electrical issues

  1. A

    Electrical issues. POSTED IN MAINTENANCE TOO

    I just got a surprisingly nice 1990 2500 350 TBI off marketplace for the low low price of free. Runs and drives better than it should but effectively nothing in the interior works. This thing has some pretty hardcore electrical gremlins, the previous owner did some real mickey mouse bull**** on...
  2. J

    Need help, no start

    Hey yall, first post here, I have a 1998 c3500 with the 5.7. Been one thing after another with this pos project. Firstly I had to replace the transmission, not that big a deal. Went to test it out, starter died. Replaced starter. Key on to start, nothing. Pulled starter relay, jumped pins and...
  3. J

    Oem radio only plays static

    Oem radio only plays static on FM and AM and only plays out of 1 of the 4 speakers (driver side pillar speaker). Already swapped out the CDM and radio unit with the same problem. I have a third one I have yet to put in as I’m about to swap the dash. Any clue on what it is?
  4. R

    Electrical problems with lights

    I recently bought a 92 GMC Sierra with a 6.2 Detriot diesel. I live in Georgia but the previous owner lived in Canada. He used the truck as a snow plow exclusively his property so there is little to no rust damage on the truck. For a 31 year old truck, it is very clean! The truck also has a...
  5. J

    Radio will not turn on

    94 k1500 radio will not turn on. Checked power on radio cu plug and only has power to orange wire and no power on yellow(acc wire). Any ideas on what could be the issue?
  6. Treyes

    Taillights are out

    Hazards work, brake lights work sometimes, but running taillights wont switch on, my column is all broken i dont know if that has to do with anything but ive tried everything else, any advice, recently got my ls swap done but i doubt that has anything to do since everything else works on it
  7. Single_handed

    94 Chevy C1500 power door lock breaker overheating.

    Hope this is the right location for this, searched and couldn’t find anything. I inherited a 1994 Chevy C1500 2 dr ext cab. pickup from my Grandfather who passed several weeks ago. It’s a 2wd, automatic, 4.3L v6 truck. My grandfather bought the truck new in 93, honestly, it isn’t a truck I’d...
  8. sirmacbain

    Another Electrical Hell Issue (Brake/Hazard/License lights '90 K1500)

    I'll document this fix as I work on it in case it helps someone else, OR hopefully someone has an answer/help. I bought a 1990 K1500 and since day one it's had brake/hazard/turn/license light issues: If I leave the brake fuse in (labeled "stop" in the box): * the license plate lights stay on...
  9. KCusick81

    Sanden 4440 install

    Hello all, New member and gmt400 owner here. I need a little help with the ac compressor install I did today. I'm not sure if this is the correct place to post this, so I apologize ahead of time if it's not. Getting to the issue at hand. I have a 1997 chevy k1500 5.7. I installed a new sanden...
  10. B

    1990 tbi ecm shorting

    I have a 1990 Silverado tbi. I was able to figure out that the ecm had a short where pin 16 connects to the circuit board. I added some solder when I went to connect it. It shorted instantly. On this pin it has the injector light blue wire and a orange wire that runs to a fusible link, fuel pump...
  11. Jjk1988

    92 gmc 1500 heater control stays on

    Hello I have a 92 gmc 1500 extra cab. Every since I bought it the heater control stays on all the time. Even with the key off. The fan even stays on. Is this a common problem with the control unit? I haven’t looked too far into it. However at some point this pickup had an after market alarm...
  12. R

    Lots of electrical issues

    I have a 94 K1500 5.7L with a lot of electrical problems. Passenger power window rolls down but sometimes won't roll up. Works intermittently. Replaced switches on driver and passenger side and installed a new motor; no change. Radio worked when I bought it almost a year ago; stopped working a...
  13. M

    Need help - 98 electrical problems and 4L60E transmission codes

    Hello everyone. We have a 1998 1500 5.7L 4L60E 2WD truck that we've had for about 10 years. In 2018, we put a remanufactured 4L60E (ordered from the dealer) in the the truck and then we ended up getting a new truck so we parked the 98 and hadn't touched it until now. So the transmission only had...
  14. SouthernChevy74

    1989 Silverado c1500 350 Fuse Box Issue?

    Okay so I was looking under the dash at the mess of electrical wiring issues & I noticed I didn't have the two power fuses plugged in, also I can't plug any in because the copper connectors are missing. Do I need to replace the whole box or can i buy the connectors that go in the fuse holes? Can...
  15. I

    97 K2500 6.5 electrical issues

    im having an issue where when i hit a bump or take a turn to hard my radio will cut out and come back on and all the lights will flicker. it looks like the ground strap has coroded and broken in half, would this be the source of my issue or do i have a deeper electrical problem? im also having...
  16. Repstar

    Electric issues with 4x4, fan & dash lights

    Hey All, Looking for a bit of help on some electrical issues I'm having with my 2000 K2500 (has the 454 in it). Some of the dash warning lights started flickering on and off a while back (ABS/seatbelt/e-brake) but not a big deal. Truck still started and ran fine, then the ac blower fan would...
  17. S

    88 no power, complete power failure, help!

    I have an 88 Chevy K1500. It sat for 2 years as money was saved and some minor work was done to the frame in that time. The truck ran when parked. Went to attempt to fire it up and nothing! Figured the battery was dead I put jumpers on it and still nothing! No reaction from the dash, interior...
    • sjten10
    • Thread
    • electrical issues no spark not starting
    • Replies: 23
    • Forum: The Garage
  18. Treyes

    Need help with fuses

    Got a 1992 c1500 that the cigarette lighter isnt working (has power) the cab light wont turn off when truck is on. Saw somewhere that its connected to a faulty fuse but need help figuring out which one it is.
  19. S

    White woman needs serious help with her truck

    In all seriousness... I need help with my truck BAD, I’m in Alaska where it’s negative temperatures and snow up to my knees and of course “ole reliable” went and took a crap on me. Why now? Well here’s what happened: 1997 Chevy K1500 extended cab 5.7L I’m driving down the road, I hit my...
    • Savanah23
    • Thread
    • electrical electrical issues help k1500
    • Replies: 6
    • Forum: The Garage
  20. C

    Power issue

    I have a 1990 k1500 that has an odd issue where if you turn the steering wheel to a certain position, let’s say 11 o’clock on the wheel, all the power in the truck shuts off and if the truck is running it will also shut the truck off killing power to the fuel pump and probably everything else...
  21. Bm1912

    Weird wiring problem

    So I assume this is a wiring problem, I did an LS swap on my 97 c1500 and got it put back together and took it on it’s first test drive. I went to turn the lights on and nothing happened so I tried my brights and that worked. So I went down the road and came back. And turned the key off and took...
    • Bm1912
    • Thread
    • electrical issues headlight ls swap
    • Replies: 1
    • Forum: The Garage
  22. dirtautoguy

    Blowing fuses

    Hey, I think iv got a bit of a unique problem here and thought I would throw it out and see if anyone had any ideas. I have a 1996 k1500 regular cab short bed pickup iv had for about 8 years (it was my first truck and got me into wrenching on things) anyway iv used it to tow various things and...
    • dirtautoguy
    • Thread
    • electrical issues fuses trailer lights
    • Replies: 3
    • Forum: Towing

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