5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

rpm's acting crazy

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Old 08-18-2008, 09:23 PM
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86whitepony
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Default rpm's acting crazy

so my car is acting up and cutting in and out, so i replaced my tfi module to tune it up. and my tach starts going crazy after 3k sputtering all over the place and won't read over 4k. it stopped some of the driveability issues and the tfi is brand new. any thoughts?
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Old 08-18-2008, 09:49 PM
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mjr46
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could be a bad connection in the wiring to coil, bad coil or stator in the dizzy ect ect....
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Old 08-18-2008, 10:00 PM
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Joel5.0
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... you may also want to check this case as a possibility. LUK
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