Squeak or Noise From Front End Over Bumps - keywords rear suspension body turn
| Subject: | Squeak Or Creak Noise From Underbody Over Bumps |
| Models: | 1999-2006 Chevrolet Silverado Regular Cab |
| 1999-2006 GMC Sierra Regular Cab |
This PI is being updated to add 2006 model year. Please discard PIT3401.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Squeak or creak noise from the underbody over larger bumps or potholes.
Recommendation/Instructions:
The cab safety strap may be creating the squeak/creak noise. Remove the lower bolt of the safety strap at the body mount. Fabricate an insulator washer from some type of sheet plastic (washer bottle...etc.) Install this washer between the bolt head and the body mount bracket. Reinstall the bolt and tighten to torque specification of 85 Nm (62 ft lbs).
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
