Fuel pump not priming?
01-20-2010, 01:35 PM
#1
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Location: Ft. Worth, Tx
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Car: 89 Camaro
Engine: 350 TBI
Fuel pump not priming?
My fuel pump isnt priming when i turn the key on? It will start however after the oil pressure switch builds some pressure, but it will die soon after. Ive replaced the pump, the relay, filter, pressure regulator, oil pressure switch, and the fuse by the battery.. Any ideas on why it isnt priming? Oh and im getting a code 54 from my SES which should be a given. Any help is greatly appreciated thanks!
01-20-2010, 02:41 PM
#2
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Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Being Fuelish
With car off, jump battery + to pin C of the pump relay (or the under-hood test connector) and listen for pump whine.
Post your findings.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
Post your findings.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards
When you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime,
and the nitwits that need headlights for a little rain
.
.
If People Drove Any Slower They’d Be Going BackwardsWhen you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime,
and the nitwits that need headlights for a little rain.
.
01-20-2010, 05:48 PM
#4
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Car: 89 FORMULA FIREBIRD, 86 CHEVY CAMARO
Engine: L98, LB9 RESPECTIVLY
Transmission: 700 R4 (BOTH)
Re: Being Fuelish
Code 54 = fuel pump circuit low. If the pump and relay are known to be good, it could be some worn out or damaged wiring.
01-25-2010, 08:57 PM
#5
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Car: 91 Z28 Convertible Camaro
Engine: LT1
Transmission: 4L60E
Axle/Gears: Borg-warner 3:27 gears
Re: Being Fuelish
I just had this same issue with my car an after 3 fuel pumps,2 fuel filters later i rewired the fuel pump fuse an ditto now its primes everytime and fires right up.
I hope this helpd
I hope this helpd
01-27-2010, 04:21 AM
#6
Re: Fuel pump not priming?
When my TBI car had that problem it turned out to be the thick, 10 gauge wire that's part of the positive battery cable. It had corroded through at the side post terminal. I used a big eyelet connector to hook it back up at the battery post and it fixed the problem. Took me a whole day to figure out. The wire was still attached to the battery cable, so I didn't notice how corroded it was until I wiggled the wire a bit and it fell out of the battery terminal. 
I had already replaced the fuel pump relay too.
I had already replaced the fuel pump relay too. 
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