1988 Chevy pickup wiring diagram - 1988 Chevrolet C2500

SOURCE: Engine Wire diagram for S10

go to autozone.com and you can register any type car and they have pretty good prints and service manuals on line. I have an 89 chevy s10 I just rebuilt my motor and overhauled the complete truck just waiting on a new paint job. best of luck

SOURCE: need a 1988 454 chevy firing order wiring diagram

1-8-4-3-6-5-7-2 Number 1 should point toward number one cylinder and then go clockwise around the cap.

Ned C Cook

• 3433 Answers
• Posted on May 05, 2009

SOURCE: My 89 chevy pickup headlights

Don't need one, Unplug from switch and with switch in hand replug together. then go back far enough on harness to where you can see some color then trace each wire back to the switch plug. You can buy the plug and wires in pigtail form and just match up the wires. Replace the switch for sure and find out why it shorted. Fire Hazard risk. Good luck

SOURCE: Need wiring diagram for 1988 454 Chevy engine in

try the library

SOURCE: fuel pump wiring diagram 1988 chevy truck

I personally have 1988 GMC truck and had to replace the fuel pump. I found all the info including wiring diagram in a haynes repair manual. These can be purchased in most automotive parts stores. Something I found interesting is that the fuel pump's operation works through the oil pressure switch, located by the distributor screwed into the engine block. If this switch is stuck or sticking it will affect the fuel pump. Replaced a good fuel pump for nothing! The truck had sit up for awhile and the ground wire connections had to be cleaned as well.