I have a 2000 Dodge Ram 1500 Electrical issue.

I have had the computer replaced, the alternator (3 times thinking they were bad) and the battery. When test driving it, all of the gauges go all over the place, the battery gauge drops dramatically, and all the warning lights come on. If I let it die, it won't restart. Can someone help? Thanks

 

Have you checked all the ground's? There's lots of them....

 

Does sound like it could be bad grounds. Check the one behind PS pump, the one form right head to firewall, from battery to fender, battery to frame...there are a number of them. Also, make sure that PCM is bolted securely. I think it grounds through case.

Make sure they are clean and tight/

 

Thanks, will be checking today.

 

Do you know what brand was used for the PCM replacement ?

 

Check the connection for the positive cable from the battery to the alternator & at the starter too. The PCM needs a clean mounting surface against the metal as well, scrub the mounting points clean with a wire brush or sand paper to make sure that is good.

 

Thanks, found the unattached ground. Now after a few days of testing, all is well except now it won't start. It will turn over, but that is it. Any suggestions would be greatly appreciated.

 

What are you missing? Spark, or Fuel?

 

Fuel.

 

Does the pump prime when you first turn the key to on?