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First no start, then no fuel pump after sitting three days

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Old Jul 24, 2007 | 04:34 PM
  #1  
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From: EC, WI
Car: 1988 IROC
Engine: 350 TPI
Transmission: 700 R4
Axle/Gears: 2.77
First no start, then no fuel pump after sitting three days

After replacing the ignition switch and disarming stupid viper alarm, my mechanic was able to get my car to run again. Now, if it sits the pressure bleeds down and the fuel pump will not engage when the key is turned. It will start like it has a carb on it and then run fine. It starts normal if started every other day. He suggested a manual switch to prime the fuel pump, I want it fixed right. Someone here knows! Please help. Thanks. Eric
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Old Jul 24, 2007 | 04:36 PM
  #2  
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: First no start, then no fuel pump after sitting three days

Check your fuel pump relay and associated wiring.
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Old Jul 24, 2007 | 04:39 PM
  #3  
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From: EC, WI
Car: 1988 IROC
Engine: 350 TPI
Transmission: 700 R4
Axle/Gears: 2.77
Re: First no start, then no fuel pump after sitting three days

fuel pump relay has been replaced with new GM unit, the mechanic has tested the wiring in many places, which he said has been done before, which makes me think it was a long standing problem. People lie often when they sell cars...
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Old Jul 24, 2007 | 08:32 PM
  #4  
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From: EC, WI
Car: 1988 IROC
Engine: 350 TPI
Transmission: 700 R4
Axle/Gears: 2.77
Re: First no start, then no fuel pump after sitting three days

The real issue now is the fuel pump not energizing after bleeding down. Why would it do this?
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