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Discussion Starter #1
I'm supposed to be leaving for a camping trip with my truck tomorrow and I can't get it to drive! I've got a '97 3500 that I just finished going through completely - engine rebuild, complete PCS HD steering, stainless brake lines and brakes, fuel system upgraded to PTFE lines with Aeromotive A1000 FPR on the return line, AirDog DP-200, new batteries, etc. Just finished putting everything back together. The problem I am having is that the truck stalls when I put it into D or R. I've done a lot of reading and it seems like it could have something to do with the governor springs. I did just install 4K governor springs and an AFC Live with their AFC spring kit. Fuel pressure is rock solid at 40 PSI. When I put it in R or D, I can keep the engine running but it won't go above 1,200 RPM even if I am flooring it. The truck will not move although it is trying (it's parked in the grass in divots because it's been sitting for a long time). I think I could get it rolling if I was on pavement. Not sure if it is fuel related or if it has something to do with the transmission. Transmission was recently rebuilt by Lanning Diesel with a Goerend valve body and triple disc converter. However, I did nothing to the transmission and it was working great before I took everything apart. Any help is appreciated. I do have a couple of spare P7100 pumps so I could swap one out. Just don't want to go through all that work if it is the transmission. How do I diagnose this?
 

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If u start the truck in neutral and flat foot it what rpms can u get out of it
 

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When you pulled the engine did you also pull the tq converter off the front of the transmission or did you unbolt it from the flex plate prior to removal?
 

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Torque converter in lockup cause this? I know it would in forward, not sure if it affects reverse. I think it would.
 

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Discussion Starter #5
Been camping without internet and just saw the replies. Thanks. So the problem was that I forgot to keep the original outer springs when installing the 4k governor spring kit. Put those back in and it had plenty of power.

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