/#information-center-instrumentation-message-center-and-warning-chimes) . If an inoperative climate control system is suspected, CHECK the climate control system operation. REFER to «CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS»(/ford/econoline-e250/2012-2013/remont/automatic-hvac-system/#hvac-climate-control-system-general-information-and-diagnostics) . If any other PCM DTCs are retrieved, REFER to «ELECTRONIC ENGINE CONTROLS»(/ford/econoline-e250/2012-2013/remont/removal-installation/#engine-controls-electronic-engine-controls) .
3. C3 CHECK THE COOLING FAN OPERATION Carry out the cooling fan clutch component tests. Refer to «COMPONENT TESTS»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) . Is the cooling fan clutch OK? Yes : GO to C4. No : INSTALL a new cooling fan clutch. TEST the system for normal operation.
4. C4 CHECK THE COOLANT LEVEL NOTE: Allow the engine to cool before checking the coolant level. Visually check the engine coolant level in the degas bottle. Is the engine coolant level within specification? Yes : INSTALL a new thermostat. TEST the system for normal operation. No : GO to «PINPOINT TEST A»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__pinpoint-test-a-loss-of-coolant) to diagnose a coolant leak.

Cooling System Pressure Test

Scheme 11

1. Turn the engine OFF.
2. Check the engine coolant level. Adjust the coolant level as necessary.
3. Attach the D-Gas Adapter to the degas bottle nipple and overflow hose. Install the Radiator Tester to the quick-connect fitting of the D-Gas Adapter.
4. Slowly press the plunger of the pressure test pump until the pressure gauge reading stops increasing and note the highest pressure reading obtained. If the pressure reading exceeds the maximum cap pressure listed in the specifications table, install a new pressure relief cap.
5. If the system does not hold pressure, remove the pressure relief cap and wash in clean water to dislodge all the foreign material from the gasket. Check the sealing surface in the filler neck of the degas bottle for nicks or cuts. Install the pressure relief cap.
6. Pressurize the engine cooling system as described in Step 4 . Observe the gauge reading for approximately 2 minutes. Pressure should not drop during this time. If the pressure drops within this time, inspect for leaks and repair as necessary.
7. If no leaks are found and the pressure drops, the pressure relief cap may be leaking. Install a new pressure relief cap and retest the system.
8. If no leaks are found after a new pressure relief cap is installed, and the pressure drops, the leak may be internal to the radiator transmission cooler. Inspect the coolant for transmission fluid and the transmission fluid for coolant. Repair as necessary.
9. If there is no contamination of the coolant or transmission fluid, the leak may be internal to the engine. Inspect the coolant for engine oil and the engine oil for coolant. Refer to «ENGINE SYSTEM - GENERAL INFORMATION»(/ford/econoline-e250/2012-2013/remont/mechanical/#engine-system-general-information-e-series) to diagnose the engine.
10. Release the system pressure by loosening the pressure relief cap. Check the coolant level and adjust as necessary.

Thermostat

A new thermostat should be installed only after the following tests and checks have been carried out

1. Pinpoint Test A, B or C
2. Thermostat Visual Inspection

Thermostat Visual Inspection

1. Remove the thermostat.
2. Examine the thermostat for signs of damage including: Valve not fully seated (light visible through the valve) Foreign material lodged in the main valve Bent or broken frame or flange Bent or broken spring Bent or broken valve or valve stem Wax leaking from wax reservoir or a bulge in the reservoir Any other damage or distortion
3. If damage is found during the inspection, remove any foreign material or broken pieces and install a new thermostat.
4. If no damage is found during the inspection, continue troubleshooting the system concern. Go to the «SYMPTOM CHART»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__symptom-chart) for further instructions.

Radiator Leak Test, Removed From Vehicle

Note. Never leak test an aluminum radiator in the same water that copper/brass radiators are tested in. Flux and caustic cleaners may be present in the cleaning tank and they will damage aluminum radiators.

Note. Always install plugs in the oil cooler fittings before leak testing or cleaning any radiator.

Note. Clean the radiator before leak testing to avoid contamination of tank.

Leak test the radiator in clean water with air pressurized to the maximum pressure listed in the specifications.

Fan Clutch Test

1. Turn the engine OFF and wait until the fan comes to a complete stop.
2. Spin the fan blade by hand. A light resistance should be felt. If there is no resistance or very high resistance, the minimum and maximum fan speeds must be checked.

Fan Clutch Test - Minimum Speed Requirement

1. Use a suitable marker to mark the coolant pump pulley and one of the fan blades.
2. Make sure the A/C is OFF, if equipped.
3. Start the engine and run it at approximately 2, 000 RPM for 5 minutes or until there is a noticeable reduction in fan noise to allow the fan clutch to go into disengaged mode.
4. Aim a laser photo tachometer at the coolant pump pulley. Run the engine to achieve 3, 000 RPM at the coolant pump pulley.
5. With the coolant pump pulley at 3, 000 RPM, aim the laser photo tachometer at the fan blade. Monitor and record fan speed.
6. The fan blade speed must be less than the specified RPM at 3, 000 RPM coolant pump pulley RPM. Refer to the «specification table»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) for correct fan speed.
7. Turn the engine off.
8. If the fan blade speed was greater than specified, install a new fan clutch.

Fan Clutch Test - Maximum Speed Requirement

1. Use a suitable marker to mark the coolant pump pulley and one of the fan blades.
2. Block off areas on each side of the radiator in the engine compartment, the front of the radiator grille and the bumper. Close the hood. This will raise the temperature of the air striking the fan clutch and should cause the fan blade to operate at maximum speed.
3. Place the climate control function selector switch in the MAX A/C position and the blower motor switch in the HI position, if equipped.
4. Start the engine and run it at approximately 2, 000 RPM until normal operating temperature has been achieved. Using an infrared thermometer, monitor the coolant pump pulley. Run the engine until the coolant pump pulley is at least 96°C (205°F).
5. Aim a laser photo tachometer at the coolant pump pulley. Run the engine to achieve 3, 000 RPM at the coolant pump pulley.
6. With the coolant pump pulley at 3, 000 RPM, aim the laser photo tachometer at the fan blade. Monitor and record fan blade speed.
7. The fan blade speed must be greater than the specified RPM at 3, 000 RPM coolant pump pulley RPM. Refer to the «specification table»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) for correct fan speed.
8. Open the hood and allow the engine to idle momentarily to lower engine temperature. Turn the engine off and remove the blocks from the radiator, grille and bumper.
9. If the fan blade speed is less than specified, install a new fan clutch.

Cooling System Draining, Filling and Bleeding

SPECIAL TOOLS CHART Airlift Cooling System Tester UVU550000 or equivalent

Scheme 12

MATERIAL SPECIFICATIONS

Draining

Note. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. Refer to COOLING SYSTEM FLUSHING . Failure to follow these instructions may result in cooling system or engine damage.

Note. The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated it must be disposed of correctly. Failure to follow these instructions may result in cooling system or engine damage.

Note. Less than 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement.

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/ford/econoline-e250/2012-2013/remont/hoistjack/#jacking-lifting) .
2. Release the pressure in the cooling system in the following sequence. Make sure the engine is cool. Wrap a thick cloth around the coolant pressure relief cap on the degas bottle. Slowly turn the cap counterclockwise (left) until the pressure begins to release. Step back while the pressure releases. When you are sure all the pressure has been released, use the cloth to turn and remove the cap.
3. Place a suitable container below the radiator draincock.
4. Open the radiator draincock and drain the coolant into a suitable container.
5. Close the radiator draincock when finished.

Filling and Bleeding with a Vacuum Cooling System Filler

Note. Engine coolant provides boil protection, corrosion protection, freeze protection, and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle. To maintain the integrity of the coolant and the cooling system: Add Motorcraft® Premium Gold Engine Coolant or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Do not add or mix with any other type of engine coolant. Mixing coolants may degrade the coolant's corrosion protection. Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Premium Gold Engine Coolant since a Ford-approved recycling process is not yet available.

Scheme 13

1. Install the vacuum cooling system filler and follow the manufacturer's instructions to fill and bleed the cooling system. Recommended coolant concentration is 50/50 engine coolant to distilled water. For extremely cold climates (less than -37°C (-34°F)): It may be necessary to increase the coolant concentration above 50%. NEVER increase the coolant concentration above 60%. Maximum coolant concentration is 60/40 for cold weather areas. A coolant concentration of 60% provides freeze point protection down to -50°C (-58°F). Engine coolant concentration above 60% decreases the overheat protection characteristics of the engine coolant and may damage the engine. For extremely hot climates: It is still necessary to maintain the coolant concentration above 40%. NEVER decrease the coolant concentration below 40%. Minimum coolant concentration is 40/60 for warm weather areas. A coolant concentration of 40% provides freeze point protection down to -26°C (-15°F). Engine coolant concentration below 40% decreases the corrosion and freeze protection characteristics of the engine coolant and may damage the engine. Vehicles driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.

Filling and Bleeding without a Vacuum Cooling System Filler

Note. Engine coolant provides boil protection, corrosion protection, freeze protection, and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle. To maintain the integrity of the coolant and the cooling system: Add Motorcraft® Premium Gold Engine Coolant or equivalent meeting Ford specification WSS-M97B51-A1 (yellow color). Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Do not add or mix with any other type of engine coolant. Mixing coolants may degrade the coolant's corrosion protection. Do not add alcohol, methanol, or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Premium Gold Engine Coolant since a Ford-approved recycling process is not yet available.

1. Add the correct engine coolant mixture to the degas bottle. Recommended coolant concentration is 50/50 engine coolant to distilled water. For extremely cold climates (less than -37°C (-34°F)): It may be necessary to increase the coolant concentration above 50%. NEVER increase the coolant concentration above 60%. Maximum coolant concentration is 60/40 for cold weather areas. A coolant concentration of 60% provides freeze point protection down to -50°C (-58°F). Engine coolant concentration above 60% decreases the overheat protection characteristics of the engine coolant and may damage the engine. For extremely hot climates: It is still necessary to maintain the coolant concentration above 40%. NEVER decrease the coolant concentration below 40%. Minimum coolant concentration is 40/60 for warm weather areas. A coolant concentration of 40% provides freeze point protection down to -26°C (-15°F). Engine coolant concentration below 40% decreases the corrosion and freeze protection characteristics of the engine coolant and may damage the engine. Vehicles driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.
2. Move the temperature blend selector to the full warm position.
3. Run the engine until it reaches operating temperature.
4. Add the correct engine coolant mixture to the degas bottle until the coolant level is between the COOLANT FILL LEVEL marks.
5. Turn off the engine and allow the cooling system to cool.
6. Repeat Steps 1 through 5 until the degas bottle level is OK.
7. Select the maximum heater temperature and medium low blower motor speed settings. Position the control to discharge air at the panel vents in the instrument panel.
8. Start engine and allow to idle until normal operating temperature is reached. Hot air should discharge from the panel vents. The engine coolant temperature gauge should maintain a stabilized reading in the middle of the NORMAL range and the upper radiator hose should feel hot to the touch.
9. Shut the engine off and allow to cool.
10. Check the engine for coolant leaks.
11. Check the engine coolant level in degas bottle and fill as necessary.

Cooling System Flushing

SPECIAL TOOLS CHART Drain Kit 164-R3662 or equivalent Flush Kit Hardware Package 164-R3658 or equivalent Proflush and Fill Coolant Flush and Fill 023-00154 or equivalent

Scheme 14

Scheme 15

MATERIAL SPECIFICATIONS

1. Once pressure is released, remove the pressure relief cap. Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .
2. Remove the thermostat. For additonal information, refer to «THERMOSTAT»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) .
3. Install the coolant hose connection without the thermostat.
4. Use cooling system Flush-All, Flush Kit Hardware Package and Drain Kit to flush the engine and radiator. Use Premium Cooling System Flush VC-1 or equivalent meeting Ford specification ESR-M14P7-A.
5. Install the thermostat. For additonal information, refer to «THERMOSTAT»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system) .
6. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .

Heater Core Backflushing

SPECIAL TOOLS CHART Flush Kit Hardware Package 164-R3658 or equivalent Drain Kit 164-R3662 or equivalent

1. Once pressure is released, remove the pressure relief cap.
2. Partially drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .
3. Use an appropriate cooling system flusher to backflush the heater core. Use Premium Cooling System Flush VC-1 or equivalent meeting Ford specification ESR-M14P7-A.
4. Fill the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .

Scheme 16

Removal and Installation

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/ford/econoline-e250/2012-2013/remont/hoistjack/#jacking-lifting) .
2. Drain the engine cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .
3. Loosen the block heater retaining screw and remove the block heater. To install, tighten to 2 Nm (18 lb-in).
4. To install, reverse the removal procedure.

MATERIAL SPECIFICATIONS

Scheme 17

1. Drain the engine cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .
2. Remove the Air Cleaner (ACL) outlet pipe. For additional information, refer to «INTAKE AIR DISTRIBUTION & FILTERING»(/ford/econoline-e250/2012-2013/remont/removal-installation/#intake-air-distribution-system-intake-air-filtering-system) .
3. If servicing the thermostat housing, disconnect the upper radiator hose.
4. Remove the 2 bolts and position the thermostat housing aside. Remove the thermostat and discard the O-ring seal. Inspect and clean the sealing surfaces with metal surface prep. Follow the directions on the packaging. Install a new O-ring seal. To install, tighten to 25 Nm (18 lb-ft).
5. To install, reverse the removal procedure.
6. Fill and bleed the engine cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) .

Coolant Pump

MATERIAL SPECIFICATIONS

Scheme 18

Scheme 19

1. Remove the cooling fan. For additional information, refer to «COOLING FAN»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-fan) .
2. Loosen the 4 coolant pump pulley bolts.
3. Rotate the tensioner clockwise and remove the accessory drive belt from the coolant pulley.
4. Remove the 4 bolts and the coolant pump pulley.
5. Remove the 4 coolant pump bolts and the coolant pump. Discard the coolant pump O-ring seal. Clean the sealing surfaces with metal surface prep. Follow the directions on the packaging.

Installation

1. Install a new O-ring on the coolant pump.
2. Position the coolant pump and install the 4 bolts. Tighten to 25 Nm (18 lb-ft).
3. Position the coolant pump pulley onto the coolant pump and install the bolts finger-tight.
4. Rotate the tensioner clockwise and install the accessory drive belt onto the coolant pulley.
5. Tighten the coolant pump pulley bolts. Tighten to 25 Nm (18 lb-ft).
6. Install the cooling fan. For additional information, refer to «COOLING FAN»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-fan) .

Scheme 20

1. For additional information, refer to the appropriate procedures.

Cooling Fan

SPECIAL TOOLS CHART Holding Wrench, Fan Clutch Pulley (4.6L, 5.4L) 303-239 (T84T-6312-C) Holding Wrench, Fan Clutch Pulley (6.8L) 303-478 (94T-6312-AH) Wrench, Fan Clutch Hub Nut (4.6L, 5.4L) 303-240 (T84T-6312-D) Wrench, Fan Clutch Hub Nut (6.8L) 303-214 (T83T-6312-B)

Scheme 21

Scheme 22

Scheme 23

Removal

All vehicles

Note. The fan, fan clutch and shroud must be removed and installed together due to insufficient clearance to remove them separately.

All vehicles

Scheme 24

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/ford/econoline-e250/2012-2013/remont/hoistjack/#jacking-lifting) .
2. Remove the cooling fan. For additional information, refer to «COOLING FAN»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-fan) .
3. If equipped, remove the underbody splash shield.
4. Disconnect the transmission oil cooler hoses. Plug or cap the lines as needed.
5. Disconnect the lower radiator hose.
6. Remove the 4 bolts and the 2 radiator support brackets. To install, tighten to 20 Nm (177 lb-in).
7. Remove the radiator from the vehicle.
8. To install, reverse the removal procedure.

Scheme 25

1. Release the pressure in the cooling system by slowly turning the pressure relief cap one half turn counterclockwise. When the pressure is released, remove the pressure relief cap.
2. Using hose clamp pliers, clamp the degas bottle lower hose.
3. Using a suitable suction device, siphon the coolant from the degas bottle.
4. Release the clamp and disconnect the radiator-to-degas bottle hose from the degas bottle.
5. Remove the 1 degas bottle bolt and the 2 degas bottle screws. To install, tighten to 6 Nm (53 lb-in).
6. Release the clamp, disconnect the degas bottle lower hose and remove the degas bottle.
7. To install, reverse the removal procedure.
8. Fill the degas bottle. Refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(/ford/econoline-e250/2012-2013/remont/cooling-system-mechanical/#engine-cooling-system__cooling-system-draining-filling-and-bleeding) for the recommended coolant mixture and fill level.

See also:
• ENGINE SYSTEM - GENERAL INFORMATION
• MODULE COMMUNICATIONS NETWORK
• ELECTRONIC ENGINE CONTROLS
• AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E
• AUTOMATIC TRANSAXLE/TRANSMISSION - TORQSHIFT(R)
• INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES
• CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS
• JACKING & LIFTING
• INTAKE AIR DISTRIBUTION & FILTERING
• COOLING SYSTEM FLUSHING
• ENGINE COOLING
• PCM DTC CHART
• SYMPTOM CHART
• PINPOINT TEST C
• PINPOINT TEST B
• PINPOINT TEST A
• FAN CLUTCH TEST - MINIMUM SPEED REQUIREMENT
• INSPECTION AND VERIFICATION
• COOLING SYSTEM PRESSURE TEST
• THERMOSTAT VISUAL INSPECTION
• COOLING SYSTEM DRAINING, FILLING AND BLEEDING
• COOLING FAN