Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSHUB ASSEMBLY (FRONT) - SQUEAK/SQUAWK NOISE
1990 Chevrolet Lumina APV V6-191 3.1L
Hub Assembly (Front) - Squeak/Squawk Noise
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Hub Assembly (Front) - Squeak/Squawk Noise
9227chevy01
Number:
91-486-3C
Section:
3C
Date:
MARCH 1992
Corporate Bulletin No.:
203501
ASE No.:
A4
Subject:
HUB ASSEMBLY SEAL SQUEAK/SQUAWK NOISE
Model and Year:
1990-91 LUMINA (APV)
CONDITION:
Some owners of 1990-91 U-van models may comment about a squeak or squawk noise coming from the front of the vehicle in or near the front wheels. This condition may be caused by insufficient grease on the lip seal of the hub assembly.
CORRECTION:
Disconnect Hub Assembly following service manual "on-vehicle service" procedure for front suspension in Section 3C. Lubricate Hub and Seal area with GM1052497 grease thoroughly (fill cavity between seal and bearing).
NOTE:
For 1992 model vehicles, this condition has been eliminated with the introduction of a new Hub and Assembly design, which requires no lubrication.
WARRANTY INFORMATION:
Use applicable Labor Time Guide Operation Number and Time.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.