I have a 1988 gmc s-15. 2.8 litre. i recently took the entire dash out. put back and now the heat does not work. it worked before. i have one harness not plugged in and not sure where to do so. is there any diagrams on the web that will tell me exactly where to plug it.?
SOURCE: what is the firing order, diagram, and distributer
The firing order is almost always cast in the intake manifold in front of the throttle body.But here it is 1-6-5-4-3-2....Rotation is clockwise. The cosest front terminal on the cap is #1.
SOURCE: how to remove fuel pump on 1988 gmc s 15 pickup
to remove the fuel pump you need to unbolt the tank and the lines to drop down the gas tank. then turn the ring on the top of the tank and unplug the wires and remove the fuel pump
SOURCE: 2008 GMC C5500 factory wired for trailer harness
well i suggest you check the manual of ur gmc sierra to get the exact wiring diagram and there only u'll get port to plug into.
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