Log in

View Full Version : SR20 not holding boost?


Sean P.
08-31-2009, 10:40 AM
I have a blacktop SR with a stock T25 on it and have had no problems up until today.

I was driving home and went to go into boost and my car got to full boost and then just like dropped all pressure and made a kind of lame squeal noise (have a blitz bov), thinking it was just a fluke thing I shifted into third and went into boost again this time just fine so I was like eh no big, but then it did it again, mid boost just drops all pressure.

You can hear a slight ticking/vibration from the engine.

Not really that mechanically sound so coming here to ask for help.

Sean P.
08-31-2009, 11:31 AM
Tried to drive it up the block to schucks, cant get the car past 2k RPM without hearing a loud click and then the car starts to buck, got home lifted the hood, revved the engine up to boost and it doesn't really dump there is just a really loud click

clark
08-31-2009, 11:42 AM
Tried to drive it up the block to schucks, cant get the car past 2k RPM without hearing a loud click and then the car starts to buck, got home lifted the hood, revved the engine up to boost and it doesn't really dump there is just a really loud click

sounds sorta like an exhaust leak or boost leak.

you have to clarify what you mean by the click though...

vid would be good.

Sean P.
08-31-2009, 11:50 AM
I'll try to get a video but I don't live at home so I don't have my camera or anything.

Click sounds like something snapping shut

EDIT: Forgot to say this, it's just a singular click, not a repeated one.

EDIT 2: Friend suggested wastegate could have become unplugged so its not opening and just snapping shut, checked all vacuum lines, plugged in fine to wastegate, throttle body, and BOV.