1990 Jeep Comanche Fuel Pump Wiring Diagram

Variety of electric fuel pump relay wiring diagram. Starting from the basics take off the fuel cap and listen closely for the fuel pump to come on as a helper turns on the ignition key. If the jeep cherokee has stopped running or will not start and you feel that the fuel pump has failed then this is the proper way of diagnosing the problem before replacing an item that may not be needed.

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1990 jeep comanche fuel pump wiring diagram. Installing a dedicated voltage supply line for your fuel pump. 1988 wiring diagrams jeep. 1990 jeep comanche engine room fuse box map. It shows the elements of the circuit as streamlined shapes and the power as well as signal links in between the gadgets.

1997 2002 jeep wrangler tj w 2 5l engine 1997 2006 jeep wrangler tj w 4 0l engine 1991 1995 jeep wrangler yj w 2 5l or 4 0l engine 1991 2001 jeep cherokee xj w 2 5l or 4 0l engine. Check fuel pump for power check fuel pump relay in power distribution center they often have same relay used in several applications you can borrow one from a non essential system and just swap it to do a quick check also i would change the fuel filter. Fuse panel layout diagram parts. The fuel pump relay gets power from fuse 6 15 amp of the power distribution center pdc.

Starter motor relay a c clutch relay fuel pump relay oxygen sensor heater relay latch relay. Location a c htr systems 5 a d 16 19 alternator 1 c 3 audio alarm module 7 d 27 back up lt sw m t 4 d 12 battery 1 a 2 beam sel sw 6 e 23. Jeep cherokee wiring diagram 1990 1990 updated. Fuel pump troubleshooting notes.

The above fuel pump and fuel pump relay wiring diagram applies only to 1993 1994 1995 4 0l jeep grand cherokee. Check out our popular jeep cherokee manuals below. How to re wire a fuel pump off a relay. 1990 jeep comanche engine room fuse box diagram.

Fuel pump wiring diagram part 1 note. My son bought a 1988 jeep comanche 2 5l 4. When putting in an aftermarket fuel pump or looking to get more fuel out of your factory pump one mod worth doing is re wiring that fuel pump the purpose of this is to make sure that the fuel pump is getting a good clean voltage that won t fluctuate or. A wiring diagram is a simplified standard photographic depiction of an electrical circuit.

1984 1998 jeep cherokee 4wd 6 cylinders l 4 0l mfi ohv 31646202.