Location III
LOCATION III: TRUNK COMPARTMENT AND UNDER REAR SEATLocation of Water Leak Source
1. At least 12 minutes should he spent during initial hose testing, because the water may have to move through several body seams before being detected.
2. Turn the water pressure to the hose so that a 12" to 18" stream of water is present while the hose is in a vertical position.
3. Carpet, side panels and rear seat bottom may have to be removed to locate the source of the leaks.
4. Lower the rear seat backs. From inside the vehicle, close the door and, using a flashlight, look for water leaks during the hose test.
5. Have an assistant direct the water stream over the entire rear of the vehicle, concentrating on the following areas: Figure 17.
- Along the deck lid to body gap.
- Up each "C" pillar and across the upper portion of the rear window.
- Along the key lock cylinder, rear deck lid finisher and combination lamps.
- Along the fuel filler door-to-body gap.
6. Have an assistant direct the water stream over the entire inner wheel well area concentrating on the following areas:
- Inner wheel well-to-quarter panel seam and bumper plug. Figure 18.
- Inner wheel well-to-trunk floor pan seam. Figure 19.
- Inner wheel well-to-floor pan seam (to check for leakage under the rear seat.)
Note:
Direct a heavy stream of water where the rocker panel meets the inner wheel well (to check for leakage into the rocker panel). Figure 17.
7. Note which area the water enters the vehicle. Refer to the appropriate location's repair procedure. Figure 20.
AREA A: INTERIOR TRUNK END PANEL TRIM (PLASTIC) AND/OR TRUNK WEATHERSTRIP - ALSO REAR COMBINATION LAMPS AREA
AREA B: INNER WHEEL WELL-TO-TRUNK FLOOR PAN SEAM
AREA C: STORAGE WELLS (RIGHT OR LEFT) BEHIND WHEEL WELL
AREA D: INNER WHEEL WELL-TO-FLOOR PAN (UNDER REAR SEAT) AND INSIDE THE ROCKER PANELS
AREA E: KEY LOCK CYLINDER
8. If water is collecting in storage wells, check the drain holes for debris or undercoating.
Note:
Do not seal up the drain holes at the bottom of area C. Repair Procedure.
AREA A: INTERIOR TRUNK END PANEL TRIM (PLASTIC) AND/OR TRUNK WEATHERSTRIP - ALSO REAR COMBINATION LAMPS AREA
1. If water is running down over the interior trunk end-panel trim or over/under the trunk weatherstrip, pull up the trunk weatherstrip and check grey sealer material and any body seams near the linkage area. Confirm that grey sealer covers the top of the flange in one solid strip. Check for pin holes, missing sealer or burrs. Figure 21 and Figure 22.
2. If water is located behind the interior trunk end-panel trim or carpet, remove the trim panel. Direct a stream of water at the rear of the vehicle and pinpoint the location of the leak. Check the body seams for any pinholes or missing sealer. Figure 21.
3. If pinholes and/or missing sealer are found in step 2, add a non-hardening grey body seam sealer to fill in the empty spots and reinstall the trunk weatherstrip. Make sure the trunk weatherstrip is routed under the latch striker and press it firmly in place. Retest for water leaks.
4. If the leak is from the combination lamp(s) area, confirm that the mounting studs/nuts are tight and the assemblies are not cracked. check end panel-to-quarter panel seams for any pinholes or missing sealer. If the leak continues, remove the combination lamp(s) and gasket(s). Install a new gasket to the combination lamp(s). Figure 21.
Note:
Before installing the new gasket, apply sealer to both sides of the gasket. Also, confirm body-to-combination lamp surfaces are flush and no burrs are present.
AREA B: INNER WHEEL WELL-TO-TRUNK FLOOR PAN SEAM
1. If water leaks into the forward area of the trunk, make sure that the weatherstrip is properly seated and not leaking. Figure 23.
2. If no problems are found, check all trunk opening seams and the inner wheel well-to-trunk floor pan seam for missing sealer or pin holes. Seal any suspected areas and retest for leaks. If no problems are found, go to step 3.
3. If necessary, remove the rear shoulder seat belt mounts and inside "C" pillar trim panel(s). Remove the mounting nuts. Next, remove the rear window glass side molding. Figures 24 and 25.
4. Check the condition of the rear window sealer in this area. Use a flashlight to find small pinholes. Check extractor side molding mounting hardware for missing or damaged sealer or gaskets. Apply sealer to all mounting points as necessary. Figure 25.
AREA C: STORAGE WELLS (RIGHT OR LEFT) BEHIND WHEEL WELL
1. If water is collecting in storage wells, check drain holes for dirt or undercoating.
Note:
Do not seal up drain holes at the bottom of the storage wells.
2. Check for any leaks at the grommet and plug between the quarter panel and bumper. Examine seems for missing sealer or pin holes. Seal any suspected defects. Figures 26 and 27.
3. Check for any leaks at the fuel filler neck-to-body in the left quarter. If moisture is present, remove the filler neck.
4. Apply sealer to both sides of the gasket and reinstall.
AREA D: INNER WHEEL WELL-TO-FLOOR PAN (UNDER REAR SEAT) AND INSIDE THE ROCKER PANELS
1. Remove rear seat bottom and lift carpet.
2. Check for any leaks due to pin holes or missing sealer along the inner wheel well-to-body seam.
3. Remove the plastic sill plates and confirm that there is no water being retained inside the rocker panel.
4. If water is present, seal the inner wheel well-to-rocker panel seam.
AREA E: KEY LOCK CYLINDER
1. If the leak occurs at the key lock cylinder, remove or replace gasket.
2. After installing the gasket, seal around the key lock cylinder-to-deck lid area from the inside with silicone.