BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 Caprice fuel issues

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GasTT



Posts : 2675
Join date : 2009-01-19
Age : 28
Location : Treasure Coast, FL

PostSubject: Caprice fuel issues   Fri May 10, 2013 12:49 pm

Some of us Badasses were talking about car problems and I brought up my Caprice, the coolant temp sensor was suggested to be a culprit. I got it started and it was running like crap. I unplugged the coolant sensor in the pump and it starts up and runs GREAT.

Now, the main issue is that the fuel pump does not self prime. I cleaned the grounds on the coil, and they are all intact. Any other suggestions?
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Cadet57



Posts : 4476
Join date : 2010-03-14
Age : 29
Location : Chicopee, MA

PostSubject: Re: Caprice fuel issues   Fri May 10, 2013 1:32 pm

GasTT wrote:
Some of us Badasses were talking about car problems and I brought up my Caprice, the coolant temp sensor was suggested to be a culprit. I got it started and it was running like crap. I unplugged the coolant sensor in the pump and it starts up and runs GREAT.

Now, the main issue is that the fuel pump does not self prime. I cleaned the grounds on the coil, and they are all intact. Any other suggestions?

Fuel pump grounds? I know the wagon one is on the frame.
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Ironfistdog



Posts : 2124
Join date : 2011-01-11
Age : 35
Location : Warren, MA

PostSubject: Re: Caprice fuel issues   Fri May 10, 2013 2:39 pm

Pump won't turn on at all? Or just runs and doesn't reach psi at the regulator?

If it's running and doesn't reach pressure you might have a cracked line INSIDE the tank.
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sdstick



Posts : 4278
Join date : 2009-03-20
Location : Revere, MA

PostSubject: Re: Caprice fuel issues   Fri May 10, 2013 3:25 pm

Sender grounds in trunk drivers side hinge

Fuel pump relay? Underhood fuse box.

Did you say you did the pump & sender once?


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Steve


96BBB 28K 3.42 Bolt-ons
95BBB 100K 3.73 383 New DD...already broke fixt the 4L60E twice
95 Black WB4 Hole...ee...grail
96 Black WB4 No holes in this
95BBB 189K 3.08 Old DD Stolen...by Matt. Cool
Whine..eee...Silver LS6
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GasTT



Posts : 2675
Join date : 2009-01-19
Age : 28
Location : Treasure Coast, FL

PostSubject: Re: Caprice fuel issues   Fri May 10, 2013 3:50 pm

I did the pump but not the sender. Relay is good. I can manually prime the pump via test wire. After that it runs fine. Problem in key on = no prime. Today I put in my stock wagon 94 computer and a new coolant temp sensor. Runs good now. I'm going through the fuel pump diagnostics today.
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PostSubject: Re: Caprice fuel issues   Today at 6:07 pm

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Caprice fuel issues
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