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2000 Mercury Mystique Question: My RPM's are speeding up. The engine revs but car doesn't speed up. Whats wrong



, 2.5L V6, Mccomb, MS, September 10, 2013, 18:56

The car jerks when the rpms go back down. Computer says erg valve or transmission range censor is bad which is it? How do I fix it.

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