SOURCE: need wiring diagram for a 2001 GMC 3/4 ton 4x4 8.1
Try this website for resolving car problems by downloading a FREE
service manual for your vehicle. This is not an owners manual but a
factory mechcanic's manual.
http://ezinearticles.com/?Find-the-Free-Auto-Repair-Manual-You-Need-Online&id=92717
SOURCE: spark plug wiring diagram
I dont understand why you would need that unless you took off all the wires and took out all the plugs and forgot how the wires were.I have the same truck and I always do the plugs and wires one at time to make sure I make a mistake.If this is your ploblem let me know because i might be able to walk you though it.
SOURCE: I need wiring diagram for 1994 gmc safari
You can go to autozone.com and register for full free online repair manual for your car. It your diagrams as well.
SOURCE: 1994 gmc jimmy need wiring diagram for blinker and
its got a 4.3 vortec in it i think got a piece in the intake called a spider that acts like fuel injecors probley not oppening up to let fuel into the motor also has a fuel presure regulator built in it there kinda pricey but that more than likely your problem
SOURCE: wiring diagram for my 2003
black wire is the 5 volt reference from PCM to IAT. Tan is IAT data signal to PCM. See diagram below.
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