The idle speed when in park and in gear jumps up and down as if I were pushing the throttle.
U need a fuel control actuator. It's on the back of the injection pump
SOURCE: dodge ram 1500 engine rpms surge at freeway speed
those sensors could cause the issue, clean the MAF 1st, also clean the idle system using the following procedure, the IAC can cause cruise surge. I use this to cure these problems all the time.
Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve (IAC) and throttle valve, they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
SOURCE: water pump replacement procedure 2005 2500 dodge with cummins diesel
take off old water pump. clean up area on the motor real good.do this by using a scrapper and cleaning slolvent. when thats all done put hi temp silicon on the block water pump and the put gasket on silicon. let dry for like five minutes. put in on torque bolts to specs.
SOURCE: Charging problem on 1996 Dodge Ram 3500 Cummins Turbo Diesel
I had the same problem on a 94 dodge with the cummins. It seems the crank sensor that reads from a notch on the harmonic balancer was the problem Without this sensor reading that the engine is running the alternator wont charge. Possibly the same problem with yours
SOURCE: where is oil pressure sensor located on 2001 dodge 2500 cummins?
Hello mhak330: My name is Roger and I can give you the answer to your question. Locate the ECM on the drivers side of the engine.look for the bottom bolt holding the ECM. To the right of the bolt you should see the oil pressure sender unit. Should you need further help please just ask. Please rate the quality of your answer. This way we know you received helpful information. Thank You for using Fix Ya. Roger
SOURCE: abs and park brake light came on same time
Its either the speed sensor on the rear differential or your steering wheel is all the way down pinching a wire in the harness. I have had both problems. Raise the steering wheel and if that does not fix it then its the speed sensor(might be called something else) but it is on the rear diff.
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