Fuel pump question
Thread Starter
Junior Member
Joined: May 2006
Posts: 72
Likes: 0
From: IL
Car: 1989 Pontiac Trans Am
Engine: Small Block 400
Transmission: 700R4
Axle/Gears: 2.73 Limited Slip
Fuel pump question
Hey guys, I found an 89 trans am thats a steal, but doesnt run due to a bad fuel pump. I heard there is a secret to getting the pump out easier, by cutting a hole above the gas tank or something similar..does anyone knwo about this and could provide help..? Thanks
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Don't hack up the car. Do it right and drop the tank.
(Now all the car hacker uppers can chime in with their side.)
(Now all the car hacker uppers can chime in with their side.)
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
I agree - do the fuel pump the right way - it's not that hard, just time consuming (8 hours alone).
Are you 100% sure it's a bad fuel pump? Maybe the relay, or the oil pressure sending unit - worth testing those two things before replacing the fuel pump.
Are you 100% sure it's a bad fuel pump? Maybe the relay, or the oil pressure sending unit - worth testing those two things before replacing the fuel pump.
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Another vote for doing the fuel pump the right way. My first fuel pump change took only 2 hours with the use of simple hand tools and two jack stands. I still to this day don't know what is so hard about it. IMHO it would take longer to properly fabricate a hatch than it would two just drop a few suspension parts and remove some straps (and fuel neck hose mount screws).
another vote for dropping the tank. The only other thing I'd change is cutting the filler neck at the tank and splicing it back with double-clamped hose but even that's not needed. I've gotten good at dropping exhaust and suspension.....damnit
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