Engine - Cold Engine Whine Below 50 Degrees Fahrenheit

09-002

January 23, 2009

Applies To:
2008 CR-V - ALL

Cold Engine Whines Below 50°F

SYMPTOM

A louder than normal whine is heard from a cold engine when the ambient temperature is below 50°F.

PROBABLE CAUSE

The engine oil pump gear clearances are out of spec.

CORRECTIVE ACTION

Replace the engine oil pump.

NOTE:
This condition will not cause any internal engine damage, just noise.





PARTS INFORMATION





REQUIRED MATERIALS

WARRANTY CLAIM INFORMATION

In warranty: The normal warranty applies.

Operation Number: 111150

Flat Rate Time: 3.4 hours

Failed Part: P/N 15100-RZA-003
H/C 8410698

Defect Code: 03214

Symptom Code: 03220

Template ID: 09-002A

Skill Level: Repair Technician

Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Parts and Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.

DIAGNOSIS

1. Make sure the ambient temperature is below 50°F and the engine is cold. Start the engine.

Does the engine make a louder than normal whine?

Yes - Turn off the engine, then go to step 2.

No - This bulletin does not apply.

2. With the engine still cold, remove the drive belt, then start the engine, and run it briefly while listening for the noise.

NOTE:
Do not run the engine for very long, because the water pump and the alternator are not operating.

^ If you still hear the noise, reinstall the drive belt, then go to REPAIR PROCEDURE.

^ If you don't hear the noise, reinstall the drive belt, then continue with normal troubleshooting.

NOTE:
A certain level of whine from the power steering pump is normal. Replacing the power steering pump will not change this noise.

REPAIR PROCEDURE

1. Remove the engine oil pan:

^ Refer to page 7-11 of the 2007-2008 CR-V Service Manual, or

^ Online, enter keywords OIL PAN, and select Oil Pan Removal from the list.

2. Remove the engine oil pump:

^ Refer to pages 8-14 and 8-15 of the service manual, or

^ Online, enter keywords OIL PUMP, and select Engine Oil Pump Overhaul from the list.

3. Install the new engine oil pump assembly:

^ Refer to page 8-20 of the service manual, or

^ Online, enter keywords OIL PUMP, and select Engine Oil Pump Overhaul from the list.

4. Reinstall the oil pan:

^ Refer to page 7-30 of the service manual, or

^ Online, enter keywords OIL PAN, and select Oil Pan Installation from the list.