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2001 Pontiac Aztek Question: fuel pump

 

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Eloy, 3.4L V6, Albuquerque, NM, March 29, 2011, 21:15
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signs of fuel pump malfunction

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  • Answer #1

    DaveJHM March 29, 2011, 21:39
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     Master

    Have a fuel pressure test performed to determine if your pump is functioning appropriately.

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  • Answer #2

    patrick mannion from Greg Solow's Engine Room, March 29, 2011, 22:26
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     Master

    Low fuel pressure will cause fuel starvation under load on acceleration resulting in a loss of power, (lean running condition)Too much fuel pressure is caused by a restricted fuel return line or such. As Dave said get pressure verified using a fuel pressure gauge to verify pressure and volume is OK.

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