boost leak

**fremmy182** · 10-22-2011

so out of nowhere my car has been having this boost leak, i checked all the vac lines and there all sealed good. Is there something im missing that can be causing this. and the hose to the boost guage has no holes.

**machinegunsquid** · 10-22-2011

Well...is the gauge just reading differently, or is there a physical boost leak??

First check would be to get a vacuum gauge to make sure theres no vac leak, and then check the BBV, to make sure it's operating properly.

**fremmy182** · 10-23-2011

the guage is fine, i hear the boost leaking. how do i tell if the bbv is bad

**Fivefingerdeathpunch** · 10-23-2011

you can hear boost leaking??????

What is the gauge reading? Should be around -19ish at idle and -10 to -14ish while crusing. And should average around 6-7 psi at WOT.

You only produce boost above 0 psi, so your hearing a vac leak if anything.

**fremmy182** · 10-23-2011

i get -19ish at idle and -10 to -14ish while crusing. but i only get 5 psi max on throttle. but during that throttle i just hear the air leaking. what does WOT mean. (without throttle?)

**Fivefingerdeathpunch** · 10-23-2011

wide open throttle

any mods?

and hearing a vacuum leak takes skill or its HUGE, i bet you are just hearing your intake

**BillBoost37** · 10-24-2011

If your boost pressure is lower than previously... likely the BCS is not allowing the bleed off that allows the BCA to open fully.

**fremmy182** · 10-24-2011

one of my friends said the boost solenoid could be going bad, the filter thing is falling apart. i looked online and i cant find any. is there like a special name for it?