Ford 2003 Mustang Workshop Manual page 3596

SECTION 501-00: Body System — General Information
DIAGNOSIS AND TESTING
Body System
Inspection and Verification
Leaks
NOTE: Trim will reveal the location of most leaks.
1. Remove any trim or carpet in the general area of the leak.
2. Road test or water test the vehicle.
3. Inspect for a dust pattern around the area in question. Inspect for water paths near and above
the area in question.
4. Some leaks can be located by placing bright light under the vehicle, removing any necessary
trim or carpet, 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 of the windows closed, the radio off, the
blower motor off, and all of the ventilation ducts open.
Most wind noise leaks will occur at the door and window seals or at the sheet metal joints in the door
or the door opening.
Symptom Chart
Symptom Chart
Condition
Dust and
Water Leaks
Dust/Water
Leaks at Floor
Pan and
Grommets
Door Drain
Holes
Collecting
Water
Possible Sources
Body sealer missing.
Opening in weldings
or body joints.
Components not fully
installed.
Components missing.
Components
damaged.
Missing or damaged
plugs and/or
grommets.
Holes clogged with
mud or road tar.
2003 Mustang Workshop Manual
Action
REMOVE trim panel. CHECK
for leaks and SEAL with
appropriate sealer. ROAD
TEST or WATER TEST for
leaks. RECHECK for leaks;
USE light under the vehicle
with trim removed. CHECK
interior of body at joints and
weld lines.
CHECK plugs for proper
installation. REPLACE if
necessary.
CLEAN drain holes of dirt and
foreign material. CHECK drain
holes regularly. TEST the
system for normal operation.