Tcc? O/d? Lock Unlock Fix?

[get R done]

Originally Posted by flubyux2

i did it ALL except buying a noise filter from an aftermarket source

Remove engine harness and install braided noise sheilding on TPS wires from TPS to PCM and on Trans control wires from Trans to PCM. (this precludes the need for a noise filter since the braided sheilding prevents the noise from entering the wires intially)

Ground PCM case w/ 8awg fine-strand cable to negative battery ground

Replace Ground cables on battery

Replace Gov Press sensor and Gov solenoid

Replace trans fluid and filter

Replace Output shaft speed sensor

Remanufacture PCM

Rebuild Generator.

my Gov sensor/solenoid were faulty and that got my PCM out of limp and allowed it to shift normally. however, nighttime driving made the TC lockup, OD/D shifting problem apparant. i knew it was dependant on electrical load since it only happened at night, when running the lighting increased the Generator load dramatically. turns out the brush in the generator was worn down to the shoe and was arcing out on the armature. this acring created RFI which was introduced into the harness and the PCM via inductance. replacing this brush (even though my truck produced 14v while running and showed no evident signs of failure) solved my shifting problems 100% . my truck is now shifts as strongly, predictably and reliably as it did when it first rolled of the Lot.

Moral of the story; REBUILD YOUR GENERATOR FIRST, before buying ANYTHING else.

Thanks for the reply i tried to test the voltage on the tps the other day and i drilled the tps so i could adjust it this did not work so i drilled 2 small holes in the case of the tps about the size of the spray wand on a electrical contact spray can and i sprayed electrical contact cleaner in one of the holes and a bunch of dirt came out the other one and then i sealed th 2 small holes with silicone and the truck shifts fine now but it has only been a week,i still have my fingers crossed.But i still do not understand why the new tps i bought from dodge will not work at all,you would think a new one would fix the problem but it will not shift to o/d or lock up a all with the new one?

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1996 dodge ram 3500 ext.cab 2wd,modified tranny &torque converter,HTB2 62/14 turbo,K&N drop in filter,370 marine injectors,#100 fuel plate,GWK washer kit mod,AFC circut removed,,4" exhaust,autometer pyro & boost gauges.

[flubyux2]

well, did you calibrate your TPS like the article on Cummins Database describes? if you did, then you may be getting inductive interference in your TPS circuit from the generator. look for a starter/generator/alternator repair shop. the guy who i took my Gen to tested it beforehand, tore it down, inspected it, replaced the brush, cleaned it, reassembled it and re-tested it again. initial output was about 90Amps. With the new brush installed, it put out over 120Amps with no arcing.

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`97 12v 2500, STD cab, 12v, #100 plate, tweaked AFC, Tabbed KDP, 4" FBD exh, BHAF, Built 47RE/VB/DTT 89% TC, 2wd, 3rd Gen Rims, 3.55's, PSI/Trans/EGT guages... And a `97 Dually "Handshaker"!

[CTDFan5.9]

I cleaned the battery cable and reran the ground from the PCM