bov/bypass valve related question - TriStateTuners.com :: Home of Tristate Auto Enthusiast

03tarmacblack · 09-16-2005, 05:53 PM

Last couple days seems like my car wasnt running right, and that my bypass valve wasnt relieving pressure correctly ( stumble slightly after you let go of the gas). Just looking around I seen the little vacumn hose that connects to the valve was half tore right after the nipple ends on the valve. Would this be the cause of it running slightly unusual? I want to get some idea before I take her out myself and find out.

wgknestrick · 09-16-2005, 06:28 PM

Yes. The vacuum line is the actuator to the BOV from the throttle body. When the TB closes, it pulls vac to the BOV causing it to open and keeping your turbo wheel from rapidly decellerating. This is the whoobbble sound that you hear on throttle lifts.

Since yours has a hole in it, that vacuum that it normally sees is just sucking outside air in and not opening your BOV. Don't go on boost if possible until it is fixed.

03tarmacblack · 09-16-2005, 06:38 PM

Quote:

Originally Posted by wgknestrick

Yes. The vacuum line is the actuator to the BOV from the throttle body. When the TB closes, it pulls vac to the BOV causing it to open and keeping your turbo wheel from rapidly decellerating. This is the whoobbble sound that you hear on throttle lifts.

Since yours has a hole in it, that vacuum that it normally sees is just sucking outside air in and not opening your BOV. Don't go on boost if possible until it is fixed.

It was an easy fix, I just cut the vac. line shorter...I just posted here for reassurance, took the car for a ride and feels like the day I got tuned again

SilverTurboRidin · 09-17-2005, 09:09 AM

well atleast you got that solved man...i was about to tell ya the same thing about not driving it

09-16-2005, 05:53 PM	#1
03tarmacblack Tri-State Addict Join Date: Mar 2005 Location: Southampton - Phila. Member #219 iTrader: (0)	bov/bypass valve related question Last couple days seems like my car wasnt running right, and that my bypass valve wasnt relieving pressure correctly ( stumble slightly after you let go of the gas). Just looking around I seen the little vacumn hose that connects to the valve was half tore right after the nipple ends on the valve. Would this be the cause of it running slightly unusual? I want to get some idea before I take her out myself and find out. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

09-17-2005, 09:09 AM	#4
SilverTurboRidin Tri-State Post Whore Join Date: Feb 2005 Location: L-town PA Member #197 iTrader: (0)	well atleast you got that solved man...i was about to tell ya the same thing about not driving it __________________ Uhh used to be my dog you was in my left titty Scream RYDE OR DIE I thought you would die wit me Found out you a bitch you can't even ryde wit me Now it's a war you ain't on the side wit me To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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