Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Engine Cooling System: Specifications Ford Ranger II facelift

MATERIAL SPECIFICATIONS

ItemSpecificationFill Capacity
Motorcraft® Premium Gold Engine Coolant with Bittering Agent (bittered in US only) VC-7-B (US); CVC-7-A (Canada); or equivalent (yellow color)WSS-M97B51-A12.3L Manual Transmission - 10.6L (11.2 qt), 2.3L Automatic Transmission - 10.3L (10.9 qt), 4.0L SOHC Manual Transmission - 12.8L (13.5 qt), 4.0L SOHC Automatic Transmission - 12.5L (13.2 qt)
Premium Cooling System Flush VC-1ESR-M14P7-A

MATERIAL SPECIFICATIONS

GENERAL SPECIFICATIONS

ItemSpecification
Fan Clutch Test Specifications
Minimum speed requirement - 2.3L1,000 RPM
Minimum speed requirement - 4.0L1,500 RPM
Maximum speed requirement2,000 RPM
Pressure Tests
Complete cooling system maximum pressure - 2.3L engine110 kPa (16 psi)
Complete cooling system maximum pressure - 4.0L enginesUse individual readings listed on the pressure relief cap
Pressure relief cap - 2.3L engine110 kPa (16 psi)
Pressure relief cap - 4.0L enginesUse individual readings listed on the pressure relief cap
Radiator (out of vehicle)138 kPa (20 psi)
Thermostat Opening Temperature - 2.3L
Fully open97-106°C (206.6-222.8°F)
Starts to open90°C (194°F)
Thermostat Opening Temperature - 4.0L
Fully open106°C (223°F)
Starts to open90-94°C (194-201°F)

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

DescriptionNm
Accessory drive belt idler pulley bolt45
Air deflector-to-frame bolts15
Block heater - 2.3L40
Block heater screw - 4.0L4
Coolant expansion tank-to-body nuts and bolts - 4.0L7
Coolant outlet pipe bolts - front25
Coolant outlet pipe bolts - rear10
Coolant pump pulley bolts - 2.3L20
Coolant pump pulley bolts - 4.0L25
Coolant pump-to-cylinder block bolts10
Cooling fan clutch-to-cooling fan pulley - 2.3L55
Cooling fan clutch-to-coolant pump pulley - 4.0L55
Cooling fan shroud-to-radiator bolts - 2.3L7
Cooling fan shroud-to-radiator bolts - 4.0L6
Cooling fan-to-clutch bolts - 2.3L9
Cooling fan-to-clutch bolts - 4.0L7
Degas bottle nut and bolt - 2.3L7
Draincock2
EGR valve coolant hose bracket nut20
Electric cooling fan bracket-to-shroud bolts - 2.3L8
Electric cooling fan-to-shroud bolts - 2.3L8
Oil level indicator tube-to-front coolant outlet tube bolt10
Power steering fluid reservoir bolts6
Radiator-to-radiator support bolts7
Speed control servo mounting bolt11
Thermostat housing bolts - 2.3L10
Thermostat housing bolts - 4.0L11
Thermostat outlet connection bolts - 4.0L10
Transmission cooler tube-to-radiator fittings - 2.3L27
Transmission cooler tube-to-radiator fitting - 4.0L25
Transmission crossmember-to-frame rail bolts99
Transmission mount-to-crossmember nuts99

TORQUE SPECIFICATIONS

Note. The engine cooling system is filled with Motorcraft Premium Gold Engine Coolant. Always fill the cooling system with the same type coolant that is present in the system. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage.

Note. If Cooling System Stop Leak Pellets are used, darkening of the Motorcraft Premium Coolant from yellow to golden tan will occur.

The engine cooling system consists of the following

  1. Block heater (optional)
  2. Engine Coolant Temperature (ECT) sensor (4.0L engines)
  3. Cylinder Head Temperature (CHT) sensor (2.3L engines)
  4. Fan blade
  5. Fan clutch
  6. Fan shroud
  7. Fan shroud with electric fan (2.3L engines with A/C)
  8. Radiator
  9. Pressure cap
  10. Radiator coolant recovery reservoir (4.0L engines)
  11. Degas bottle (2.3L engines)
  12. Thermostat
  13. Coolant pump
  14. Radiator draincock

The radiator allows excess engine heat to be transferred to the air.

Radiator tanks cannot be repaired, install as an assembly.

For the 2.3L engine, the thermostat and housing must be serviced as an assembly.

The 2.3L engine uses a "cold side" thermostat. This means the thermostat is located at the lower radiator hose connection to the engine, where coolant enters the engine after being cooled by the radiator. During initial warm-up, the cooler coolant from the radiator will quickly close the thermostat after the warm coolant in the engine opens the thermostat slightly. The thermostat will open and close several times before the coolant coming from the radiator is warm enough to allow the thermostat to remain open. The engine must run much longer than a vehicle with a "hot side" thermostat before the thermostat remains fully opened.

The 4.0L engine use a typical "hot side" 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 or coolant expansion tank.

When adding engine coolant, use a 50/50 mixture of engine coolant and distilled water.

To maintain the integrity of the coolant and the cooling system

  1. Add Motorcraft Premium Gold Engine Coolant. Do not mix coolant types.
  2. NOTE: If Cooling System Stop Leak Pellets are used, darkening of the Motorcraft Premium Coolant from yellow to golden tan will occur. Do not add or mix Motorcraft Specialty Orange Engine Coolant. 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.

The optional block heater

  1. electrical heating element is installed in the core plug opening. uses a standard 110V electrical supply
  2. keeps the engine coolant warm during cold weather.