wiring

  1. H

    Finding Wires for Dummies

    Hello team, this may sound ridiculous but honestly I am not pulling anyone’s leg. There were 2 ground wires near my thermostat housing and after tinkering around I somehow cannot find the second ground. The one attached to the coolant sensor is still there but I honestly cannot find where the...
  2. Colossians32324

    Simplifying tbi rat nest. Question on engine grounding wires

    I tried posting in electronics. Maybe that wasn't the right forum. I've noticed I have 2 grounds going to my thermostat housing and another going to my intake manifold.(See red circles) Is there any reason I can't simplify these all to a single ground wire that splices to the others in the loom...
  3. 2

    New To Me '88 c1500

    Hello, so I have obtained a '88 c1500 with a Pontiac 305 that has been carb swapped, and what I believe to be a 700r4. When I got the truck, the dash had been pulled out (previous owner wanted to paint it) and I took about 2 days to reinstall the dash. The issue is, even after verifying fuses...
  4. Rlandmp23

    98 gmc seirra 4x4 4L60e

    I was wondering if anyone has access to a pdf version of the second edition 1998 c/k truck service manual? I am having some electrical issues. My gauges arent working, my shifting isnt working, I have replaced the vss. but upon looking at the wiring my husband and i found a ground wire attached...
  5. C

    Wrong dash harness?

    I recently bought 98 c1500 4.3 5 speed truck. Runs and drives just fine, but it's got a few electrical issues. Fuel pump cycles when I hit my hazard switch (hazards also work). No horn. The biggest issue my brake lights. I have high mount, but no normal brake lights. Turn signals and hazards...
  6. J

    Mystery Wire + Glovebox Wiring

    Hey all, Before I have an aneurysm trying to read some wiring diagrams, anyone know what this red wire is off the top of their head? Also what is the function of this wiring going off the top of my ecm to this box in my glove box? 1991 Chevy K1500 350 TBI 4L60 ECM Part #: 1227747
    • Joshg43
    • Thread
    • mystery wire wiring wiring help
    • Replies: 10
    • Forum: Electronics
  7. N

    What is this wire?

    I recently inherited this ‘88 Chevrolet C1500 with an L05 350sbc. It will turn and turn but will NOT fire, one thing I am stuck on is a wire I cannot for the life of me, find the other end. Maybe I’m blind, but I CANNOT find where the other end is and I’ve cut open plenty of the plastic looms...
  8. FastRadliff

    Custom work question

    hello I have a question about some radio work I am trying to do. Basically what I would like is to add a factory cd player or another cd player that would fit in the now empty cubby space that would work with my new CarPlay head unit (Power Acoustic CP-71W) I WILL BE experimenting with this over...
    • FastRadliff
    • Thread
    • audio cd player custom wiring
    • Replies: 2
    • Forum: Audio
  9. ShlamueL

    89 carb swap relay wiring

    I am trying to figure out where to wire these for a carburetor swap. I’ve seen some great threads already but sadly it seems everybody has a different relay harness. So I’m seeing if anybody has done one on this specific one.(if there is a thread with this harness please link me!). From what...
  10. VictoryRed

    Manual swap question for automatic shifter removal

    So I want to remove my automatic shifter but when its off the ignition wont turn enough to let the key out so what do I need to wire together to make it think its always in park once the physical linkage is gone?
  11. M

    Fuse panel connection on firewall

    I have a 94 GMT 400. I had a local company install a snow plow harness. Now my engine compartment is a mess and the harness connecting to the fuse panel on the firewall is melted. I no longer have tail lights and blinkers/brake lights are intermittent but fuses are not blowing (scary). I cannot...
  12. Aaron55

    Wiring issues!

    Hello, new to the forum and new to working on OBS trucks. I recently purchased a 1989 c2500. I have been fixing it up and have been meaning to get around to working on the check engine light. I tried shorting the A and B terminals in the proper fashion to see what I could pull from the flashing...
    • Aaron55
    • Thread
    • electrical issues obd1 service engine soon wiring wiring diagram wiring help
    • Replies: 40
    • Forum: Electronics
  13. Andrew Heide

    1998 Blend, Temp, Recir door actuators... How do they work?

    Hello, I'm looking to understand how the actuators work in a 98 gmt400. According to my diagrams and physically looking at the plugs, they only use three wires. Fused power (BRN), a signal wire, and a ground (BLK). When compared to a 90 actuator with five wires, +5v feed, mtr +, mtr -, ground...
  14. S

    Electric issues

    I have a 1995 k2500 350 tbi and I’ve been running into some electric issues recently. I just got done with getting the engine to run right and during that whole process I figured out that the A/C does actually work. All I had done was turn the ignition at some point and the A/C went from having...
  15. W

    Cruise control wiring

    I have a 92 k2500 and I am adding cruise from a 94 suburban. I cannot seem to figure out where this connector goes. It has 2 white wires and one purple. My only guess was the brake switch as I don’t have anything running to that but the connector isn’t correct. Any idea where this goes?
  16. 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
  17. Zimmerly

    1 Relay with 2 "trigger" wires? Parking light flash with key fob, when EITHER lock or unlock are pressed?

    I am looking for more education regarding using TWO separate trigger wires on ONE automotive relay, that will power the same source, individually. -I would prefer to NOT use a diode, as I have little experience with them, and would have to track one down. I also feel "diodes" seem a little...
    • Zimmerly
    • Thread
    • fob keyless lighting lock parking lights pins receiver relay remote wiring
    • Replies: 16
    • Forum: Electronics
  18. 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...
  19. Fobra

    Power door lock illumination constantly on

    Having a couple issues regarding about my power windows and the passenger front power door lock illumination being constantly on. So at the moment the passenger front and driver rear windows don’t work. I bought a new switch for those doors and the passenger front door lock illumination is...
    • Fobra
    • Thread
    • diagram door lock electrical issues power window switch wiring wiring help
    • Replies: 2
    • Forum: Electronics
  20. N

    No Exterior Lights

    Hello! I just recently purchased a 1992 Chevy Suburban 1500 2WD, and most of the exterior lights do not come on. That includes the headlights, tail lights, brake lights, and turn signals. The park lights do come on in the front, as well as all dash lights working/dimming. I have checked all the...
  21. hilly101111111

    No Reverse Lights

    Goodmorning folks hope everyone is doing well. I have a 1990 GMC K2500 with TBI 350 and Turbo 400 trans. I have been having some trouble with my tail light on the drivers side. long story short . The truck has new ground straps thru out and upgraded wires for the battery and alternator and new...
    • hilly101111111
    • Thread
    • backup lights led led conversion lights reverse lights reverse switch wiring wiring help
    • Replies: 7
    • Forum: Electronics
  22. roxannethe94_z71

    Rear Speakers

    Hey y'all, so I've been trying to replace my two rear speakers in my 1994 Chevy k1500 extended cab, but I'm afraid to pull the plastic frame from the back as I'm sure the clips are rotted and to be honest I'm not confident I could get the seats out without damage either. I've got two 4x6...
  23. N

    Does 1994 K1500 bucket seats fit in a 1995 Chevy C1500? Can I modify it to work?

    I used to own a 1994 K1500 Pickup with Z71 package. I wonder if the bucket seats that I had would fit instead of the bench seats in the 1995 C1500. Both trucks are extended cab. Thanks ahead of time. I'm really wanting the bucket seats because I felt they were more comfortable. I'm also curious...
  24. 9

    Fuel injector wire knicked.

    I saw this when changing some sensors. Can I fix this with electric tape or what would be the best fix until I can get a new on?
  25. T

    0411 Swapped 96 C1500 No longer starts

    Hi I swapped my 96 c1500 with a 5.7 Vortec to a 0411. I swapped it and it started and ran not perfect but enough I could drive I parked it. Then the next day I drove it into my garage to clean up my cables and double check my pins. I went to start it and it cranked but it won't start it smells...

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