Quote:
Originally Posted by NiqueRouse  I have an 09 Mustang V6 SOHC. The check engine light is on and today I had an unusal thing happen. It has been slightly shuddering when idle and then when I shift to 1st, 2nd, 3rd gears it starts to shudder even more and this morning on my way to work the car cut off...I have been doing some research and have found it could possibly be the PCV Valve...curious to see if anyone else has had the same issue or knows what it could be...I'd like to save myself a little money if it's simple...etc... | It should be warranty ... take it to the dealer.
If you want to do it yourself you will need to pull the fault code. Autozone can do it for you
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2009 Mustang Shuddering Issue 
