Recently replaced my stock intake manifold with a new doorman one and also replaced the up flow o2 sensors in my 2002 mustang gt with 141k miles (the car is tuned and the down flows are disabled) . About 2 weeks after i replaced the two i started to notice a bad stutter after wot (appears at around 4k - 4.5k rpms). The car begins to stutter, the exhaust seems to cut in and out with the stutter, and there is a strong oil smell after. The stutter lasts for about 10 - 30 seconds and then the car seems to be fine after. This has me stumbled and i cant seem to figure out the issue myself. Bad valve seals? Thanks for any suggestions.
Bad Stutter After Wot
- Thread starter Dremxx
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wmburns
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There are two areas that I would rule out at the beginning.
Howto perform charging system voltage drop test
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- Voltage drop caused by alternator brush bounce
- weak ignition cutting out at times of high cylinder loading.
- all of the above.
- something else
Howto perform charging system voltage drop test
Howto perform charging system voltage drop test
To anyone else reading any of my posts I usually include the line: Today's cars simply will not run right without a strong battery and charging system! Cut corners here at your own risk I'm a big believer in starting with the basics. As such I...
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