Question about 2001 Nissan Quest

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No power in a pull when you are traveling you loose power and it kicks down but looses speed and power when it kicks into passing gear it goes to 4000 rpm no farther and then it looses speed and rpms even on a straight stretch it will not keep a good speed

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It could be a number of different things. It could be leak gasket, bad throttle positions sensor, weak fuel pump or just simple as a leaky vacuum line or plugged fuel filter. I would check compression in each cylinder first to rule out gasket leak

Posted on Jul 02, 2009


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Get the car tuned up, you might have failing sensors or ignition problems causing a general loss of power that is needing kick down on hills.

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Sounds like a cv joint has failed. Have you ever noticed a clicking sound while turning and the car is in motion? If so, I am almost certain that one or all of the cv joints have failed. If this proves to be the case, it is a complicated repair and should be referred to a competent and certified mechanic.

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There may be a loose or split intake (Boost) hose.
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Regards MMP

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