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Cooling System: Diagnosis Honda Element YH2 рестайлинг 2

Cooling System (Mechanical) 23 illustrations ~1598 words

Thermostat Test

Replace the thermostat if it is open at room temperature.

To test a closed thermostat

Scheme 5

Scheme 5: Thermostat Test
Scheme 5: Thermostat Test
  1. Suspend the thermostat (A) in a container of water. Do not let the thermometer (B) touch the bottom of the hot container.
  2. Heat the water, and check the temperature with a thermometer. Check the temperature when the thermostat first opens, and when it is fully open.
  3. Measure the lift height of the thermostat when it is fully open. Standard Thermostat Lift Height: Above 8.0 mm (0.31 in.) Starts Opening: 169-176°F (76-80°C) Fully Open: 194°F (90°C)

Scheme 6

Scheme 6: Water Pump Inspection
Scheme 6: Water Pump Inspection
  1. Remove the drive belt (see «DRIVE BELT REPLACEMENT»(ref-290825-S35994715752008072200000) ).
  2. Turn the water pump pulley counterclockwise. Check that it turns freely. If it doesn't turn smoothly, replace the water pump (see «WATER PUMP REPLACEMENT»(ref-290817-S20548386712008072200000) ). NOTE: When you check the water pump, you may see a small amount of "weeping" from the bleed holes (A). This is normal.
  3. Install the drive belt (see «DRIVE BELT REPLACEMENT»(ref-290825-S35994715752008072200000) ).

Scheme 7

Scheme 7: Water Pump Replacement
Scheme 7: Water Pump Replacement
  1. Remove the drive belt (see «DRIVE BELT REPLACEMENT»(ref-290825-S35994715752008072200000) ).
  2. Drain the engine coolant (see «COOLANT CHECK»(ref-290817-S27864475492008072200000) ).
  3. Remove the crankshaft pulley (see «CRANKSHAFT PULLEY REMOVAL AND INSTALLATION»(ref-290827-S26594396092008072200000) ).
  4. Remove the six bolts securing the water pump, then remove the water pump (A).
  5. Inspect and clean the O-ring groove and mating surface with the water passage.
  6. Install the water pump with new O-ring (B).
  7. Clean up any spilled engine coolant.
  8. Install the crankshaft pulley (see «INSTALLATION»(ref-290827-S33675359612008072200000) ).
  9. Install the drive belt (see «DRIVE BELT REPLACEMENT»(ref-290825-S35994715752008072200000) ).
  10. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open (see step 10 on «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).

Scheme 8

Scheme 8: Coolant Check
Scheme 8: Coolant Check
  1. Look at the coolant level in the coolant reservoir. Make sure it is between the MAX mark (A) and MIN mark (B).
  2. If the coolant level in the coolant reservoir is at or below the MIN mark, add coolant to bring it up to the MAX mark, and inspect the cooling system for leaks.

Scheme 9

Scheme 9: Coolant Replacement
Scheme 9: Coolant Replacement

Scheme 10

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Scheme 11

Scheme 11
Scheme 11
  1. Start the engine. Set the heater temperature control dial to maximum heat, then turn the ignition switch OFF. Make sure the engine and radiator are cool to the touch.
  2. Remove the radiator cap.
  3. Loosen the drain plug (A), and drain the coolant.
  4. After the coolant has drained, torque the radiator drain plug.
  5. Remove, drain, and reinstall the coolant reservoir.
  6. Fill the coolant reservoir to the MAX mark (A) with Honda Long Life Antifreeze/Coolant Type 2 (P/N OL999-9001).
  7. Pour Honda Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck. NOTE: Always use Honda Long Life Antifreeze/Coolant Type 2. Using a non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail. Honda Long Life Antifreeze/Coolant Type 2 is a mixture of 50% antifreeze and 50% water. Do not add water. Engine Coolant Capacities (Including the reserve tank capacity of 0.6 L (0.16 US gal)) At Coolant Change: M/T: 5.2 L (1.37 US gal) A/T: 5.1 L (1.35 US gal) After Engine Overhaul: M/T: 7.3 L (1.93 US gal) A/T: 7.2 L (1.90 US gal)
  8. Install the radiator cap loosely.
  9. Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).
  10. Turn off the engine. Check the level in the radiator and add Honda Long Life Antifreeze/Coolant Type 2 if needed.
  11. If the maintenance minder required engine coolant replacement, reset the maintenance minder (see «RESETTING THE MAINTENANCE INFORMATION DISPLAY»(ref-290811-S12906300162008072200000) ), and this procedure is complete. If the maintenance minder did not require engine coolant replacement, go to step 12 .
  12. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on «HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM)»(ref-290833-S38113548712008072200000) ).
  13. Make sure the HDS comunicates with the vehicle and the engine control module (ECM)/powertrain control module (PCM). If it doesn't communicate, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(ref-355245-S06359967292010012100000) ).
  14. Turn the ignition switch ON (II).
  15. Select BODY ELECTRICAL with the HDS.
  16. Select ADJUSTMENT in the GAUGE MENU with the HDS.
  17. Select RESET in the MAINTENANCE MINDER with the HDS.
  18. Select MAINTENANCE SUB ITEM 5 RESET with the HDS.
  19. Turn off the engine. Check the level in the radiator, and add Honda Long Life Antifreeze/Coolant Type 2, if needed.
  20. Put the radiator cap on tightly, then run the engine again, and check for leaks.
  21. Clean up any spilled engine coolant.
  22. Reset the multi-information display (see «RESETTING THE MAINTENANCE INFORMATION DISPLAY»(ref-290811-S12906300162008072200000) ).

Scheme 12

Scheme 12: Thermostat Replacement
Scheme 12: Thermostat Replacement

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Scheme 15
Scheme 15
  1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).
  2. Clean any dirt off the quick connector (A), thermostat cover, and lower radiator hose.
  3. Pull out lock (B) by hand, then wiggle the quick connector loose, and remove it from the thermostat cover. Do not use any tools to remove the quick connector.
  4. Remove the thermostat (A).
  5. Install the thermostat with a new O-ring (B).
  6. Check the quick connector (A) and set ring (B) for cracks or damage. If the connector and/or set ring are cracked or damaged, replace the connector.
  7. Make sure the set ring is in place inside the quick connector. If the set ring is off the connector, replace the quick connector.
  8. Replace the O-ring (C) in the quick connector.
  9. Check the lock (D). If the lock is damaged or deformed, replace it. When installing the new lock to the connector, push it straight down along the groove.
  10. Clean the connecting surface of the thermostat cover (E), then apply clean engine coolant around the connecting surface.
  11. Push the lock (A) down, then push the quick connector (B) onto the thermostat cover until you hear it click.
  12. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open (see step 10 on «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).

Scheme 16

Scheme 16: Water Passage Replacement
Scheme 16: Water Passage Replacement

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Scheme 24

Scheme 24
Scheme 24
  1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).
  2. Clean any dirt off the quick connector (A), thermostat cover, and lower radiator hose.
  3. Pull out the lock (B) by hand, then wiggle the quick connector loose, and remove it from the thermostat cover. Do not use any tools to remove the quick connector.
  4. Remove the alternator (see «ALTERNATOR REMOVAL AND INSTALLATION»(ref-290825-S27008973802008072200000) ).
  5. Remove the splash shield (see step 26 on «ENGINE REMOVAL»(ref-290840-S06166089872008072200000) ).
  6. Remove the A/C compressor without disconnecting the A/C hoses (see step 50 on «ENGINE REMOVAL»(ref-290840-S06166089872008072200000) ).
  7. Remove the intake manifold (see «REMOVAL»(ref-290821-S41603061832008072200000) ).
  8. Remove a bolt (A) securing the connecting pipe. B C
  9. Remove the connecting pipe (B), water bypass hose (C), and positive crankcase ventilation (PCV) hose (D).
  10. Remove the water passage (A).
  11. Remove the thermostat housing (B).
  12. Remove the water pump (see «WATER PUMP REPLACEMENT»(ref-290817-S20548386712008072200000) ).
  13. Install the water pump (see «WATER PUMP REPLACEMENT»(ref-290817-S20548386712008072200000) ).
  14. Install the thermostat housing (A) with a new O-ring (B).
  15. Clean and dry the water passage mating surfaces.
  16. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine block mating surface of the water passage. Install the component within 5 minutes of applying the liquid gasket. NOTE: If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes. If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.
  17. Install the water passage (A) with a new O-ring (B). NOTE: Wait at least 30 minutes before filling the engine with coolant. Do not run the engine for at least 3 hours after installing the water passage.
  18. Connect the water bypass hose (A) and the PCV hose (B).
  19. Install the connecting pipe (C) with a new O-ring (D), then torque a bolt (E) securing the connecting pipe.
  20. Install the intake manifold (see «INSTALLATION»(ref-290821-S27171017002008072200000) ).
  21. Install the A/C compressor (see step 11 on «ENGINE INSTALLATION»(ref-290840-S36876407842008072200000) ).
  22. Install the splash shield (see step 24 on «ENGINE INSTALLATION»(ref-290840-S36876407842008072200000) ).
  23. Install the alternator (see «INSTALLATION»(ref-290825-S21984002462008072200000) ).
  24. Check the quick connector (A) and set ring (B) for cracks or damage. If the connector and/or set ring are cracked or damaged, replace the connector.
  25. Make sure the set ring is in place inside the quick connector. If the set ring is off the connector, replace the quick connector.
  26. Replace the O-ring (C) in the quick connector.
  27. Check the lock (D). If the lock is damaged or deformed, replace it. When installing the new lock on the connector, push it straight down along the groove.
  28. Clean the connecting surface of the thermostat cover (E), then apply clean engine coolant around the connecting surface.
  29. Push the lock (A) down, then push the quick connector (B) onto the thermostat cover until you here it click.
  30. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open (see step 10 on «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).
  31. Clean up any spilled engine coolant.

Scheme 25

Scheme 25: EGR Passage Replacement
Scheme 25: EGR Passage Replacement

Scheme 26

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Scheme 27
Scheme 27
  1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).
  2. Remove the three bolts (A) securing the evaporative emission (EVAP) canister purge valve bracket and remove the two bolts (B) securing the harness bracket.
  3. Remove the upper radiator hose (A), heater hose (B), water bypass hose (C), and connecting pipe mounting bolt (D).
  4. Remove the exhaust gas recirculation (EGR) passage (A).
  5. Install the EGR passage with a new gasket (B).
  6. Install the other parts in the reverse order of removal.
  7. Refill the radiator with engine coolant, and bleed air from the cooling system with the heater valve open (see step 10 on «COOLANT REPLACEMENT»(ref-290817-S11744345252008072200000) ).
  8. Clean up any spilled engine coolant.

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