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-   -   Car won't boost at all...help (https://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/295504-car-wont-boost-all-help.html)

binh Sep 14, 2007 02:37 PM

Car won't boost at all...help
 
I was doing partial throttle today and it was boosting about 10psi when I heard a small pop.

I thought that maybe I blew a IC pipe but I checked them all and they are all secure (also have tbolt clamps on everything).

So I thought that since I was running 28+ on my stock turbo that maybe the turbo let go. I took off the intake and spun the turbo and checked for shaft play. Well it spins freely and there is no shaft play.

The car is on the aem ems with map sensor.

The car idles perfect. There is no white smoke or anything odd.

I checked any vacuum lines I could find to see if something blew off but I couldn't find anything.

The car will NOT boost at all. Not even 1 psi. The boost gauge won't go over 0 and it feels like I'm driving a honda civic.

Evoryder Sep 14, 2007 02:38 PM

you boost leak tested right?

bmguser Sep 14, 2007 02:39 PM

hole in the manifold or ic??

bluebyu36 Sep 14, 2007 02:40 PM

need to do a pressure test

binh Sep 14, 2007 02:42 PM

No I haven't done it yet. It happened on the way to work so I didn't have time to test it.

I just figured if it was any kind of leak the car would still boost somewhat.

It doesn't boost AT ALL.

I've blown a hole in a IC before and the turbo will still boost.

binh Sep 14, 2007 02:44 PM


Originally Posted by bmguser (Post 4745882)
hole in the manifold or ic??

Stock manifold.

Turbo would still boost with a hole in the IC.

Evoryder Sep 14, 2007 03:00 PM

if you something piereced your turbo like my old car you wont boost at all...i had no idea i had a hole in my turbo till i pressurized the system...trust me, the leak will be SCREAMING at you...i had a hole in my intercooler and couldn't pressurize pass 4psi...

binh Sep 14, 2007 03:01 PM


Originally Posted by Evoryder (Post 4745937)
if you something piereced your turbo like my old car you wont boost at all...i had no idea i had a hole in my turbo till i pressurized the system...trust me, the leak will be SCREAMING at you...i had a hole in my intercooler and couldn't pressurize pass 4psi...

Hole in your turbo? Can you clarify what you mean so it can help me troubleshoot.

Evoryder Sep 14, 2007 03:15 PM

a rock or bolt punctured my turbo on my 1.8T...could hear a loud hisss...no power(obviously) pressurize the system and lets quit guessing. Good luck

binh Sep 14, 2007 05:39 PM

Took the intake off and started the car and the turbo was spinning happily.

Took off the bumper and to my relief saw that the IC coupler had a tear the size of china in it. The tbolt dug into it and started a tear and I guess the 30lbs of boost did it dirty!

Sorry for wasting all your time.

Stock turbo for life!

Evoryder Sep 14, 2007 06:12 PM

what a waste lol ...


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