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Fuel pump wont prime

   
Old 09-25-2018, 07:25 PM
  #16  
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Originally Posted by duradek88
I've replaced the cps and last time I ran a constant 12v source one it never stopped priming and two I burned the pump up in the process
Fuel pump won't cycle once the engine is started it will run constantly, the fuel pressure regulator is mechanical and has no effect on pump ON/OFF. Only way a fuel pump could "burn up" is if it were run dry and even that wouldn't happen immediately.
If when using a DMM you have 12V at the fuel pump connector when:
starting the engine for about 2 seconds
and
constantly when the engine is running,
if the fuel pump doesn't operate, it's the pump.
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Old 09-25-2018, 07:38 PM
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Got the fiel pump on it was a ground... man I feel like a jackass thanks for all your help guys ....
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Old 09-25-2018, 07:46 PM
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bam! thanks for the follow up.
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Old 09-25-2018, 07:59 PM
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Create yourself a better ground near the connector. You won't regret it.
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Old 09-26-2018, 02:27 PM
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Note from DJ
Which ground was defective; the one behind the spare tire or the one on the side of the engine that the Power Control Center depends on?
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