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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. Started by wil440,

    Ordered both a Quad and Assassin last week, just waiting for them to arrive, it will be an ouch on the import duty and tax into the UK but thats life i'm afraid. Going to fit the Fuel transfer pump first, looking forward to getting shut of the electric thing. Not interested in getting on the more power bus with the quad just want to build a good mpg towing tune thats clean. One city 15 miles from me is going carbon neutral within the next few years which means a total ban on diesel vehicles, this can only get worse here so clean as me thinks. If that fails sell the cummins back into USA and spend the £ on my gas ram ☺

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  2. Started by Ede,

    My 1999 ram 2500 has a hard start, no start condition I have to unplug the pcm and ground wires to battery with the key on to get it to start and sometimes it goes to wto at start u. Any help would be appreciated

  3. Started by Octafish,

    I have a suspicion I may have VP problems. But no codes with a good scanner. I know these pumps can be tricky. Truck starts immediately and quits after a second. Try and start 2nd time - does the same thing. 3rd try, finally starts and stay started but runs rough for a 7 seconds then clears up, runs fine. Drivability is normal . Point nose down hill - no improvement. I installed a Fuel Boss about 500mi ago and it has been great. Cleaned pressure valve in pressure line (included w/Fuel Boss plumbing). New crossover tube O-rings and injectors 1500mi ago. New return T O-rings, new banjo washers. …

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  4. Started by Bafazane,

    Hi Folks, I want to preface this by saying I searched this site and many others without finding satisfactory answers. The issue is that my clutch does not appear to be disengaging when I depress the pedal. The symptoms began yesterday with a sporadic increase in effort to get it into gear when shifting. Today, over the period of about an hour of mostly easy highway driving with a few of stops, the symptoms persisted and worsened until the clutch would no longer release and I had to start the truck in gear to get moving and float gears to shift to get the truck home. What was weird to me is that it was inconsistent in the behavior, mostly the clutch…

  5. Started by Scarecrow,

    Okay, just tried the scanner we have at the store here (innova 3100), and it won't read my truck. What are you guys using for scanners for our cummins trucks?

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  6. hey guys i have a 1999 dodge 2500 24 valve , at times if your are in the throttle above 2000 rpms the engine just cuts power then u have no pedal response even if you push it all the way down , but how ever if u let up for a split second the power comes back like nothing has happened at all. i do have the code p1693 in the computer i have not tried clearing the code yet . if any one can point me in the right direction please let me know thank you.

  7. Started by Octafish,

    What's the procedure ? I'm guessing just pull the bottom pulley and pump mounting bolts. Then tilt the pump down to get the drill chuck on the shaft? Do you need a 3/8" or 1/2" drill? Spin clockwise? Or do they make a pulley you can put on a drill and use the belt to prime?

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  8. Started by ColoradoColt,

    Installed new edge Ez since my last one quit working. Now I have a problem where it goes into limp mode after too much boost I think? What’s causing this? Stuck wastegate?

  9. Started by Bloom99cummins,

    I went to smog my truck in CA and when the tech plugged in to the OBD2 his computer could not communicate with my truck. He asked if i had a tuner or something on the truck. After 3 shops all unable to read the OBD2 i am left scratching my head. Would flashing ECM or PCM help? Need to pass ASAP! The truck has never been tuned. but did have the ECM reflashed in 2019 by Auto computer specialists truck runs great. no codes. Any help would be great.

  10. Started by UnrulyDually,

    So the cap on the water/fuel separator keeps popping off. Replaced cap an it blew off again. So replaced filter an cap this time an made it a few more kms before popping the threads on the cap an its leaking again. Any ideas???

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  11. Started by ColoradoColt,

    So recently I’ve been noticing when i leave in the mornings for work after letting my truck warm up, my coolant temp is never past 165. No matter how long I let it warm up. I Was hauling my horse trailer this morning it was 34° And the coolant temp never reached 190. Maybe touched it once on an uphill but otherwise no. Is this a problem? Stuck thermostat?

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  12. 1998.5 24V It starts fine and quick, runs strong then the fuel pressure will fluctuate and it stalls. It will not restart. I found the fuel overflow valve is getting stuck in the full open. Replaced the fuel overflow valve but it keeps happening. If I push the ball on the overflow valve it will start again.

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  13. Started by Gregturley,

    Found a 2nd hx35 that needs rebuilt. $50 + $30 shipping. Just bought a supposedly 50k zero shaft play hx35 but haven't received it yet. Would it be worth getting the 2nd one?

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  14. Started by John1997,

    Can I use the moparmans high idle switch with the quadzilla xzt? I want the 3 cylinder high idle for my truck.

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  15. Started by Blueox01,

    Curious if anyone could tell me if there would be any difference between a 99 ECM vs my 2000 ECM It it came off the same engine I.E. H.O. 6speed? Reason, I'm getting back into hauling trailers as soon as my freshly fused ankle allows me to, and FMSCA might require me to have an ELD(electronic logging device) not sure, because right now towaway operators are exempt for now, but 1999 and older engines exempt, not that I'll be worried about HOS but just an added extra monthly cost.

  16. Started by BDK,

    I have a 2001 (2nd gen. Cummins) 2500 4x4 SRW with the CAD system on the front Axle and needed a few questions answered. 1st post BTW and just joined..... The PO has disconnected the switch for the 4x4 at the CAD (the connector that plugs into the CAD). The switch/sender is still connected to the CAD but there is no connector anywhere NEAR this. I've looked up and down and it just is not there, so my question is, where does the connector plug into that runs to the CAD (i.e. as in where on WHICH wiring harness is it Tee-d off of)? Can a replacement be ordered and then just plug into the wiring harness on one end and the CAD switch on the other? Any pics showing both end…

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  17. Started by Ronniemx3,

    I have had this issue for around 6 months or so. I will start from the beginning... Rebuilt transmission 1 year ago. 5-6 months later no lock up. Tested alternator Cleaned grounds Monitored transmission via snap on scanner Wired in lock up switch Added noise isolator Tested continuity on lock up cable to PCM. Tested apps Changed VB Changed solenoids Changed OSS Tested brake light switch All came back good Trans doesn't slip TC when it was locking didnt slip at all TC would lock up only if coasting whilst feathering throttle around 5% tps input. it would…

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  18. I’ve been trying to figure this out for a couple days now. I’m having troubles with truck running when pcm is plugged in. If I unplug C1 It will start. If I unplug C3 it will start but say I have C1 plugged in and plug C3 in kills it immediately. Same if it’s other way around. Could this be due to security? Please help

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  19. So I have a 1999 24 valve all stock no tuner.. and I can start the truck and it fired right up and it will idle around 800 or so rpm and when I hit the throttle it will idle at 1100 and at highway speeds the truck will buck and if I let off it’s fine until I get on the throttle again I just replaced tps/apps and set the correct voltage and done the pedal thing the map and iat sensor are showing they work on my scan tool but no codes I’ve only owned the truck for a couple weeks and the vp44 has a sticker on it and it looks brand new all my ground are good but idk what to do.....

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  20. Started by pepsi71ocean,

    So I'm in the process of putting the truck back together and I ran into an issue. My fass draw straw is oof the old design, the new fittings I got for my fass don't work with the fass95. So I was going to take the inner during on the draw straw and use that on the fass pump. But that leaves my draw straw. I was looking at getting the Fass Sump kit since it allows you to draw from the inside of the bowl. Being here in Jersey I don't foresee any issues with hitting brush, etc that could cause it it be knocked out. I refuse to use a sump that requires an external hose, as I'm currently dealing with an enlarged hole for my old draw straw. If your won…

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