Problem Reports

3.7 V6 and 4.7 V8 engines may develop exhaust leaks due to broken exhaust manifold bolts. Exhaust manifold gaskets and bolts should be replaced as necessary.

Delayed engagement of the automatic transmission may be due to a faulty internal cooler return filter. Our technicians tell us all cooler filters with the "AB" suffix on the part number are suspect and should be replaced.

An abnormal noise may develop from the HVAC blower motor as a result of debris ingestion. After any debris is removed, an air baffle screen can be installed on the inlet opening under the cowl grill to try and prevent a re-occurrence of the problem.

EGR valve position sensor fault code(s) may be stored in the powertrain control module (PCM) resulting in illumination of the Check Engine Light. A PCM software upgrade is available which may correct this issue.

A significant vibration with moderate braking at highway speeds may develop on vehicles stored outdoors for 3 months or more. This condition may be due to corrosion on the brake rotors. Our technicians tell us that normal driving for about a week should eliminate this issue.

Use of a cell phone with the vehicles radio on can cause a buzz or clicking sound from the radio speakers. It is recommend to move the cell phone away from any components of the radio system if this occurs. Replacement of radio system components will not correct this concern.

Some vehicles may experience a high pitched whistle under light throttle conditions. This can be corrected by resealing the throttle body at the intake manifold using a small amount of rtv sealer.