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Old 05-14-2017, 10:13 AM   #1
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Join Date: Jan 2012
Default vacuum line question

I have a b230ft swapped volvo 240 with lh2.4 it has a Garrett t25. the recirculation valve there is a little one way valve. My problem is that it holds vacuum all the time so the valve stays open so boost is crap. How is it supposed to function? I had to make a small hole in the vacuum line after the valve so it wouldn't hold vacuum under boost but that's not proper.

edit: it also stalls or stumbles if you go from boost to brakes, normally it doesnt stall but you boost hard and try to come to a complete stop immediately or like do a burnout and just stop it will stall.

Last edited by whitey5150; 05-14-2017 at 01:52 PM..
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Old 05-15-2017, 09:51 AM   #2
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Join Date: Sep 2012

Where do you have the line hooked up?
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