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Discussion Starter · #1 ·
I did a pressure test today, and air is coming from the front of the valve cover, where it is cracked. I've known about it being slightly cracked for awhile, but should a ton of air be blowing through there in a boost leak test? What does this mean? Valve stem seal job was done 2-3 months ago.
 

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so a leaky valve cover can cause you to not hold boost? and you actually lose boost as well?? how hard is it to replace the valve cover...is there a guide somewhere? any tips and suggestion. I know one is not to overtighten them or else you will crack the valve cover...let me know. Thanks.
 
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