SOURCE: 1999 dodge ram 2500 5.9 cummins diesel
Check the fuel pressure at the filter. Odds are the lift pump, located below the filter, is toast. Continual cranking of the motor with a bad LP wil cause the injector pump to heat up and burn out. Replace the LP and fuel filter. Bleed the system by cracking the inlet to the injector pump and bumping the enigine over so the LP will run. Once you have fuel at the injector pump, crack injectors 1,3,and 4. Crank the motor for no more 6 or 7 seconds at a time until it turns over. Give the pump time to cool for a couple of mintues between cranks. This process is easier with two people, one to crank and the other to watch for fuel and tighten the injectors once it starts. If the injector pump is fried at this point from cranking with no fuel, the motor should idle, but will stumble all over itself when the throttle is applied.
-Brandon
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: Trouble code P1740 on 1999 Dodge Ram 2500
I had the same code on my 2001 dodge 2500. The truck wouldn't shift from 3-4. I pulled the trans pan off and replaced a broken spring ($2.00). It is behind a thin plate with 3-4 small torq screws. You don't have to remove the valvebody. Only took me 45 minutes to fix.
I would like to give thanks to Jeff Russel from Teal automotive. He said this is a very common problem. He sells any part for any automatic Transmision and his prices are very affordable.
Here is a link to the website.
http://www.tealautomotiveinc.com/
Hope this helps.
SOURCE: 1999 DODGE CUMMINS SHUT DOWN FAULT CODES p1689, P1688
P-1689 NO COMMUNICATION BETWEEN ECM & INJECTION
PUMP MODULE
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