Mechanics

CHEVY NEW FUEL PUMP NOT WORKING

1998 Chevrolet Suburban

Electrical problem
1998 Chevy Suburban V8 Four Wheel Drive Automatic 111000 miles

The truck died a couple of months back and I determined the fuel pump wasn't working. I replaced the relay and the pump. Now the pump is not working again. I also replaced the ignition control module. When I turn the key to the on position, the theft deterrent system makes a double clicking noise. I can't recall if that is normal. With the key on, I have closed the contact on the relay and still don't get the fuel pump on. The fuses are all good. I suspect that this is either the theft deterrent system or the ignition cylinder. How do I determine where the fault is before I pour more money into parts. Thanks for any help.
Avatar
Mattguitar
May 1, 2008.



Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks

Tiny
Buzzsaw
May 1, 2008.
Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks[/quote: 645c956fe8]

Turns over fine. The security light stays on for the first few seconds of cranking and then goes out.

It's a 5.7 (350) with single tank. Thanks for the quick response.

Tiny
Mattguitar
May 1, 2008.
Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks[/quote: 8900f61e0e]

Turns over fine. The security light stays on for the first few seconds of cranking and then goes out.

It's a 5.7 (350) with single tank. Thanks for the quick response.[/Quote: 8900f61e0e]

one other thing 1500 series or 2500 series

Tiny
Buzzsaw
May 1, 2008.
Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks[/quote: 80ccecd40c]

Turns over fine. The security light stays on for the first few seconds of cranking and then goes out.

It's a 5.7 (350) with single tank. Thanks for the quick response.[/Quote: 80ccecd40c]

one other thing 1500 series or 2500 series[/quote: 80ccecd40c]

K1500

Tiny
Mattguitar
May 1, 2008.
Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks[/quote: 3e77ec98da]

Turns over fine. The security light stays on for the first few seconds of cranking and then goes out.

It's a 5.7 (350) with single tank. Thanks for the quick response.[/Quote: 3e77ec98da]

one other thing 1500 series or 2500 series[/quote: 3e77ec98da]

K1500[/quote: 3e77ec98da]

ok hope your good with wiring diagrams, you can call me if you need some help reading them

765-387-0038

Tiny
Buzzsaw
May 1, 2008.
Does it crank or turn over? While its turning over is the scurity light on? Theft sys disables the starter

I need your engine size for a wirring diagram for the pump and if you have duel tanks[/quote: 3baf9f824d]

Turns over fine. The security light stays on for the first few seconds of cranking and then goes out.

It's a 5.7 (350) with single tank. Thanks for the quick response.[/Quote: 3baf9f824d]

one other thing 1500 series or 2500 series[/quote: 3baf9f824d]

K1500[/quote: 3baf9f824d]

ok hope your good with wiring diagrams, you can call me if you need some help reading them

765-387-0038[/quote: 3baf9f824d]

you my have to give me your e-mail so I can send them to you

David

Tiny
Buzzsaw
May 1, 2008.