i have an 09 SS/TC today it was about 85 and really humid out and i had been driving for an or so then got out for about 10 min then got back in and started driving but my car was getting stuck around 5-8 lbs of boost instead of my normal 20 and it didnt sound right it had a nasty loud weird blow off sound then it stopped 5 min later any ideas on what it was my guess would be a sticking BPV since ive herd that can happen in hot weather?? help plzz

 

Doubt it's BPV. Check all pipes/IC and lines. Any mods?

 

ya i got a k & n short ram and injen IC pipes and they were all tight it wasnt them cause ive had them pop off and this was way diffierent

 

disconnect your purge solenoid, if it goes back to normal there you go. Mine just went out had the same problem, would boost 4=6 lbs, disconnected it, and its back to normal. Had no cel either.

 

Did you have to replace it?

 

well my new one is on order, there 24 bucks from the dealer or 12 bucks on ebay.. lucky for me the dealer didnt have it in stock, and its a holiday weekend lol

 

wheres that located at?

 

you will throw a code if it get's stuck

 

I see part has changed for 2010 cars:

Scroll down to *525* on this drawing:
You'll see TWO listed..2010 and 2008-2009

AP ENGINE ASM-2.0L L4 PART 6 INTAKE MANIFOLD & FUEL RELATED PARTS (LNF/2.0X); AU ENGINE ASM-2.0L L4 PART 6 INTAKE MANIFOLD & FUEL RELATED PARTS (LNF/2.0X); GK ENGINE ASM-2.0L L4 PART 5 INTAKE MANIFOLD & FUEL RELATED PARTS (LHU/2.0V);. Fits: Cobalt, H

12633354 ...it lists for $138! I found it for less, but still over $94.

12633411 was the previous part. Wonder what changed?

 

mine was stuck closed and never threw a code.