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Here is an update. The mechanic says he has it fixed. He checked the voltage to the fuel solenoid as suggested and it was OK. While "open" he checked the solenoid and the plunger was not operating as intended. He replaced the solenoid and it runs like a champ again. Funny thing is that the...

Hi Bill, I also own a 1st gen dodge. A 1993 D250 w/ a 5.9L Cummins and auto trans. I live in Vista, Ca. Did you ever find a good mechanic for your truck in the San Diego area? Mine is having fuel supply problems and my mechanic is lost. Thank you, Bill Gallagher

Thanks for the reply. The mechanic said he had tested the electrical and found it OK. I'll ask for specifics of what was done. Just rebuilt my PCM about a month ago. Could it be the cause of the problem again?

Took it to a mechanic and they changed the pump and filter. They did not like the cheap lift pump that was on the truck and recommended changing it. Anyway, no change in the original problem. Now he wants to rebuild the injection pump and injectors. I am fine with that if it will fix the...

Thank you for the suggestion. Went to start it today and it seemed to run better at first. Got it up to 1500 rpm then it sputtered and reverted to the previous performance. I'll let you know if the filter fixes the problem.

Hi, I am not a mechanic... not even close. However, I like learning how to fix my truck when feasible. I thought I would ask some education before poking at things I don't understand. I need some help finding the cause of a recent breakdown. The truck died while on the road while doing about...

Thanks. I'll give it a try.

Here is an update on my truck. It is back on the road running better than is has in a long time. The problem was the PCM. I had it rebuilt at Module Experts in Fl. Very good service, good information, fast turnaround and it fixed my issues. Thanks to all that added comments to my post, your help...

well that is good to hear!

Thank you! I am sending the PCM in for testing / repair on Monday. Keeping my fingers crossed and rubbing the rabbits foot wishing for good luck. If they cannot rebuild the PCM, what are my options? Is there an after market replacement part? Thanks again for your advice. Bill

Thanks for the input. I thought I had it figured out this weekend. My money was on the thermal sensor (trans fluid temp) on my transmission. Tried to find a replacement only to learn they were discontinued some time ago. I bypassed the thermal sensor on the transmission with a resistor (paper...

I hope everyone had a nice fourth of July. Here s an update on my truck problems. I tested the CPS and all is good. It was old so I changed it and the harness out anyway. I swapped the AC relay for the auto shutdown relay, again with no change. I am being told to send my PCM in for testing...

Thanks, a testing we will go. I'll let you know what happens.

Thanks, I am aware of the sensor in the transmission. Had the transmission checked by two shops and both said it was working as intended. But, I am still suspect of the sensor, since it is the only thing I can find in my shop manual that would cause the problem. I might just replace it to rule out a...

Thanks for the input! The mechanic I have used to service the truck is of the same mind; thinks it is an electrical issue, not engine / transmission heat related. I will have time to work on the truck this weekend. I'll let you know if I have any luck Thanks again

I am looking for some help with my 1993 D250, 5.9 L Cummins. It is stock, no mods other than the rims. After 325,000 mi of trouble free operation I am having issues. After driving for 10 - 20 min the voltmeter drops to around 10 v. The A/C stops working and it will not shift into overdrive. At...

Thanks to all the helpful suggestions I was able to get my truck up and running for far less than the original quote. As suggested, I changed the fuel filter and verified that the lift pump was moving fuel to the injection pump. I put it back together and it would not run. I figured it had air...

Thank you! Thanks for the quick reply. It looks like I'll be testing the lift pump as suggested. I'll let you know how it goes. By the way, this is the first time I've used this site and WOW. Thanks again, Bill

Hi, I am looking for a bit of help in deciding what to do with my truck. It has around 300,000 miles on the engine but was running well until recently. It lost power on a small hill. Felt like it would not reach full rpm, dead pedal and only about 20 mph. Stopped the truck and looked under...