Parking + Curb = no vacuum

[graf703]

So I was parking my car after its block and a half drive to school and I scraped the front end into the curb, just a little bit. The car started idleing really rough. Vacuum is about 10 mm. What could it have hitto make the vacuum go bad? The intercooler is to far back, right? I haven't had a chance to really get into it, there is snow on the ground and I've got class. Any suggestions on where to start?

 

[CarTrader29]

why dont you try checking the area you hit first and see what has happened before you ask any questions....

 

[gsxeclipse102]

i would start with the intercooler and lower intercooler pipe seeing those are the only things down there with the ability to affect vacuum.

 

[graf703]

so i got a chance to look at it. Whats the black plastic box between the intercooler and the turbo? Its broken, i taped up the crack but it won't hold boost. How unsafe is this to drive? Any cheaper fixes than getting a new one? Can I seal off the outlet to the box part and keep the plastic piping? (the crack is on the box) Thanks!

 

[Nanan]

That black plastic box is a surge chamber, basicly an open space to help absorb shock in the intake system. With it broken you are going to have a major boost leak which will damage the engine if left unfixed.

You can find aftermarket pieces to replace this broken pipe. They are often called LIC or S-pipes, I know RRE has them as thats whats on my car, but I am sure other shops have simular products.

 

[Defiant]

You won't have a vacuum leak from that. It's a boost leak. Vacuum only occurs between the throttle plate and the intake valves.