fuel pump relay

[jc racing]

I have a 1992 astro van that won't start. No fuel pressure. I want to check the fuel pump relay but not sure where it is. Can someone possibly help me locate the relay and how to test it. There are 3 wires going back to the tank. One has power. I assume one of the other 2 should have power when trying to start. I was going down the road and it just died on me. Any info would be greatly appreciated.

[2001 ASTRO DUDE]

I'm not sure where the fuel pump relay is located on a 92 but I just replaced mine this weekend on my 01. Mine was located in my fuse/relay box which on my 01 is located under my hood. I can check my Haynes manual when I get home and let you know maybe. The owners manual should give you the correct location if you still have it. I am somewhat electrically retarted so I can't tell you how to check the relay but you can check for voltage at the terminals where it plugs in. Mine was only $10 so it was not worth my time to check much.

[jc racing]

ok thanks wasn't the relay. found the fuse in the fuse panel for the pump. all that headache just because a 15 amp fuse was blown. i guess i should check the obvious.

[old_master]

Welcome to the forum!

There's a reason the fuse blew. If it blows again, post back in this thread and we can help you locate the problem.

[jc racing]

well the fuse keeps blowing. Was alright to start then might blow when you give it gas but now as soon as you put the fuse in it blows. Any suggestions?

[brcidd]

You've got a short circuit- something is grounding out- check all wires to the fuel tank for obvious tears, breaks, etc--also try unplugging you oil pressure sending unit- below distributor- and plug in a new fuse- If it does not blow the fuse- but a new sending unit- I have seen those cause shorts

[drew300]

Something I've found useful when checking for shorts is to put a lamp in place of the fuse.
It will glow brightly when the short is present, and then go dim / out when the short is removed.
Use something like a turn signal lamp, and connect it into the 2 posts where the fuse was - not 1 side to ground.
This will limit the current so the wires don't burn, but give you a good indication of when you found something.

[old_master]

Originally Posted by drew300

Something I've found useful when checking for shorts is to put a lamp in place of the fuse.
It will glow brightly when the short is present, and then go dim / out when the short is removed.
Use something like a turn signal lamp, and connect it into the 2 posts where the fuse was - not 1 side to ground.
This will limit the current so the wires don't burn, but give you a good indication of when you found something.

Great idea Drew! Been there and done that countless times... it works! I have also used a turn signal flasher to accomplish the same thing, when it stops clicking, short is gone. That's more of an "audible" thing if you're not in a position to see the light.