Ford Mustang Forum - View Single Post - I feel my auto 5.0 GT lost some oomph
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post #38 of (permalink) Old 11-23-2015
Blazin72
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Joined: Sep 2010
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If you had a catalytic converter problem significant enough to be causing a problem you would be getting check engine light.

If you're concerned your car isn't accelerating like it should but seems to run fine you may look at the parking brake to see if it's dragging a little bit. Other than that I question whether there's actually a problem or not.
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