Question about 1997 Ford Mustang Cobra

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97 mustang power loss at 4000 rpm seems like it wants to go but won't doent do it when cold only after runing for about 15 minutes seems like it bogs down

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  • Ford Master
  • 2,620 Answers

Sounds like a weak fuel pump or clogged fuel filter.Check your fuel pressure it should be 30-45 psi with key on and engine off.

Posted on Feb 24, 2012

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6ya6ya
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Posted on Jan 02, 2017

chuck943
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SOURCE: Hesitation and loss of poer at 4000 rpm

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

csmock132
  • 4669 Answers

SOURCE: Mustang, 1992 2.3L dual point OBD 1 error codes problem

Have you checked for spark on all 8 plugs? Unplug the exhaust side coil pack and run the engine. Does it run on all 4 cylinders?

Posted on May 27, 2009

leethedeuce
  • 4472 Answers

SOURCE: 97 ford mustang.the fan won't change positions

First thing I would check is all of your vacuum lines. I had same problem and turned out there was a split in one of my vacuum lines. Once I repaired it, it worked perfectly again.
thanks,
Lee

Posted on Jul 26, 2011

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97Gt mustang bogs at 4000 rpm no power after 4000 runs not missing but just feel like it won't go does it when the car warms up from a cold run does not do it after 10 minutes it starts to to it c


Sounds like you have the famous cam position failure.Dont rely on a code it wont give you any By the way does the idle roll and surge ? Then its definately your cam postion sensor

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97 ford mustang.the fan won't change positions


First thing I would check is all of your vacuum lines. I had same problem and turned out there was a split in one of my vacuum lines. Once I repaired it, it worked perfectly again.
thanks,
Lee

Jul 26, 2011 | 1997 Ford Mustang Cobra

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