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.
Resources for the Repair and Maintenance of your 1994 Dodge Ram 3500
1994 Dodge Ram 3500
1994 Dodge Ram 3500 Problems
On the 3.9L V6 and 5.2L V8, 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.
On the 3.9L V6, 5.2L V8 and 5.9L V8 the Oil leaks commonly from the valve cover gaskets, intake manifold gaskets (front and rear), timing cover gaskets, distributor O-ring, and the rear main seal area. Using fluorescent engine oil dye can be helpful in determining the source(s) of the oil leak.
On 3.9L V6 and 5.9L V8 engines, the intake manifold gasket may leak and cause increased oil consumption and a spark knock during acceleration; the gasket should be replaced.
One the 3.9L V6 and 5.9L V8 the carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.
1994 Dodge Ram 3500 Recalls (Recent)
1994 Dodge Ram 3500 Questions and Answers
The motor runs good till you start to take off frome a stop then it starts missing bad.
When I go 45-50 the truck has a sort of bounce to it like really rough road why?
Every time i can go down the road it dose good for a few minuts an my injector pump starts ticking in the governor housing and my gas gets stuck an it loses power an it dies
going down rpode gage will drop then at idle rise not my truck i am a big ri machanic but not much time with thesr small motors here no disturbing noisie when gage drops hes chekrd sump csreen was...
i'm looking for a egr valve vacuum selenoid. everybody wants to sell me the valve and selenoid together. the valve works fine. can i get just the selenoid?