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Problems for specific Dodge Ram 3500 years:

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Most reported 1994 Dodge Ram 3500 problems

 

Verified for the Dodge Ram 3500

The AC/heater (HVAC) system may unexpectedly switch to the defrost mode when accelerating. This system is operated by engine vacuum and should be inspected for any vacuum leaks if this problem develops.  There is also a revised vacuum check valve available to address this concern.

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Verified for the Dodge Ram 3500
Oil or coolant may seep at the timing cover gasket; replace the gasket with a revised gasket.
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Verified for the Dodge Ram 3500

The intake manifold gaskets may leak. Coolant loss may be noticed as coolant leaks into the engine oil and/or there may be a rough idle or whistling noise. The intake gaskets need to be replaced if they are leaking coolant internally to prevent engine damage.

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Verified for the Dodge Ram 3500

On the 3.9L V6 and 5.2L V8, an intermittent connection in the crank position sensor wire connector can cause poor engine performance or the engine may crank but not start.

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Verified for the Dodge Ram 3500

If the engine is difficult to start or cranks but does not start, it can be caused by a leak in the return side of the fuel system. This type of leak can allow air to enter the injection pump resulting in starting issues. A rubber hose on the back of the injection pump, connecting the pump to the steel hard line, that can be the source of this type of leak.

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Verified for the Dodge Ram 3500

On the 3.9L V6 and 5.2L V8 it is often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.

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Verified for the Dodge Ram 3500
Low oil pressure at idle or illumination of the oil pressure warning light may be caused by the oil pressure relief valve. If the oil level is good and the low pressure is verified with a gauge, the repair may involve disassembling and cleaning the relief valve.
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