Warning: An assistant should drive the vehicle while the technician checks for the location of the reported condition.
Otherwise, personal injury could result.
Exterior windnoise is louder when the vehicle is driven with one or more windows down. Exterior windnoise occurs when air passes
over the body panels, the seams, or the openings. Use the following items during the test drive in order to aid in the detection of
leaks:
• Mechanic's stethoscope or heater hose
• Masking tape–51
mm (2
in) width
• Strip caulk
• A water soluble marking pencil
1. While driving, determine the location of the exterior windnoise by lowering one window at a time. If the location corresponds
with the condition in step 2, pull over and make a temporary repair with 51
mm (2
in) wide masking tape.
2. Tape over the gaps and the moldings one at a time. Test between each taping. Taping over the gaps and moldings will correct
the condition.
3. Temporarily repair the condition with masking tape. Adjust the tape when needed.
4. Continue testing in order to determine if the noise has been eliminated or other leak areas exist.
5. When all the reported leak conditions are located, make permanent repairs using the proper alignment techniques and the
sealing materials.
© 2011 General Motors. All rights reserved.
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CHEVROLET SONIC 2012 BODY REPAIR MANUAL
