2003 Dodge Ram 3500 Problem Reports

Most Reported 2003 Dodge Ram 3500 Problem Reports

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If a Check Engine Light illuminates indicating leak detection pump (LDP) failure, the cause is often pinched or disconnected vacuum lines to the pump. Vacuum lines should be inspected before replacing the leak detection pump. Contamination (carbon or debris) in the pump can cause failure and any hoses should be cleared before a new pump is installed.

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 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.

A vibration or shimmy felt in the steering wheel when driving over rough roads may be caused by a worn steering damper and tie rod ends. Also be sure the tires are correctly inflated, alignment is within specification and suspension components are tightened properly.

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.

The throttle body may malfunction in very cold climates causing symptoms at engine start up. A throttle body causing problems will require replacement.

A new overrunning alternator pulley often helps with drive belt squealing or fraying. Pulley alignment should also be inspected when the belt frays or squeals.

If it feels as though the steering wheel has a small amount of play (moves toward you when pulled), a new bearing retainer may be needed for the steering column.

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 track for the power seat may need to be replaced if the seat rocks when the vehicle accelerates or slows down.

A revised return spring is available if the cup holder binds or is slow to open.

A new lower secondary door seal is available if clothing is getting dirty when entering or exiting the truck. Dirt or mud may build up on the rocker panel below the door.

Long cranking times in cold temperatures (below freezing) may be solved with a software update to the Cummins ECM.