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Blow off valve - Help

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blow valve
2K views 1 reply 1 participant last post by  KenLJr 
#1 ·
Good morning - all

Quick question, How do you check to see if your blow off valve is working correctly ?
Sometimes, I get a good amount of boost (ie, up in to the upper part of the gauge) Park the car for a hour or so - start out again, needle only goes about half way up, if I am lucky.
Replaced the vacumn lines with silicone lines - only one I didn't replace was the one that goes into and thru the aquarium. I know the bov bleeds excess boost back into the system, could it cause a low boost problem ?
 
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