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Enes, Volvo Master Technician
Category: Volvo
Satisfied Customers: 5555
Experience:  18 yrs+. experience as Volvo & ASE Certified Master Technician.
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Volvo(###) ###-####idle rough and reving up and down.If u cup the

Customer Question

Volvo(###) ###-####idle rough and reving up and down.If u cup the engine loom in your hand the engine runs perfect.We have changed crank sensor already and there are no air leaks
Submitted: 3 years ago.
Category: Volvo
Expert:  Enes replied 3 years ago.

Enes : Hello and welcome to our web page here my name is Enes I'm a Certified Volvo Car Expert Mechanic.I'm going to try today to answer your question.
Enes : did you adjust throttle and clean it ?
Enes : also mass air flow sensor can be bad
Enes : If you have egr neeed also be checked and clean out some cars don't have it