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  1. 3rd Gen. Powertrain
    Early 03 Cummins with 47re and for some reason it'll hold the gears perfectly and shift normal until like 160 ish degrees and above it then holds first until 2500 rpm or sometimes until 3000 and 2nd gear is a similar story as well but as soon as it gets to 3rd and OD it's fine. It also drops...
  2. 3rd Gen. Non-Powertrain
    Hey y'all, I've got a crank no start with NO BUS on the odo. I have 12V to the 2 and 22 pin on the C1 of the ECM, the 31 and 32 grounds look ok on the C1, I think the orange black stripe on the C2 is supposed to be the 5V for sensors but its blowing 12+. Cluster test is fine with signals/hazards...
  3. 2003 & Early 2004 Only Discussion
    Long story short a shop replaced the engine coolant sensor cause it was leaking when it went in for trans work. Ever since the sensor has been reading 60 degrees cooler than it actually is. So around operating it reads 125 degrees. From my understanding 03 has a different sensor than the years...
  4. 2003 & Early 2004 Only Discussion
    I have an 03 that I did a manual swap to. Can I delete all of the factory trans cooling system without any issues?
  5. 3rd Gen. Powertrain
    Hello all, really need some help figuring out what’s wrong with my truck. It is a 2003 Dodge Ram 2500 with the 48re transmission. During covid I salvaged the entire drive line and electrical from my dads 2003 and put all of it into the body of a 2005 because the 2003’s body and frame were bent...
  6. 3rd Gen. Non-Powertrain
    So I basically inherited this 03 2500 SLT 5.9 2wd Ram. It is sagging in the front so I am looking to put new coils, shocks, and a lift/level but- I am having issues identifying the front differential for the right parts AND.... There ain't a front diff to be found!! Is this a solid axle...
  7. 2003 & Early 2004 Only Discussion
    All, I have a cold start problem with my 2003 dodge 2500 5.9l. I have done quite a bit of research and diagnosing after reading this forum so I need some help troubleshooting this lemon I bought. Will start after plugging in the block heater for about 1 hour. No codes or white/black smoke. Runs...
  8. 3rd Gen. Performance Parts Discussion
    Hey everyone, I have a 2003 5.9 and was looking for an aftermarket turbo, and in my infinite wisdom I bought a turbo that was used on a 2007 5.9. I found out once the turbo got to me that the 2007 turbo uses and electronic boost controller while my 2003 just has an elbow and tube to the...
  9. 3rd Gen. Performance Parts Discussion
    Okay so ive had my truck for a year and its sitting roughly 6-650 hp and drives great....build list as follows intake 4in exhaust 363sxe full built trans with full billit throughout and 2200 stall built head (rods, springs, retainers) exergy 60over injectors fleece flo pro 750 pump fass 165...
  10. 2003 Ram 3500

    2003 Ram 3500 DRW 2wd, Automatic, Edge Attitude w/Outlook Monitor, Boost Elbow, Raptor Fuel Pump, Gutted Intake/Exhaust, & Transmission Shift Kit.
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