Help - 91 Isuzu Rodeo

You might have to check for water in the system. I have seen this case before where someone has played and poured water in the gas tank.

Sounds like the fuel pump isn't running.

I think that, for now, we can ignore water in the fuel.

Normally, when you first turn your ignition switch to the on position (not start) the fuel pump will run. If things are quiet, you can hear this. It runs for about 2-5 seconds and you can hear this from the drivers seat.

Some fuel pumps have a circuit breaker. This may have tripped.

That's all I know.

its just really weird cause i only has 90 000miles on it but i has been sitting for a while is there a anti-theft system at all

Check the owner's manual. Or contact a dealer with the list of options (should be on the glove box door) They should be able to tell you if it has one, and how to reset it. If it does not try looking for some of the posts here covering Chevy Cavilers. We have gone through the fuel supply system so many times,on them, that we may as well just send the posts to all registered Caviler owners.

Welcome to the insanity.

http://cr4.globalspec.com/thread/56454/1991-Isuzu-Amigo-Fuel-Pump-Problem

The above thread dealt with the same problem as you have. This will give you some ideas on what to test for. Please test before throwing money at it. Good luck.

i really think now it is the anti-theft has kicked in b/c the heater or radio dosent turn on .......now im stumped and i have a brand new fuel pump installed today still wont start

I'd double check the new switch to make sure it was exactly like the old one, and is plugged in properly. If someone was messing with the old switch, they may have blown a fuse somewhere. Heaven help you if the vehicle has fusible links, I hate them. They are hard to find and diagnose.

i got one out of a 1992 and its the exac t same one everything looks the same its weird now b/c the heater and radio and fuel pump dont come on only when the engine is turning over ???weird

"its weird now b/c the heater and radio and fuel pump don't come on only when the engine is turning over ???weird"

If I understand this correctly, the heater, radio and fuel pump are only working when in the start position, but the engine will not start.

If this is the case, you may not have the ignition switch adjusted correctly. By sliding the switch up and down on the two mounting bolts, you can move the point at witch the switch functions work, relative to the key positions. (key remove position, and spring loaded position.)

What has worked for me is this. rotate the switch till heater, radio, and fuel pump are all working. Then slide the switch in the upward direction till you start to feel the spring. Then back away from the spring until you JUST loose the spring. Then tighten the two bolts. Try that and let us know. Good luck.