A ticking type noise may develop, most noticeable when the engine is cold. This is commonly caused by one or more broken exhaust manifold bolts. Our technicians recommend to replace the broken bolts as needed, also the exhaust manifold gaskets should be replaced at this time.
A rough engine idle and/or engine stalling condition may develop, often associated with illumination of the Check Engine Light and an exhaust gas recirculation (ERG) fault code stored. This is commonly caused by a clogged EGR tube. The repair involves cleaning the clogged EGR tube.
Some vehicles may develop a musty odor coming from the HVAC system, Dodge has issued a cleaner/disinfectant and a coating for the evaporator designed to inhibit bacterial growth.
The thermostat may fail to close completely, causing the Check Engine Light to illuminate. This problem will prevent the engine from reaching normal operating temperature; a new thermostat should be installed.
Some transmission related Check Engine Light problems can be corrected with a software update to the Powertrain Control Module (PCM). Some repairs may also require the installation of revised parts.
On vehicles with a 3.7L V6 and 4.7L V8, water may pass by the cowl screen (at the base of the windshield) in heavy rain or a car wash. This can cause the Check Engine Light to illuminate. A revised cowl screen may be available to fix this problem.
If the engine does not crank (or cranks but won't start), the wireless control module (WCM) may have locked up. This is due to static discharge through the ignition key. A revised model should be installed, but simply disconnecting the negative terminal of the battery for thirty seconds will temporarily reset the module so you can start the car.
Poor AC performance or no cold air blowing from vents is commonly caused by a refrigerant leak from the AC condenser . Road debris like rocks or pebbles can damage the condenser tubes.
With the Multi-Displacement System (MDS), repeated Check Engine (MIL) light illumination for low oil pressure may be solved with a software update to the Powertrain Control Module (PCM) .
Front and rear differential pinion seal leaks are common. A leaking pinion seal will require replacement.
Rerouting the ignition coil wire and spark plug wires can help solve a misfire and/or surge problem that occurs at approximately 45 mph. A service bulletin was published that outlines the specifics of the repair. It states the rerouting procedure should be performed before other repairs are done for misfires, surging or spark knock.
If the transmission delays initial gear engagement after being parked overnight or longer, it may be due to a suspect transmission cooler return filter. If the transmission was recently serviced and the part number for the cooler return filter contains an "AB" suffix at the end, a new filter should be installed.
A whining noise heard driving at freeway speeds (more than 55 mph) can be normal noise from the rear axle which is being transmitted through the body. A body/frame damper is available which may help with this concern.
The Check Engine Light may illuminate for many different reasons, some of which may be corrected by updating the software in the powertrain control module (PCM).
The transfer case in the Dodge Durango has multiple gear ratios, which can be selected by moving the switch in the cabin to 2Hi, 4Hi, or 4Lo. It has been known to shift to 4Lo without warning, at any speed, and whether the vehicle is on or off. If this occurs at highway speeds, the result can be catastrophic failure of the transfer case.
This is caused by a faulty four wheel drive shift motor, selector switch (in the cab) or the wiring between the two. The most common cause is the transfer case switch, which is an electric motor mounted on the transfer case.
To correct the issue, inspect the wiring to the transfer case switch motor for damage, and replace the shift motor if needed. Disconnecting power to the shift motor will lock the transfer case in its current setting.
On the 3.7L V6 and 4.7L V8, Water may enter the spark plug wells and cause a Check Engine (MIL) light . A seal kit for the ignition coils will prevent further water entry.
Under certain conditions, some models may shift into neutral even though reverse is selected with the gear selector. A software update to the Powertrain Control Module (PCM) will allow reverse engagement as long as the transmission has sufficient hydraulic pressure.
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