wiring

  1. 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...
  2. 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...
  3. 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?
  4. 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...
  5. 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...
    • hilly101111111
    • Thread
    • back up lights brake lights ground wire grounds help taillight taillights turn signals wiring wiring harness
    • Replies: 8
    • Forum: Audio + Electronics
  6. J

    Wiring harness swap from 6.5 to 5.7

    Hey all, i have a 96 k3500 that had a blown 6.5 in it and i am swapping in a 350 out of a 96 Tahoe. I have a Nv4500 out of a 2000 k 2500 that was bolted up to a 350 that i will be putting in this truck as well. I took almost the entire wiring harness out of a junkyard 96 k1500 truck ( computers...
  7. hilly101111111

    Horn Help!

    Ive been having an issue with the horns in my 1990 GMC Sierra SLE K2500. It has a 350 turbo 400 in it. I Had removed the wiring harness and horns to paint and retape. So long story short everything is hooked back up and grounded properly. I have power to the 20 amp fuse that I believe is what...
  8. Jesus350

    Bad A/C ground

    Hey guys so my AC compressor doesn’t engage, im sure its a bad ground since i put ground from my power probe and it engages so i would like to know where should start looking, also this may be related but my third brake light turns on when i press the AC button on and when i turn the AC button...
  9. R

    Efans conversion

    Did a fan conversion on my 98 only question is the temp wire, I tapped into the wire on the side of the block and it made my temp gauge shoot up past 260. The truck is not warm or hot it just instantly shoots up past 260. So I redid the connection like in the picture and put in the fitting that...
  10. S

    no spark! Im desperate

    So I see other no spark threads and I promise I have read them all. I am in desperate need of some help. This was supposed to be an easy distributor swap. 1998 C3500 5.7 Vortec. Original problem was that the truck would start, and grumble and backfire and stumble, but eventually would level out...
  11. G

    fuel pump relay ground and power

    1997 GMC Yukon 5.7 vortec 4X4 This started 10 minutes or so after I left a car wash, it didn't spit or sputter just died on the road. After a fair bit of diag and changing the pump i discovered that pin 87 ( should just be constant power ) is also a ground to the body. I don't know how this is...
  12. C

    4Wd Fuse Blowing, Tried Every Fix I Know

    Hello, on my 1993 K1500 the 4wd fuse will not stop blowing. I've read every post I could find on here and other websites, and nothing will do the trick. I was hoping that someone would have a fix before I spend another $150 on a Posi-Lok after spending $150 on a new electric actuator and t-case...
  13. D

    Lost Speed Signal to Dash

    I have an 88 dash and harness I swapped into a 96 K3500. It was a shell I got cheap so I put an LQ9 and 4l80/np241c in it and used the interior from a derelict 88 k2500 I had. I deleted the cruise control when I moved everything over because I couldn't really use it, but I have not had a working...
  14. S

    Need help diagnosing blower motor problems.

    I'm getting wrapped around the axle trying to figure out why my blower motor is not working. I replaced the blower motor and resistor 2 months ago. It recently stopped working completely so I started poking around. When the 12v terminal on the motor is jumped, nothing. When the ground terminal...
  15. CrystaledJazz

    How would the Odometer work in an LS swap?

    Hey, I'm going to be swapping a 4.8/5.3 into my 89 350 TBI truck. I've been doing a lot of research and theres one thing that i cant seem to figure out. I plan on making everything work like factory but with a newer engine, and that means even the odometer. So I'm wondering how I wire or hook...
  16. nhelmar19

    Can't identify these wires

    I made a previous post about an issue I'm having with my HVAC controls where the temp and vent arrows are flashing. While trying to rule out issues with that I found a light green/dark green set of wires that appear to be cut and I can't find where they would be connected to. I also found the...
  17. Treyes

    Power window / power lock switch need help with pins

    I bought the power window and locks for a 88-94 but have no idea what the pins are for and which control what. If you could help me out that’d be appreciated.
    • Treyes
    • Thread
    • 88-94 c1500 need help power door lock power windows wiring wiring diagram
    • Replies: 0
    • Forum: Audio + Electronics
  18. T

    Knock Sensor Wire Gauge

    I need to replace the length of the wire from the ESC to the knock sensor. Burnt and shorted by proximity to the headers. I'm going to make the wire longer so I can route it away from the headers. What is the gauge of wire I need to get? It's an 89 K1500 with the 350 TBI if that matters. Got...
  19. M

    1988 GMC K1500 Fuel Pump Relay Wiring -- Need Urgent Help

    So, I got this 1988 GMC Sierra SLX a year and a half ago, the original engine's oil pump got clogged up with some kind of silver flakes, radiator exploded, dropped a new engine in it, in the process of getting it dialed in and timed, a buddy advanced the timing way too far after I switched the...
  20. M

    Headlights

    Alright yall ive been having issues with my head lights on my 1999 gmt-400 obs chevy 2500 ls crew cab the issue is the headlights only come on when the steering wheel is adjusted all the way up anything under that adjustment the lights shut off.. im guessing its a short in the wiring but not...
  21. D

    Dash Light Wiring Smoke...Help

    Hey everyone. I need some help. 1998 z71 ECSB. Stock 5.7 vortec. This weekend while pulling the boat home from the lake, I noticed a hot smell, like hot wiring. I also noticed what looked like some light smoke coming from the far left of the dash/possibly the vent (it was dark and I was...
  22. Keegan

    L92/6L80E SWAP, WIRING NEED HELP

    Hey guys, first post here. Not 100% whether I'm in the right area but essentially I have a 6.2l/6l80 tranny with the engine harness and pcm; I'm currently in the process of trying to "LS" swap my 95 k1500; which I haven't even touched yet in terms of tearing apart. I've kind of been trying to...
  23. M

    Repairing the wiring harness in an 88 GMC K1500, need some help.

    Hey everybody, so I have an intricate job to do. I've been trying to fix my truck's starting-idling-dying issue after I dropped a new engine in it. A buddy of mine suggested replacing the fuel pressure regulator. So I let him do it. Little did I know there was gas on the intake. Then he...
  24. Treyes

    Where to run wires through firewall?

    I have a 92 c1500 and can’t find anywhere to run my subwoofer power wire and other accessories through the firewall without drilling which i don’t really want to do so if y’all could let me know where y’all ran y’all’s wires through that’d be appreciated
  25. R

    1994 Suburban 1500, 8 volts at fuel pump

    I'm back again with my never ending Suburban project:banghead: 1994 Suburban 1500, 350 TBI. I put in a new Delphi fuel pump, and the truck ran great, started easily and consistently. The truck sat for 2 weeks, it's now a no start, and only 8-8.5 volts at the fuel pump connector. Code 54. Can't...

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