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Makes 🢒 Cadillac 🢒 2008 🢒 CTS 🢒 Bulletins 🢒 Creak Noise Coming From The Underside Rear Of The Vehicle - keywords bump bushing link squawk squeak toe

Creak Noise Coming From The Underside Rear Of The Vehicle - keywords bump bushing link squawk squeak toe

Subject:Creak Noise Coming From Underside Rear Of The Vehicle

Models:2008 Cadillac CTS


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Some customers may experience a creak noise coming from the rear underside of the vehicle, especially at low ambient temperatures. The cause may be the rear suspension toe adjustment link inner and outer bushings (1). The noise is produced by the relative motion between the outer flange of the bushing and the outer can of the link.

The following characteristics describe the rear suspension toe adjustment link bushing noise.

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The noise should be coming from the rear of the vehicle and from under the vehicle.

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The noise should occur when the vehicle is driven over bumps, curbs, or twist ditches - events where the rear suspension sees medium to large amounts of vertical travel/motion.

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The noise should be a squeak, creak, or squawk.

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The noise should get worse in cold weather.

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The noise might go away if the bushing is wet (for instance, if the vehicle is driven in the rain).


Object Number: 2055039 Size: SH

Recommendation/Instructions:

Application of GM Super Lube to the bushings can reduce or eliminate the noise until a re-designed toe link assembly is available. Follow the steps listed below.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Hold a piece of paper or cardboard between the toe link outboard bushing and the brake rotor/caliper to prevent overspray of lube onto the brake rotor/caliper. If necessary, remove the tires and wheels. Refer to Tire and Wheel Removal and Installation.
  3. Spray GM Super Lube (Part Number 12346241) (In Canada 10953474) on the flanges of the outboard toe link bushing - both at the knuckle-side (2) and the bolt-head-side of the bushing (3) as shown in the cutaway diagram below. Use enough Super Lube to cover the bushing flanges.

    4. Object Number: 2055040 Size: SH
  4. Spray Super Lube on the flanges of the inboard toe link bushing. Use enough Super Lube to cover the both of the bushing flanges.
  5. If the tires and wheels were removed, install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  6. Remove the support and lower the vehicle.

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.