Need Help Fast

whitepony · 05-08-2004, 10:17 AM

ok i just installed another fuel pump it was out of my car before. anyway i installed the pump and got it all back in and it wont run now i tryed the reset button and still nothing. could the be a bare wire cosing it not to turn on or run ( i did shrink tube them but maybe gas got in some how). should i try anything or just start over and take it out agian.

anything will help thanks
mike

~The Jester~ · 05-08-2004, 11:37 AM

If the wires were shorted, not running would be the LEAST of your worries. The fire would take car of that.

There is a fuel pump relay that sounds like your culprit. Under the hood, you should hear it click when the key is turned on. Autozone can tell you where it is, and I think they're fairly cheap too.

whitepony · 05-10-2004, 02:20 PM

i can here the relay click when i try to start it but the pump wont come on.??? i stuck on ideas of what to do.!

crazypete · 05-10-2004, 02:54 PM

Ok, do this systematically and remember, there is an ELECTRIC component that may be malfunctioning sitting in 15 galons of gasoline back there. Snake your hand to the back of the pump and yank it's harness off. Stick a pair of long wires and energize the key as you check the voltage. If there is still no voltage, the relay is under the driver's seat. If you are supplying voltage and no pump operation, get that thing out of there! Test it out of the car. Hook up the pump out of the tank and try and get it to run.

To verify proper relay operation, there is a wire in the EEC harness that, if grounded will run the pump nonstop. I think it is the last wire opposite the test connector (or something like that, I havent had an eec in years non). It's used for testing things such as what you are encountering.

Heck, if it doesnt work now, how much reliability can you expect out of it in the future?

HISSIN50 · 05-11-2004, 10:39 PM

i like what the other guys are saying.
Jester, the FP relay did not move to the pass side under the hood till late 92....

i agree with CP about all the safety stuff. when you check the FP relay terminals, that will tell you a lot. the puter sends ground to the relay.pump feed juice comes via a fusable link off the solenoid. and the aforementioned inertia switch.....
IIRC, the a/c relay is the same as the FP relay - might be worth confirming that to be true and doing a quick swap of relays for testing, since it sounds like the relay is atleast attempting to energize.
but knowing what you are missing at the FP relay terminals might help with diagnostics.
be real careful and good luck.

whitepony · 05-12-2004, 01:27 PM

ok i am going to try the ac realy in the fp realy but were is the ac realy?? is it the one on the drivers sid by the coil???

i am going to try the rest of the stuff crazypete said tonight
thanks

05-08-2004, 10:17 AM	#1
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	Need Help Fast ok i just installed another fuel pump it was out of my car before. anyway i installed the pump and got it all back in and it wont run now i tryed the reset button and still nothing. could the be a bare wire cosing it not to turn on or run ( i did shrink tube them but maybe gas got in some how). should i try anything or just start over and take it out agian. anything will help thanks mike

05-08-2004, 11:37 AM	#2
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Fuel pump If the wires were shorted, not running would be the LEAST of your worries. The fire would take car of that. There is a fuel pump relay that sounds like your culprit. Under the hood, you should hear it click when the key is turned on. Autozone can tell you where it is, and I think they're fairly cheap too. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

05-10-2004, 02:54 PM	#4
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	Ok, do this systematically and remember, there is an ELECTRIC component that may be malfunctioning sitting in 15 galons of gasoline back there. Snake your hand to the back of the pump and yank it's harness off. Stick a pair of long wires and energize the key as you check the voltage. If there is still no voltage, the relay is under the driver's seat. If you are supplying voltage and no pump operation, get that thing out of there! Test it out of the car. Hook up the pump out of the tank and try and get it to run. To verify proper relay operation, there is a wire in the EEC harness that, if grounded will run the pump nonstop. I think it is the last wire opposite the test connector (or something like that, I havent had an eec in years non). It's used for testing things such as what you are encountering. Heck, if it doesnt work now, how much reliability can you expect out of it in the future? __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

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05-10-2004, 02:20 PM	#3
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	i can here the relay click when i try to start it but the pump wont come on.??? i stuck on ideas of what to do.!

05-11-2004, 10:39 PM	#5
HISSIN50 Registered Member Join Date: Mar 2004 Posts: 62	i like what the other guys are saying. Jester, the FP relay did not move to the pass side under the hood till late 92.... i agree with CP about all the safety stuff. when you check the FP relay terminals, that will tell you a lot. the puter sends ground to the relay.pump feed juice comes via a fusable link off the solenoid. and the aforementioned inertia switch..... IIRC, the a/c relay is the same as the FP relay - might be worth confirming that to be true and doing a quick swap of relays for testing, since it sounds like the relay is atleast attempting to energize. but knowing what you are missing at the FP relay terminals might help with diagnostics. be real careful and good luck.

05-12-2004, 01:27 PM	#6
whitepony Registered Member Join Date: Feb 2003 Location: ontario canada Posts: 165	ok i am going to try the ac realy in the fp realy but were is the ac realy?? is it the one on the drivers sid by the coil??? i am going to try the rest of the stuff crazypete said tonight thanks