C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

My 1987 Coupe won't start

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Old Apr 5, 2004 | 08:00 AM
  #1  
alfonso gomez's Avatar
alfonso gomez
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From: Toa Baja Puerto Rico
Default My 1987 Coupe won't start

The car started fine and I went to a friend's house about 3 miles from my house. When I was going to leave about an hour later I tried to start the engine, it "half started", began missing and immediately died. Tried to restart it and it was no go. The engine turned but would not start. I disconnected the electrical connection from one injector, connected a test light and had my friend start the car. The test light did not blink. Then I connected the + battery terminal to connector "G" in the ALDL and the fuel pump did not work, we could not hear it prime. We removed the fuel pump relay and put in a new one but it was no go. A nearby mechanic was called and he connected a fuel pressure gauge to the schraeder valve and fed 12 volts to the pump but the pump would not prime. The gauge read "O" pressure. He said the fuel pump went kaput. Is this test reliable? I am planning to remove the pump and test it outside the tank to verify that it is not working before I go and buy a new one. Any other suggestion? Why is it that I am not getting pulse in the injector? A broken pump can cause this? The mechanic said that the fuel pump malfunction does not cause the problem with the injector but he is not an expert in Corvettes. Right now I cannot read the codes because the battery is dead and I have to take it out to recharge it. Any help from you is really appreciated. This is my daily driver!!

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Old Apr 5, 2004 | 08:20 AM
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BILLYD
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Default Re: My 1987 Coupe won't start (alfonso gomez)

If the car has about 130k miles on it I'll bet the fuel pump is bad.
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Old Apr 5, 2004 | 11:21 AM
  #3  
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From: Less Talk, More WOT | Houston TX
Default Re: My 1987 Coupe won't start (alfonso gomez)

To start I would pull the gas door and boot out and check the voltage at the fuel pump connector :p:
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Old Apr 5, 2004 | 06:49 PM
  #4  
alfonso gomez's Avatar
alfonso gomez
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From: Toa Baja Puerto Rico
Default Re: My 1987 Coupe won't start (BILLYD)

Good news. I took out the pump, connected it to my battery booster and it ran, but only after I gave it a whack:smash: It ran for a while but stopped. I whacked it again, and it started to run again, so.......... I dropped it in the trash can and bought a replacement (Federal Mogul/Carter) for $85.00 including the sock. Installed it, charged my battery, and it started right away.
Thanks for all your help, guys :seeya
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