Inspection Procedure 7
INSPECTION PROCEDURE 7: Droning NoiseDIAGNOSIS
STEP 1. Check the oil pump or oil pump bracket installation.
Q: Is the oil pump or the oil pump bracket installation correct?
YES: Go to Step 2
NO: Repair it Then go to Step 3
STEP 2. Check the oil pump for damage.
NOTE: If a slight "beat noise" is produced by the oil pump when the steering wheel is turned fully and held in that position, this is not a malfunction.
Q: Is there damage?
YES: Replace the oil pump Then go to Step 3
NO: Go to Step 3
STEP 3. Retest the system.
Confirm that no noise is generated
Q: Is there noise?
YES: Repeat from Step 1
NO: The procedure is complete