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2009 CTS AWD DI
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Discussion Starter #1
driving on highway going about 65-70 mph. Car starts jerking back and forth and loses power. Drop down to 45-50 mph misfire stops but you can feel the car still has no power. Go to the nearest cadillac dealer, name i wont mention. Was told coil # 3 and spark plug was shot. Got it changed. after the service i noticed the car isnt a 100%. (Only on the highway). Going anywhere from 60-75 mph and releasing the pedal then Lightly giving it gas to speed back up it sort of feels like it has no power and as if the car will misfire again. You can feel it in the engine and the vibrations through the gas pedal? Any suggestions on what to do and check? 61,000 miles. 09 CTS 3.6L AWD
 
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