Power Steering - Moan/Shudder During Parking Manuevers
90buick12 Bulletin 90-3-16Date July '90
Ref. No. 90-137-3
Corp. Ref. No. 003001R
SUBJECT: POWER STEERING SHUDDER (NEW ISOLATED CRANKSHAFT BALANCER KIT)
MODELS AFFECTED: 1989-90 CENTURY MODELS WITH 3300 V6 ENGINE (VIN CODE N)
Some owners of 1989-90 Century Models with 3300 V6 engines (VIN Code N) may comment of a power steering moan and/or shudder during parking maneuvers or other situations when the steering wheel is turned while the vehicle is stopped or moving very slowly.
Perform diagnostics found in Section 3 of the 1989-90 Century Model service manual and correct any faults present. If normal diagnostics do not correct the condition, install isolated crankshaft balancer kit, part number 12339997.
SERVICE PROCEDURE:
Remove or Disconnect
1. Negative battery cable
2. Serpentine belt
3. Raise car and suitably support, see Section OA
4. Right front wheel and tire assembly
5. Inner fender splash shield (right side)
6. Torque converter cover
7. Hold flywheel with J 37096
8. Balancer bolt
9. Crankshaft balancer
IMPORTANT:
The balancer is serviced as an assembly. Do not attempt to separate pulley from balancer hub.
Install or Connect
1. Crankshaft balancer
^ Lubricate seal surface with engine oil
2. Balancer bolt and washer
^ Hold flywheel with J 37096
^ Balancer bolt to 140 N-m (103 lbs.ft.)
- Loosen bolt to finger tight
- Retorque to 150 N-m (110 lbs.ft.) plus 56 degrees
3. Inner fender splash shield
4. Right front wheel and tire assembly
5. Torque converter cover
6. Lower car
7. Serpentine belt.
8. Negative battery cable
Parts are expected to be available on August 13, 1990. Until then normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP orders will be accepted. GMSPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while the 400 control is in place.
WARRANTY INFORMATION:
Labor Operation Number: T5200
Labor Time: .6 hr.
Trouble Code: 92