Pop Or Creak Noise From Rear Of Vehicle Behind The Seats - keywords body crack flex frame link missing noise seam suspension turn weld

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

Some customers may comment of a creak type noise in the rear of the car. This noise seems to be induced as the body of the vehicle flexes. An example of this would be turning into a parking lot were the entrance has an incline.

Note: Prior to performing the procedure below, be certain that the noise is not related to any suspension components or the panel behind the seat. Common areas of noise can be the rear stabilizer links or oil canning on the panel behind the seats. Technicians should isolate the rear stabilizer links and see if the noise has been eliminated (See PIC 4475). Next apply pressure to the body panel behind the driver's and /or passenger's seat to determine if the noise can be reduced. If the noise is corrected the panel is "oil canning" and transmitting the noise. Oil can noise can be reduced by adding a small crease in the metal to reduce panel movement or adding several small dimples to add rigidity to the panel. If the noise is not suspension related or the body panel, it may be necessary to continue with this PI.

Remove the fuel tanks and inspect the frame on both the left and right side of the vehicle. Refer to the illustration below that points out the area of concern. If a void is found, it will be necessary to re-weld this area.

Important: When MIG welding, it will be necessary to use all safety precautions since the area of concern is near the fuel tank(s).

1. Grind this area clean where welding is needed.
2. MIG weld area utilizing all safety precautions.
3. After welding is completed, coat area with rust inhibitor to prevent future corrosion.
4. Re-evaluate vehicle.

Caution: To avoid personal injury when exposed to welding flashes or to galvanized (Zinc Oxide) metal toxic fumes while grinding/cutting on any type of metal or sheet molded compound, you must work in a properly ventilated area, wearing an approved respirator, eye protection , earplugs, welding gloves, and protective clothing. This information was taken from SI Document 824779. Use labor operation S0017 if welding of the frame is required

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.