Body System

BODY SYSTEM DIAGNOSIS AND TESTING

Inspection and Verification

Leaks

NOTE: Trim removal will reveal the location of most leaks

1. Remove trim or carpet in the general area of the leak.
2. Road test or water test the vehicle. Use leak check powder to help locate leak paths around weather-strips.
3. Inspect for a dust pattern around the area in question.
4. Inspect for water paths near and above the area in question.
5. Some leaks can be located by placing bright light under the vehicle, removing trim or carpet as needed, and inspecting the interior of the body at joints and weld lines.

Noise
- Wind noise, rattles, and their sources are detected by driving the vehicle at highway speeds. The vehicle should be driven in four different directions, with all the windows closed, the radio off, the blower motor on low speed, and all the ventilation ducts open.
- Most wind noise leaks occur at the door and window seals or at the sheet metal joints in the door or the door opening.