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

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Posts : 2675
Join date : 2009-01-19
Age : 29
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

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Age : 30
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

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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

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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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96BBB 28K 3.42 Bolt-ons
95BBB 100K 3.73 383 New DD...already broke fixt the 4L60E twice
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GasTT

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Join date : 2009-01-19
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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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