Question about 2002 Ford Mustang

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Hesitation and loss of poer at 4000 rpm

Once the car hits 4000 rpm it hesitates and kicks. Even with the pedal floored it won;t get up over 4000. Sounds like the problem is coming form the exhaust.

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Is it in park or neutral? I noticed the same thing on mine and realized that there is a rev limiter on the 02 3.8v6 that will not allow it to go over 4000rpm.

Posted on Feb 16, 2009

  • richard raffo Feb 23, 2013

    Yes the car is in park when it gets up to 4000 it hesitates


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It could be an exhaust restriction. Do you have a vacuum/pressure guage? If so you can check this at the DPFE sensor hoses. This will be either a black or a silver sensor at the back of the motor with a 3 wire connector and two rubber hoses hooked to the bottom of it these rubber hoses then hook to metal lines that go down to the exhaust. Unhook one of these hoses at the sensor then hook up the vacuum/pressure guage. It should read less than 1 psi at idle and 3 to 4 psi at wide open throttle. Any thing more is an exhaust restriction.

Posted on Jan 31, 2009

  • william rowley Jun 09, 2012

    it is missing one of those hoses so i will put one on and see



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