20 Most Recent 2004 Dodge Ram - Page 2 Questions & Answers

I would think the idle speed control valve is defective.

Sounds like the previous owner patched a hot wire to the rear lights instead of fixing the problem. Someone will need to get the factory wiring diagrams and start backtracking from the lights to the dash to find out what is wrong. You may need a shop manual to get the diagrams you will need. Most repair books do not go into wiring that deep for the DIY.

Check rad cap & check your rad hoses for one that may feel soft & collapsing & restricting flow under higher speeds. Sometimes you can see it **** in when you rev engine in park. Especially lower hose.

The drivers buckle has a pair of wires under the seat.I believe the switch in the buckle is normally open,so you should be able to just unplug the buckle to disable the alarm.(not sure why you want to do this,but I'm sure you have a good reason)

chech for loose wiring on the ignition. remove the steering cover and with key on engine off stand out of the way of airbag and wiggle the electrical connector and see if u can duplicate problem also check 4 chaffed wiring