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Discussion Starter #1
Hello everyone,

I have next door neighbor and he told me that his car is acting up very bad. I went over to his house and we both worked on his car. We changed the spark plugs, Wires, Fuel filter, Air filter and what including the MAF sensor.

First question where is the PCV Valve located on this car.[strongman]

Is a 2003 Ford Focus SOHC.

Also What can be causing this. He does have the engine light on on his car. The car engine will roar up and down up and down and soon will stall to the point the engine turns off.

Please let know what else we check in his car to see what else we can check.


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