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#1
05-03-2008, 10:43 AM
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PA Vacuum Question
On my 97 PA when the engine is running, if I remove the oil filler cap there is a noticeable vacuum and then the engine runs rougher. I put the cap back on an she is running prefect. Is this normal?
Also, where is the PCV located on this engine? Thanks! 
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#2
05-03-2008, 11:20 AM
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Re: PA Vacuum Question
The "vacuum" is an indication that your PCV is working as intended. If you want to know where it is and how to change it; Click Here
__________________
Knowledge can be communicated, but not wisdom!   
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#3
05-03-2008, 11:34 AM
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Re: PA Vacuum Question
There should be a slight vacuum in the crankcase. I don't believe it should run rough when the cap is removed. I'd change the PCV valve & check the condition of any O rings.
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