wiring harness

  1. 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...
  2. hilly101111111

    brake light issues

    I have a 1990 GMC K2500 350/Turbo400 trans 4x4 8' bed. Every time I hit my brake pedal when the headlights and tail lights are on, my drivers side tail lights go out and my backup light lights up. Also when the lights are on and I use my driver side turn signal the tail lights and the backup...
  3. J

    Interior light subharness

    I just swapped my dash in my 94k1500 W/T edition. Only had driver side door switch and single dome light. Got a dash off of an earlier edition Chevy but has no cracks. It also came with interior foot lights, glove box light, and ash tray light. It supposedly plugs into the convenience center but...
  4. 2000obs

    2000 k2500 5.7 vortec/5 speed engine harness

    I have a 2000 gmc sierra sl k2500 reg. cab long bed with the 5.7 vortec and nv4500. I was wondering where I could find a engine harness cause mines is all cut up and sensors are missing. It surprisingly runs and drives but it runs like **** cause its missing all those wires and sensors. Would...
  5. 94ChevyZ71

    Engine Harness

    My dad just recently bought this 88 k1500 single cab and it needs some work. The guy who had it before really screwed the wiring up. It’s a 350 tbi and the main loom coming out of the firewall on the driver side is cut in half. Also the plug for the loom where it attaches to the firewall is...
  6. Chevyboi93

    Using factory gauges for LS swap

    Hello, to all my fellow Chevy/OBS lovers out there,I’m planning to swap my 5.7 for a LQ9 in the near future and after a lot of research I feel like I’m going to handle it pretty well BUT I am slumped on one thing and that’s getting my factory gauges to work at least for now until I drop the...
  7. Wontonfun

    4L80e trans leaking from "electrical connector"

    95 C3500 chassis cab w/ 7.4L and 4L80e having trouble solving transmission leak. Dealership says it's coming from an electrical connector that ties into my wiring harness between my TISS and TOSS. They said it would probably be an oring but they would have to pull the entire transmission to...
  8. McSweeney

    Positive terminal ground straps

    Hey so i noticed that my ground strap that connects to the frame on my 97 broke and im not sure where it goes to or even where to buy a new one. So what im seeing is that there is a ground strap that goes from the frame to the firewall, which looks easy enough to replace. But the other one...
  9. B

    Wiring harness

    I'm staring disassembly on my 91 for a full frame off and notice several chewed wired under the hood. Anyone have a good source for a wiring harness for these trucks? I did a google search with dismal results.
  10. I

    TBI injector harness grommet.

    I'm having trouble sourcing this grommet as mine has become brittle. Does anyone know if any companies reproduce them? Also, does anyone know what kind of terminals are used inside the injector pigtail? I imagine I'm going to have the cut the wires if I replace it. So I'm either going to put a 4...
  11. B

    New from Cullowhee,NC

    Found these forums when I blew head gaskets on my 95 k2500 last year. Officially making myself a member today because I’m completely stumped about wiring. upgrades: Jegs power performance long block. Jegs dual-plane intake manifold. Fi-Tech 450hp injected carburetor with upgraded fuel pump...
  12. LoCascio_Inc

    Help Needed - Rear Speed Sensor Wiring Leads to Nowhere. w/ PICS

    1998 K2500 ECSB has had a code C0236 (missing rear speed sensor) since purchased. I disassembled the wiring harness to look for a short and revealed that the wires from the rear speed sensor on the transfer case output terminated at another connector with a female to female adapter about 18"...
  13. LoCascio_Inc

    Help Needed - Rear Speed Sensor Wiring Leads to Nowhere. w/ PICS

    1998 K2500 ECSB has had a code C0236 (missing rear speed sensor) since purchased. I disassembled the wiring harness to look for a short and revealed that the wires from the rear speed sensor on the transfer case output terminated at another connector with a female to female adapter about 18"...
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