Operation CHARM: Car repair manuals for everyone.

Exterior Windnoise



Exterior Windnoise

Exterior windnoise will be louder when the vehicle is driven with 1 or more windows down. This noise is caused by air passing over the following locations:

* The body panels
* The seams
* The openings

Ensure that the technician uses the following items during the test drive in order to aid in the leak detection:

* A mechanics stethoscope
* Masking tape-51 mm (2 in)
* Strip caulk
* A china marking pencil

Notice: The air hose test should only be used on fully cured urethane adhesive. Otherwise, damage to the urethane adhesive bead could result in additional leaks.

While driving the vehicle, determine the location of the leak by lowering 1 window at a time. If the noise can be heard with the door window lowered and the vehicle is being driven, the noise is windrush.

In order to locate a windrush, tape over various moldings and gaps 1 at a time using 51 mm (2 in) masking tape, until the noise is eliminated. When the area causing the windrush is taped over, the windrush should no longer occur.

When you locate all of the reported leak conditions, return the vehicle to the shop. Make the permanent repairs. Use the proper alignment techniques and sealing materials as required.