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Rough idle why?

Ford Mustang 2014 5.0 V8 99000 miles
When ever the car is on idle the RPMS keep moving up and down and the car starts shaking when it lowers anyone know what to do?
JayB from Canada 2 years ago  
JA
1 report 
Coyote14 from Canada 2 years ago
Try consulting a tuner
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