Help dodge ram

Janet Philpot

Asked by Jan 14, 2016 at 09:58 AM about the 1998 Dodge Ram 1500 2 Dr Laramie SLT Extended Cab LB

Question type: Maintenance & Repair

My truck misses and backfires while driving I can
give it gas it smooths out  few mins later it does it
again I have changed plugs,wires,dis cap,coil,rot
button,oxygen sen, what is my problem

7 Answers


One of the problems is you have one of the most troublesome vehicles out there. Any way, fuel injectors sound like they may be dirty, there are places that can clean them, otherwise some fuel injection cleaner threw the gas. Fuel pump could be another, fuel pressure should be checked. Timing is associated with back-firing, possible cam sensor, maybe have the vehicle scanned for codes to help point you into the right direction.

Janet Philpot

Thanks I was thinking crank shaft sensor

Janet Philpot

It scans as oxygen sensor but yea I'm sure that wasn't right cause I replaced it


Still could be may other things yet tho, have the timing checked also.


The codes should have ben reset then to see if they repeat. The codes don't lie. But on that, do you remember what the code was? Sure the 02 sensor could have ben bad but again there are many other reasons to cause that code.

Janet Philpot

No they didn't tell me the codes just tested it said oxygen sensor..yea ur right so many things could be wrong


Possible causes - Faulty Front Heated Oxygen Sensor Bank 1 - Front Heated Oxygen Sensor Bank 1 harness is open or shorted - Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection - Inappropriate fuel pressure - Faulty fuel injectors - Intake air leaks may be faulty - Exhaust gas leaks........................................... So I think you may have a fuel system issue. Start by having the fuel pressure checked.

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