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Old 01-18-2012, 08:08 AM   #1
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Fuel pump

From my understanding u should hear the fuel pump wine right before u start the car to prime it but I don't think I should be still hearing it 1 hr later
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Old 01-18-2012, 08:47 AM   #2
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A lot of fuel pumps are different on how loud they whine while pressuring up, one sign of them going out is excessive whine. How does yours idle at normal operating temp?
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Old 01-18-2012, 08:58 AM   #3
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Rough and I have done all of the rough idle tricks and still no luck . Cold it's fine warm 140 up runs like a drunk horse hick up hick up
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Old 01-18-2012, 09:07 AM   #4
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Mine did something similar at warmer temp and it turned out to be fuel pump, ive never even heard my stock one prime. I did all the old tricks with cleaning everything up on the electrical idle related parts including fuel filter and no change, swapped it out with a 255lph and it was a night and day change.
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