Join Date: Jan 2009
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The tranny shop says they tested the MLPS or neutral safety switch and all is well.
They replaced the solenoid packs, but the problem still remains.
They hooked the computer up to it and the signals coming into the trans are sporadic and really strange so they are wondering if that is the problem.
When the truck is running, they can unplug the transmission harness and the truck slowly dies.
When the truck is running they can force lock up and the truck immediately dies.
Here is some secondary info I thought may be relevant...
When I drove it home the other night, I noticed that when I stopped in my driveway with the truck in park, the idle lurched to 800 or so, then back to 700 like usual. It may be nothing or may be related.
I removed a banks trans command from the truck when I first got it. When it was originally installed, there were four wires or pins removed from the factory harness and relocated to a banks harness. Then the four empty slots on the factory harness were filled with four wires or pins from another banks harness. So basically the trans command intercepted four signals from the truck, injected them into the trans command and spit out its own 'upgraded' signals to the tranny. So I had originally installed a terminator plug that came with the trans command kit. It basically just had four wires looping to mimic the factory harness. When I removed the banks harness altogether I had to pull four wires or pins out of a banks harness and reinstall them into the factory plug. Maybe I crossed one, but I really really doubt it. Also, when I did that I found that the module that the factory harness plugs into on the passenger side of the transmission was flooded with fuel or oil, etc. That fuel or oil had decomposed the factory plug slightly so I had the transmission shop replace that plug while they were doing the work.
1997 Crew Cab Long Bed Black 4wd Powerstroke F350, 2005 Axles, 6" Icon Lift, 4 Link, Fox Reservoir Shocks, 35" Toyo Muds, Tymar Intake, MBRP 4" Straight Through Exhaust, Edge Tuner