The service 4WD system light may illuminate with no fault codes stored in the final drive control module (FDCM). Our technicians tell us a software update for the FDCM is available to correct this concern.
A water leak from the sunroof and/or headliner is often caused by clogged or misrouted sunroof drain tubes. Inspecting the sunroof drain tubes should be the first step in checking for the cause of these type of water leaks.
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.
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.
Owners have reported several instances of the interior door handles coming loose or breaking. The factory door handles are part of the entire door panel, so an OEM or factory repair would require replacement of the door panel at considerable cost. There are multiple aftermarket solutions involving removing the door panel to repair the original assembly, or retrofitting an aftermarket interior handle to address the issue.
Vehicles with manual temperature control may develop a condition where warm air is coming from the instrument panel outlets when cold has been selected. Our technicians tell us a revised air distribution housing is available to correct this concern.
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.
Spark knock, noise/vibration/harshness, and/or Check Engine Light issues may develop. Our technicians tell us powertrain control module (PCM) software upgrades may correct these concerns.
A whine sound may develop from the power steering immediately after starting the engine at temperatures below 32 degrees. The repair may involve replacing the remote mounted power steering reservoir.
On Vehicles with a 4.7L or 5.7L V8 engine, the Check Engine Light may illuminate with code P2181 for a cooling system performance fault. Or technicians tell us that updated software for the powertrain control module (PCM) is available to correct this concern.
The fuel tank may become hard to fill and/or the fuel fill nozzle may shut off repeatedly while fueling. Our technicians tell us that various items including the fuel tank, vapor recirculation tube, fuel fill tube, or EVAP system canister control valve may be at fault. Proper diagnoses will be required to determine the exact cause of this concern.
Our technicians tell us that various driveability issues and/or illumination of the check engine or electronic stability program (ESP) warning lights may occur on vehicles with 3.7L V6 and 4.7L V8 engines. A powertrain control module (PCM) software upgrade is available which may correct these issues.
A squeak noise may be noted from the rear suspension . Replacement of the upper spring isolators and reorientation or the rear springs may be required to correct this condition.
A ringing sound may be noted from the driveshaft when shifting from drive to reverse and reverse to drive. The repair may involve replacing the automatic transmission output flange and applying "Stud N Bearing Mount Adhesive" to the transmission output shaft flange splines.
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