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  1. FM9694

    1994 K1500 stalls only when brakes applied

    Yes the booster has been ruled out with the check
  2. FM9694

    1994 K1500 stalls only when brakes applied

    A scanner to find the short ? I’m in central NJ near flemington
  3. FM9694

    1994 K1500 stalls only when brakes applied

    No luck man. Got the new internal wiring harness and installed it. Plugged in the external connector and the continuity is still there. Unplug the connector and it’s gone. Now I do not know where the short is. Could it be the external (plug in) portion of the connector? I really cannot...
  4. FM9694

    1994 K1500 stalls only when brakes applied

    Just to get your opinion as well, to confirm this I followed your steps of depin black / tan wire from PCM and tested with truck on and got 0v. I then turned truck off and tested the tested the now free black / tans wire resistance to ground which it showed continuity, thus diagnosing...
  5. FM9694

    1994 K1500 stalls only when brakes applied

    Update: narrowed down the short to ground to within transmission. New wiring harness on the way
  6. FM9694

    1994 K1500 stalls only when brakes applied

    I am having difficulties tracing the path of the pink circuit 1020 that gives power from ignition switch to trans
  7. FM9694

    1994 K1500 stalls only when brakes applied

    have confirmed that it is an uncontrolled grounding of circuit as stated in #2. Chafe of wire occurring somewhere. Now this issue is finding where
  8. FM9694

    1994 K1500 stalls only when brakes applied

    Only stalls when In gear and brakes applied. Doesn’t stall In park or neutral
  9. FM9694

    1994 K1500 stalls only when brakes applied

    Thank you so much for this. I will update when the hunt is complete to let you know what it was exactly. I did pull code 69 the first day this happened, but read the wrong chart online and mistook it for an A/C related code and thought it had nothing to do with it. Could you please explain the...
  10. FM9694

    1994 K1500 stalls only when brakes applied

    I have realized that the TCC solenoid is getting 12 Volts constant. Should only be getting power at high speed in O/D. Replaced the brake switch thinking that would do it but didn’t. Anyone have ideas?
  11. FM9694

    1994 K1500 stalls only when brakes applied

    I have not been able to verify whether it is unlocking or not but did replace the converter and the solenoid
  12. FM9694

    1994 K1500 stalls only when brakes applied

    desperately need some help here. Situation: 1994 K1500 stalls only when brakes are applied. I originally thought it was when it was put in gear, but it’s only when brakes are applied that it stalls out. Work done so far: New Distributor, cap and rotor New plug and wires New coolant temp sens...
  13. FM9694

    1994 K1500 stalls in gear

    @GoToGuy Thank you man, I will check that on Monday and update on this thread, I had that in mind but thought I would have problems starting the truck from experience with GMT800 fuel pumps. Any thought on distributor being the culprit as well? Will be checking fuel pressure before anything else
  14. FM9694

    1994 K1500 stalls in gear

    Also wanted to add that I am not throwing any codes either
  15. FM9694

    1994 K1500 stalls in gear

    Making a new thread because I’ve read so many and need help properly directing my attention. Situation: 94 K1500 with 110k original miles. Owned for a month with no issues until one day I began to stall at stop signs, eventually unable to get it going. Idles fine in park and neutral. Stalls...

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