2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Problem: my truck has been lacking power and seems like it's mis-firing more now. It just started backfiring under a load. Not all the time, just when I take off from a stop and the RPMs drop to 500 (manual). I've heard it could be the fuel pump, but I'm not sure. Plugs were replaced with champion truck plugs, problem still persisted. Changed the plug wires to mopar performance ones, still there. If it is the fuel pump, where is a cheap place to buy it? So far, the only place I've seen is the stealership.
Oh, one more thing to add. When the RPMs are up around 3-4, it doesn't do it (at least that I can tell). Under 2k and especially under 1500, it does it big-time. Starts bucking like wild. Haven't ran a fuel pressure check on it yet, but I'm pretty sure the fuel filter/pump is the original one (165k).
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Yeah, no distributor on this pig. Just 2 coil packs on the pass. side valve cover. At first I thought it was an ignition problem. But after gapping the plugs correctly and changing plug wires, I have reason to believe it's a fuel problem. Just wanting to make sure, and get some other opinions.
If it is the original fuel pump you are overdue to changeit. I think they are to be changed every60-100kbecause the fuel filter is attached to the pump. Mine showed up going up a hill under load and the engine started bucking.
Great site. This is my first visit. I have a 98 V10 with 75k miles. It's my commuter truck. Today I noticed a loss in power going up a hill then an odd idle at park. Basically everything is bone stock and original. Sounds like it might be fuel related. I'll check pressure tonight. Any other suggestions?
Checked the pressure tonight - 50psi. The book says 35-45 psi and if higher, the regulator/filter unit might be the problem.