I would start with re-checking the fuses, specifically the ignition fuse, take it out, clean the contacts on the fuse and the fuse carrier and then try it out. There is a fuse in fuse block fuse 5 tht goes to asd relay and fuse 1 in powr dist box, make sure both of those are ok. Bring the vehicle to an auto parts store. It's working , so that part is eliminated. I call a few parts stores and they cannot find one anywhere. If more than one gauge in the main cluster or gauge package cluster is inoperative, perform the following: 1 Check fuse 9 in the fuseblock module.
Food for thought in my diagnostics. Its good you checked the fuse and relay , but ultimately , is power reaching the fuel pump? I am all ears Did you by any chance notice the original post date? Try swapping in one that is good. Will also try changing the engine relays just in case. I guess I'll just wing it, and get a backup replacement from ebay just in case. Best of luck , greg92jeepxj Glad you got a relay to work with , any luck with fuel pump? That really only leaves a few wires under the dash to worry about.
The voltmeter on the jeep reads 15. Fuel pump is good 12V connected to it and it runs. Are there wires that have other common wires connecting? However,it did not work and I blew a fuse. If current is making it across fuse , now check terminal 85 in fuel pump relay. You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring harness, fuse box, vacuum diagram, timing belt, timing chain, brakes diagram, transmission diagram, and engine problems.
Work from the fuse box first — change the fuse out that controls those components, check out the fuse box for corrosion. Since you did not yet achieve your goal of getting your jeep running , I will state you did not as of yet complete your task. Now for the fun part. I've scoured these pages the last couple days, but can't find anything that matches my specific dilemma. Here are some pictures of my rusty 1990 fuel pump compared to a 1991.
The whole kit - exactly what is in the 3 photos in the previous post. Two things to do 1 Relay, maybe it is fubar. Let us know what you get. I previously had a '94 wrangler that had this same problem. And Thank You to all who have gone before me here, the info trail has been invaluable!! It's one of the previous answers I gave you. The switch is found behind the on-off lever by removing about 5 screws holding the part of the dash covering the guage windows.
You may need to register, but I think it's worth it. Strange how some are carbureted and some are electric in the same year. Here you will find detail explanation, illustration and description of each electrical system components, troubleshooting procedures and clear wiring diagram harness and schematics to make the troubleshooting easier. My issue is that it runs good for a bit and then suddenly it shuts off by itself. Danny Hi Danny, this one is killing me. Switch it with one of the others to test it.
Nov 10, 2009 Hey Mudkicker, Who ever thought of putting an electric fuel pump inside a tank of gas. You should have 5 volts on this wire with the key on. Obviously , current is not making to fuel pump harness at tank or engine would start. I had no desire to take on such a project but mine is still advanced for my skill level. You can also find other images like wiring diagram, parts diagram, replacement parts, electrical diagram, repair manuals, engine diagram, engine scheme, wiring harness, fuse box, vacuum diagram, timing belt, timing chain, brakes diagram, transmission diagram, and engine problems. Been online since 94 or so.
First , when you turn on the ignition before cranking , do you hear the fuel pump engaging? I will keep checking, but one thing I would try if I were you is go to Yahoo Answers and post there — I highly recommend a photo as well. We just links any topics about 1990 Jeep Wrangler Parts Diagram to many other sites out there. Ask them to break out he code reader. If you can make a fused jumper wire , after you change the filter , see if you can get a fuel pressure reading at the fuel rail. Symptoms and even faults can be similar but the cause or source could be different. Then, try to start the engine. Disconnect the wiring harness connector to,the fuel pump.