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2nd Generation Dodge 24 Valve Powertrain

This is a discussion forum of the 1998.5 to 2002 2nd Generation Dodge Ram Trucks with 5.9L Cummins 24 Valve Turbo Diesel power train and drive line system. This includes all sub-system including wiring, fuel, oil, exhaust, air, transmission, computers and sensors.

  1. hello everyone this is my first post lots of great info here! i have read thru much of the site but can't figure this truck out i have an 02 6 speed with codes p0237 and p0112 i have gone thru the wiring replaced the map twice first new one was bad out of the box. not funky readings on anything i have done all the testing procedures and can't find anything off. i clear the codes and they instantly come back as soon as i start the truck i completely removed my edge box and truck ran worse extremely doggy with it on the truck at highest setting the truck is still a dog but driveable i cleaned all grounds tried an apps reset with no luck checked and triple checked all connec…

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  2. Started by AGPTurbo,

    So after hauling home a new 5th wheel project today, I noticed that my new transmission gauge seemed inop. I tore down the dash and found the tap splice I used may have had an intermittent connection ( I hate those things) so I switched out a butt connector and that seemed to fix it. As I was there putting the dash back together, I figured I'd check the trouble codes for fun. It spit out the following: P0622 P0743 P1693 P1765 Now I had noticed wayyy back in fall that the trans had shifted in and out of OD on the highway a few times on a few separate days but quit. I have since then installed a lockup switch on the dash. Would the lockup switch cause the co…

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  3. Started by yotehunter,

    Any one had these 4 trouble codes at the same time? Truck will not start. I have not had time to look the truck over yet. so i don't know battery voltage yet or if i have any lose or broken wires, plan on looking it over this afternoon when it warms up a little. Thanks for the help p0382 p0380 p0215 p1689

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  4. Started by dobienut,

    A few weeks ago, actually the day after that I had my flash done for high idle , I was going to town and experienced dead pedal for about 10 seconds and it threw a P0237 MAP Sensor Voltage Too Low code and tripped the engine light. This morning on my way to town I once again got hit twice with it lasting about the same amount of time, maybe a bit longer the second time. All three times were into a hill and I want to note that all times this happened was on a relatively cold engine.This morning it never tripped the engine light and I checked and I have no codes at all. First time I thought maybe it was map sensor just from where I had unhooked my programmer for getttin…

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  5. Started by Big Bird,

    I am having an issue with my truck not wanting to start when it is cold out. symptoms are below say 40-50 degrees the fuel pump will not come on, I get a CAD communications error, I have no gauges, no wait to start light, and I do not hear any relays click when I turn on the key. I have not seen any codes using the key trick. now here is the fun part. If I plug the truck in for a few hours it will start just fine and everything works properly. Truck has new batteries, and the connections are tight. Should I be chasing grounds with these symptoms, or should I be looking for a cold solder in the ECU, or am I just chasing my tail without diagnostic equipment to see what …

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  6. Started by RAD,

    MM suggested I post up after speaking with him on the telephone yesterday afternoon. this all started after some cold weather here. leaving work one day and just died on me a few times, hard to start and then finally nothing. here goes working on a 1999 2500 5.9 l . it is hi-line w/auto transmission. key fobs never worked for me. trouble is it is very very hard to start. finally got it to run yesterday, let it run for about 5 minutes and turned it off. it didn’t want to start again. then when turning the key to start and run position, no lift pump noise. i waited 30 minutes and cycled the key again and heard the lift pump running. …

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    • 148 replies
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  7. Started by Timothy,

    Please Help!! I have a 2001 Dodge Ram 2500. It has a 5.9 Cummins Turbo Diesel engine. The problem occurs when engine is cold. I thought it was only in winter like now. But it also happens in summer just not half as bad. when engine is first started cold I get white smoke out of exhaust and it stumbles for about a minute in summer. And if left unplugged (engine block heater) in winter it will smoke bad and stumble for like 5minutes!! Then when it warms up enough to drive it wont go above like 20 30 maybe 40mph for like 2miles or more. Seems like until engine reaches a certain temp.?? Anyway then finally everything will kick in and truck will run and drive great!! I was tol…

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    • 82 replies
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  8. Hey ya'll,i am back with an update.:banghead: So after a year of having no symptoms since 1/28/11, i am having symptoms again. Not really sure what is going on. I have not gone thru any of the routine troubleshooting steps just yet. I am back for some more schooling!!!! So now the situation is that i am having dead pedal above 70 MPH. I can punch the gas on the highway, tranny goes thru its automatic gear shifts, than if i try to accelerate above 70, nothing. --- Update to the previous post... please read other thread!

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  9. Hello all, I am new to this site and wanted to kick something around maybe get some feedback and troubleshooting help. When i would turn on the truck, i would usually let it idle for awhile. I would put it in “D”, push on the gas, the truck would start to travel, than it will suddenly get the case of the "dead pedal" and then kick into gear. This started in a sporadic fashion. It then led to a daily ritual to get to work having to rev-up the engine in order for the truck to move. I have briefly explained below how I got to this point. The beginning of this story is as follows: I initially replaced the fuel lift pump when I first got the signs of white smoke c…

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  10. P1765 Transmission relay open or shorted. So I remember that the Previous owner told me about a Torque converter Lock-up switch. He said that you could use it to lock the converter in second gear while pulling a grade. So I assume that the Jumper wire has something to do with that? Mopar1973man told me about a Mystery switch that someone did, and used an old High Beam floor switch but I can't find that article. If I'm going to have to suffer the effects of the jumper then I should reap the benefits. If someone has a link to the rewire please share it with me. Thanks Michael

  11. Started by 96ram1500,

    I am relatively new to the forum but have heard of Moparman and used his wiring maps for a while. They are very useful. Very good job. My throttle surging issues are caused by varying voltages to, and subsequently from, the APPS. I have the same issues with the alternator and/or PCM disconnected. The issues are as follows: -Truck starts right up but idles erratically -engine idles fine with ECM data lines disconnected from VP44 (wires removed from connector) -engine idles fine with APPS disconnected (no fluctuations in incoming voltages) -40 HZ (or thereabouts) "signal" in power and ground with and without alternator (oscilloscope screenshots ava…

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  12. Started by trreed,

    This thread is where I will post updates of my modifications, issues i've had, and potential upgrades I'm considering. This page is dedicated to @TFaoro, because without him my truck would be bone stock still.... To start off, today my VP died. It took me by surprise, as it gave no indication there was an issue. But, it threw Death Code P1691, and that's that. Good thing it died before I bought tires. Is DAP everyone's first choice for a new VP?

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  13. Started by ruben121,

    So I've always had a little miss, I would noticed it with my edge jammers 150s with the comp on level 5 at WOT, not bad enough for me to worry about. But I upgraded to a quadzilla and also got 7x.013s , the miss turned into a very aggressive buck, it's literally breaking my dash. I notice that with the quad on level 0 it doesn't do it but with the quad on at any other level it does it, the more aggressive fueling the worse and it even does it on level 2 with less power than stock , as soon as I put it on level 0 I have no buck on my throttle. Any ideas would be appreciate it to help me tackle this some of the mods are SO pump, t3 66/74/…

  14. 2001.5 Dodge 2500. It's parked in stepdaughter's yard in Attleborough, Ma near Pawtucket, RI. I have a couple of days. It's leaking coolant at front of engine. It's pretty wet but the center of the wet is the water pump. I don't know who to take it to that I can trust. With my MS, I can not do my own work.

  15. truck cranking no start, no bus,wait to start light stay on very dim. I have been chasing this no bus issue and as soon i unplug ecm everything comes back to normal no abs and gauges start back working, so i decided to take ecm off and was a ratling noise comming from the inside i oppened an one of those capacitor came unsoldier so i soldier back put ecm back and no work! still shows no bus wait to start light dim and no gauges working so I decided to send ecm to Auto Computer Specialist and they told me my ecm was fried no fixing so i need a new one they want 1599 since my ecm can not be repaired does not count as core. I found a cheaper one somewhere else…

  16. Started by mrtowman4u,

    Customer called me yesterday asked if I could tow their truck in and see if I could figure out what's wrong with it! It's a 99 2500 2wd auto with stock 24v new lift pump and reman vp44. The truck starts and lopes hard with no throttle pedal. No engine codes. Anyone have any ideas? The vp44 was put on about 4 months ago and it's been sitting at another diesel shop for 3.5 months. I don't know where to start!

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  17. Started by Cumminskid,

    I have a 2001 dodge cummins. When I turn the key to the on position I have no wait to start light and hear a click in my fuse box. I have went through and checked wires and fuses and have had no luck

  18. OK I got time to do some digging to update I was driving down the road and it died would restart only idle rough no thottle response, but after starting four times doesn't idle anymore. Codes were 1688/1689OK 20 psi going into the pump, fuel spits out at injecter line( don't know how much) put a different injecter pump in that I had and it still is the same way it was after it died. Cleared codes and none have came back. Any ideals where to go next, thinking start at the batterys and check every connection I can, will have to take to a dealer next don't know where to go. Thanks for the help:banghead:

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  19. Started by Millfire517,

    Was driving down the road and what I thought was an inch of water turned into a foot or more. Truck just shut off immediatelyand none of the gauges work and my edge doesn't communicate. how long till the stupid ecm dries out? At least I'm pretty sure that's what happened. 98 24 valve

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  20. Running fine, turn corner push to 1/4 throttle instantly dies coast to shoulder. Sits for about 10 min to give a once over. turn the key it rough idles for 2 min then smooths out. It continued to do this rough idle start & then smooth out. Towed it home. Changed fuel filter, hooked up my Smarty to read codes. (7) codes P0251 Fuel Inj pump fail (replaced lift pump 6 months ago carter) (I can hear it run when bumped) P0252 Inj pump fuel metering P1688 Internal fuel inj pump controller fail P0254 Fuel Inj pump mech fail fuel valve P1693 Generic fault indicating fault in bus or PCM/ECM interface P0602 Control module programming error P0…

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    • 16 replies
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