Bad fuel pump?
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Joined: Mar 2007
Posts: 131
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From: Centreville, MD
Car: 1986 Firebird
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42s
Bad fuel pump?
Turning the ignition on I do not hear the pump kick on. I tested for power on the tan wire with my multi meter, got nothing. I ran a hot wire directly from the battery to the "G" terminal on the ALDL, no pump. I then ran that hot wire directly to the tan wire at the bulkhead inside the car, no pump. Am I missing anything or is it time for a holley blue?
Here is a picture of the "tan" wire just to make sure I am sending juice to the right one.
Here is a picture of the "tan" wire just to make sure I am sending juice to the right one.
Joined: Oct 2001
Posts: 12,221
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Thread Starter
Member
iTrader: (2)
Joined: Mar 2007
Posts: 131
Likes: 0
From: Centreville, MD
Car: 1986 Firebird
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42s
Re: Bad fuel pump?
Very interesting. If it turns out mine is junk I will definitely look into that pump.
You have one on your car?
Joined: Oct 2001
Posts: 12,221
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Bad fuel pump?

get your voltage/issues figured out 1st tho.
Last edited by TTOP350; May 28, 2012 at 12:19 PM.
Thread Starter
Member
iTrader: (2)
Joined: Mar 2007
Posts: 131
Likes: 0
From: Centreville, MD
Car: 1986 Firebird
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42s
Thread Starter
Member
iTrader: (2)
Joined: Mar 2007
Posts: 131
Likes: 0
From: Centreville, MD
Car: 1986 Firebird
Engine: 2.8
Transmission: 700R4
Axle/Gears: 3.42s
Re: Bad fuel pump?
On top of the things mentioned above, I just checked the inline fuse on the inner fender and it was fine.
I am starting to think about the fuel pump relay, but I am not 100% sure I checked for power at the pump the right way. Looks like I can't get the pump to run off power from the car or by jumping power to it.
I am starting to think about the fuel pump relay, but I am not 100% sure I checked for power at the pump the right way. Looks like I can't get the pump to run off power from the car or by jumping power to it.
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