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Discussion Starter · #1 ·
Wife was driving to work today and the car experieced a loss of acceleration at 40 mph. there seemed to be a slight shouldering. The car would change gear but it seemed laboured. Any sugestions.
 

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Dallas, Texas
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What year? How many miles? Single incident? Not a lot of info to blame transmission or engine.

Have codes read from engine and transmission modules.
 

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2002 ML55 AMG, 2005 Chrysler Crossfire Coupe Limited, 1999 C280
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Is the "check engine" indicator light on?

Have you access to an OBDII code reader?

If yes, what are the codes?

If no, go to Autozone (if you reside in the USA) and have them read for free.

Only then can members help you meaningfully.
 
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