electrical

  1. G

    Speedoo and brake light issue.

    Hey guys! Time to make my first post here! I have some electrical issues with my 97 6.5 nv4500. Main thing is speedo will bounce around and come down to zero after say ten to 15 minutes of driving, when cold. Going home from work in the afternoon it will start to act up after maybe 5-10 tops. If...
  2. K

    Voltage guage issues

    Hello everyone! I have a 1994 Chevy Silverado z71. If you turn on the a/c it drops the guage a volt or so. Turn on the turn signals and the guage bounces with the flasher. Power windows and locks are slow. Anyone have this issue? I’ve had this truck about 12 years now. Thank you, Kevin
    • kthom96
    • Thread
    • electrical power locks power window switch voltage guage
    • Replies: 7
    • Forum: Electronics
  3. T

    Horn Contact With Copper Fingers

    Hello to whoever finds this. Vehicle is a 1991 C2500 SLE 2WD I'm looking for a part number or technical term for the white plastic piece with copper finger contacts that's under the turn signal switch assembly. Close up and expanded pics attached.
  4. Colossians32324

    Simplifying the tbi rat nest in my carb swapped 93. Question on ground wires

    I've noticed I have 2 grounds going to my thermostat housing and another going to my intake manifold. Is there any reason I can't simplify these all to a single ground wire that splices to the others in the loom? Any info like which location is better or what gauge wire is best would be...
  5. B

    alternator stops working when i pull on the hood release

    really weird issue i have with my 94 k1500 is when i pull on the hood latch the alternator will stop working. the battery light comes on and the voltage gauge drops. it will either do it for a quick second or stop working until i pull on the release again really hard or giggle the big wiring...
  6. CoopDog

    electrical problems

    1988 GMC G3500 VANDURA CUTAWAY BOX TRUCK The truck ran great when the motor was replaced the LED lights worked that I had replaced. Now it ran today but no lights. actually lights haven't worked in a while. checked all the fuses, all good. however, when it is running and i turn on the lights...
  7. Crussell45

    Unused plugs in wiring harness

    What is everyone using to “cap off” unused electrical plugs? Is there someone that makes caps for the different style plugs? I’m just not a fan of the electrical tape idea. P.S. Just did the intake gaskets and while I was in there I … Replaced: Injectors FPR Cap & rotor Removed: ALL of the...
    • Crussell45
    • Thread
    • 454 7.4l 7.4 vortec electrical k2500 k2500 7.4l
    • Replies: 8
    • Forum: Electronics
  8. L

    89 c1500 dead electronics update?

    If you see my previous post, I’m updating about my electrical issues. All fusible links are getting power at the junction box/ fuse in engine bay, It was tested with a Test light. And of course, all fuses are working too. But I have found something suspicious. I found a broken ground strap under...
    • luvmychevy22
    • Thread
    • 89c1500 electrical electrical issues grounding spots
    • Replies: 0
    • Forum: Electronics
  9. H

    Need some 80s chevy style gauges for my truck

    I want to eventually install a dash for an 80s chevy truck to my 90s chevy silverado. I also want to get new gauges for my dash. I have a 4l60e, so I need to figure out the speedometer. Any ideas?
    • Hyp3rDeath101
    • Thread
    • conversion custom electrical gauges interior speedometer wiring
    • Replies: 5
    • Forum: Electronics
  10. Fred5280

    Alternator to battery post

    I’m having an issue with my alternator, the stud that has BAT stamped behind it is just spinning inside the alternator housing is there a way you guys would recommend to fix this maybe a stud a next size up? or is the alternator done this is on a 92 c1500 w a 350
  11. N

    Chewed Wiring

    I just took a peak at my headlights and tail lights in my 92 suburban, and have found that the wiring for every single light has been chewed through, about a foot into the wiring from the lights. I'd like to replace the wiring harnesses for all the lights, and have easily found multiple...
  12. Fobra

    No power to passenger front window switch

    Trying to chase this issue for the passenger front and driver rear windows on my 96 Yukon SLE 4Door. None of them are getting signal power. The power locks work. When I try to use the master switch, it sends out voltage to the signal wires but they still don’t go up or down. I’ve tried checking...
    • Fobra
    • Thread
    • diagnostic electrical electrical issues power window switch power windows wiring help wiring issues
    • Replies: 3
    • Forum: Electronics
  13. Steel

    1997 Silverado 5.7 Electric Issue

    Hey everyone. I just bought a 1997 Silverado Z71 with 120,000 miles from the original owner. Needs some work as it hasn't ran in about 2 years. (But got it for a great price) and I've been working on it but one issue I have come across is electrical. I got a new battery. Truck fires right up...
  14. Aussiecrewcab

    1997 C/K service manual ELECTRICAL NEEDED

    Hi everyone, I’m looking for a digital copy of this specific service manual, or somewhere I can download the best, most comprehensive electrical diagrams for 1997 specific C3500. Any help most appreciated
  15. B

    Strange electrical issue

    1994 k2500 5.7L 3/4 ton 6 lug seems I can't post a video here so I'll leave a link to the subreddit where I posted this problem: I have cleaned or replaced every ground that I can think of. I replaced the fuel pump when I got the truck in November 2023 New oil pump oil pump pressure switch...
  16. Murphy1294

    Gauge Cluster Issues

    Hey everyone, I've got a 2000 ccsb project that I've been working on that's been cummins swapped. There's a couple electrical issues, the main one being the gauge cluster. None of the gauges work correctly. The tach flutters randomly. The voltage doesnt display correctly Fuel goes past full...
  17. B

    1991 c1500 electrical issues

    My 1991 c1500 Radio,Heat,Ac does not function 90 percent of the time . The radio lights come on but when you go to change the station volume etc its frozen but every once in a while it works. For the heat and ac has a very similar deal with the display lighting up you go to change the blower...
    • ByerlyObs
    • Thread
    • electrical radio radio windows wipers blower
    • Replies: 0
    • Forum: Electronics
  18. 1996greanbean

    Ext Cab to Crew Conversion Question

    Well it seems odd I’ve been going to this website for the last 5 years for advice and never once registered so I’m brand new here. I’m sure one of you knows the answer to my probable obvious question but I have to ask because I haven’t seen any other discussions about it. Little background. I...
  19. J

    Some fuses not having any power

    I have a 1994 Chevy K2500 with the 5.7 TBI and have been having issues with my fuses lately. Used a test light and there’s no power going to my “htr/ac, brake, 4x4, or crk” fuses. I have little experience with electrical and any ideas/suggestions would be helpful With these fuses not working, I...
    • JozefRoberts
    • Thread
    • 4x4 confused electrical fuse box fuses heater parking brake speedometer
    • Replies: 3
    • Forum: Electronics
  20. A

    New marketplace truck, most of the electric does not work.

    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...
  21. B

    I got a new alternator...

    I have a 1992 K1500, 5.7L. I just put a new alternator in it, and whenever I go turn off the truck, the charging light comes on for a couple seconds, then goes out, and when in drive, at a stop, after warming up, the voltage varies from 9v to 12v on the dash. I tested to see if it's charging...
  22. SlimPickinz

    High idle switch 6.5 diesel

    I have a 6.5 diesel, I’ve seen people make high idle switches for them, but I guess they buy pins from gm(or used to) to plug the wire into the pcm. My question is, can I just make my own pin? Can I just basically push the wire in? Does anyone have a couple gm pins I can buy? I appreciate it
  23. 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
  24. 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...
    • sirmacbain
    • Thread
    • brake light problem electrical electrical issues
    • Replies: 5
    • Forum: Electronics
  25. KCusick81

    Is my starter going up? Other possibilities?

    Good evening everyone, First, I would just like to thank everyone who helped me out a few weeks ago with my AC and cooling system issues and install questions. Both systems are 100% new and working great! You guys are awesome! Now it seems, I'm having a new issue... Since I purchased the truck...

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