Hello, I recently picked up a '91 TA with the 5.7 in it for a project car for my son and I. When I went to check it out the guy said the fuel pump had gone out and couldn't start it. I suggested to make sure that it would run, we'd spray some starter fluid into the air filter which we did and it'd run for a couple short seconds and I didn't hear any rod knocking sounds so that was good. I got it home the other day and before I went into replacing the pump wanted to check the electrical first. I located the pump relay and have power there but the relay doesn't click while cranking. I decided to try jumping the orange main power to the gray (which I had found is supposed to be the pump wire) hoping for it to make the pump hum, no luck there nor did the car start. So I need to wait for my son to get back home from a church trip to help test it further. Seems that if the relay was bad the car should have started with the direct jumping at the relay. Once I determine if the wiring is actually good up front, I want to check the back section, TIA for any help that this forum members can offer.

 

Your doing the testing right, the next step would be to pull the body connector bye the pump and see if you have power ther with the relay bypassed.

 

Thank you Tuned Performance,
Correct, I am doing the testing myself. Is this connector accessible without the tank being dropped? I haven't dropped it yet and actually I was hoping for a relay or small electrical issue instead of having to drop the tank.But I'm up for it if need be.

 

You can get to the connector without dropping the tank. It’s in front of the tank. You could jumper the relay and use a test light or ohm meter by yourself. Jacking the car up and putting it on jack stands will help a lot.

 

 

Thank you so much for the great information and the picture that you posted also. Your help is greatly appreciated.