Hello fellow G8/VE owners.
Seems like we have the same problems ...
Maybe this TSB (techinical Service bulletin) can help ....
in exchange when someone figures out how to fix the BACK SUSPENSION NOISE ... PLEASE LET ME KNOW !!!
GM USA/GM CANADA
#09-03-08-008: Knock Clunk Or Click Noise From Front Suspension Over Small Bumps (Replace Front Lower Control And Caster Arms) -
Attention: This bulletin is intended to correct a condition for front end knock, clunk or clicking. Vehicles previously repaired as part of Campaign #09203A are to follow a different repair procedure as outlined under the Correction section below.
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Condition
Some customers may comment on a clunk, knock or click noise from the front suspension over small bumps.
Cause
The rubber "boot" over the front end lower control arm ball joint may have become dislodged or torn compromising the seal. Moisture inside the ball joint seal may cause corrosion, shortening the service life of the component.
Correction
Notice: Before replacing any components under the terms of this bulletin, you must confirm the past service history of the vehicle. Please use GMVIS to confirm if the vehicle was previously repaired under Customer Satisfaction Campaign #09203A. If the vehicle was repaired under this service action, ONLY replace the front control arm found to be the source of the noise and claim the applicable Labor Operation for that part as outlined in SI and the labor time guide.
Vehicles not identified in Customer Satisfaction Campaign #09203A (or not repaired during its duration) and found to have one or more of the rubber boots improperly sealing should have all four front control arms replaced.
Front Lower Control and Caster Arm Replacement (Both Sides)
The instructions below detail replacement of all four front lower control and caster arms.
Danger: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.
•Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.
•Remove the front wheels. Refer to Tire and Wheel Removal and Installation in SI.
•Loosen the control arm to steering knuckle retaining nut (1) about two turns.
•Using the J-42188-B Ball Joint Separator (1), disconnect the control arm (2) from the steering knuckle (3).
•Remove the control arm to steering knuckle retaining nut (1).
•Separate the control arm (2) from the steering knuckle (3).
•Remove the control arm to subframe retaining bolt.
•Remove and discard the front control arm (3) from the subframe (2).
•Install the NEW front control arm (3) to the subframe (2).
Warning: The existing control arm bolts and nuts may be reused for this procedure. You MUST remove all traces of the original adhesive patch on the bolt. Clean the threads of the bolt with denatured alcohol, GM Low VOC Brake Cleaner GM P/N 12378392 or equivalent, and allow to dry. Before Installation, apply threadlocker GM P/N 12345493 (in Canada, use 10953488) or blue, medium LOCTITE™ 242.
Note: The NEW front control arm to subframe retaining bolt (1) must not be fully tightened at this stage.
•Install the NEW front control arm to subframe retaining bolt (1).
•Install the NEW control to the steering knuckle.
•Install the NEW front control arm (1) to steering knuckle retaining nut (2).
Important: Use the J 45059 Torque / Angle Tool when tightening the following:
Tighten
• First Pass: Tighten the nut to 40 N·m (30 lb ft).
• Final Pass: Tighten the nut an additional 60 degrees.
•Loosen the caster arm to steering knuckle retaining nut (1) about two turns.
•Using the J-42188-B Ball Joint Separator (3), disconnect the caster arm (1) from the steering knuckle (2).
•Remove the caster arm to steering knuckle retaining nut (3). Mark keyway slot on the bushing relative to the cradle.
•Separate the caster arm (1) from the steering knuckle (2).
•Remove the caster arm to subframe retaining bolt.
•Remove and discard the caster arm from the subframe .
•Install the NEW caster arm to the subframe. Line up the keyway slot on the bushing to previous mark on the cradle.
•Install the front caster arm to the subframe retaining bolt.
•Install the new front caster arm to the steering knuckle.
Note: The caster arm to subframe retaining bolt is not to be fully tightened at this stage.
•Install the NEW caster arm (1) to the steering knuckle (2) retaining nut.
Important: Use the J 45059 Torque / Angle Tool when tightening the following
Tighten
• First Pass: Tighten the nut to 50 N·m (37 lb ft).
• Final Pass: Tighten the nut an additional 60 degrees.
•Repeat Steps 3-20 for the other side of the vehicle then continue below.
•Install the front wheels. Refer to Tire and Wheel Removal and Installation in SI.
•Lower the vehicle.
•Bounce the vehicle several times to settle the suspension.
•Check and adjust the wheel alignment. Refer to Front End Alignment in SI.
•Tighten the NEW control arm to subframe retaining bolt.
Important: Use the J 45059 Torque / Angle Tool when tightening the following:
Tighten
• First Pass: Tighten the bolts to 40 N·m (30 lb ft).
• Final Pass: Tighten the bolts an additional 120 degrees.
•Tighten the NEW caster arm to subframe retaining bolt.
Important: Use the J 45059 Torque / Angle Tool when tightening the following:
Tighten
• First Pass: Tighten the bolts to 40 N·m (30 lb ft).
• Final Pass: Tighten the bolts an additional 120 degrees.
Parts Information
Part Number
Description
Qty
92244046
Arm Asm -- Frt Lwr Control Frt Right
1
92244047
Arm Asm -- Frt Lwr Control Frt Left
1
92244050
Arm Asm -- Frt Lwr Control (Caster) Right
1
92244051
Arm Asm -- Frt Lwr Control (Caster) Left
1
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
E9505*
Replace Front Lower Control & Caster Arms (Both Sides) - Perform Wheel Alignment
2.6 hrs
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.
Note: If the vehicle was previously repaired under Campaign 09203A, ONLY replace the front control arm found to be the source of the noise and claim the applicable Labor Operation for that part as outlined in SI and the Labor Time Guide.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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