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Discussion Starter · #1 ·
Came across a boost leak after I pressurized the system with ~15 PSI. The leak is coming from the intercooler inlet pipe/hose, Where the plastic elbow clips onto the intercooler itself. There is a orange seal in there that I suspect may have worn down since this part can rotate on the intercooler. If I push on the pipe while its pressurized I can get it to stop leaking, It feels like it just needs more pressure on it to make the seal.

Has anyone else encountered this issue? I'm loosing boost because of this leak. I can only get about 18-19 PSI when the ECU is commanding 22.
 

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Came across a boost leak after I pressurized the system with ~15 PSI. The leak is coming from the intercooler inlet pipe/hose, Where the plastic elbow clips onto the intercooler itself. There is a orange seal in there that I suspect may have worn down since this part can rotate on the intercooler. If I push on the pipe while its pressurized I can get it to stop leaking, It feels like it just needs more pressure on it to make the seal.

Has anyone else encountered this issue? I'm loosing boost because of this leak. I can only get about 18-19 PSI when the ECU is commanding 22.
Yes i have a leak as well. Are you losing coolant because of this?


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Discussion Starter · #3 ·
Nope no coolant loss just performance :/

If you're losing coolant in the charge pipes I would think your turbo might be leaking, Any water in your oil too?
 

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Came across a boost leak after I pressurized the system with ~15 PSI. The leak is coming from the intercooler inlet pipe/hose, Where the plastic elbow clips onto the intercooler itself. There is a orange seal in there that I suspect may have worn down since this part can rotate on the intercooler. If I push on the pipe while its pressurized I can get it to stop leaking, It feels like it just needs more pressure on it to make the seal.

Has anyone else encountered this issue? I'm loosing boost because of this leak. I can only get about 18-19 PSI when the ECU is commanding 22.
I checked a week ago and i have a lot of oil around the same place, the connection between the pipe and the intercooler.

Did not know the had a orange seal in there. I will check mine out to day and see whats going on.
 

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You're missing the check valve in the intake manifold.

Pop off the corrugated pipe to the top of it & look for an orange dot inside.

See this thread:
http://www.cruzetalk.com/forum/34-g...4-pcv-valve-cover-intake-manifold-issues.html

I already did the check valve fix, because mine was gone. Ii haven't cleaned the area of the piping yet after the fix, so it may have stopped. I will try to clean it today and drive it the entire week to see if it still leaks.

Totally forgot about that, but thanks for the reminder.

Will keep everyone posted.
 

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Discussion Starter · #7 ·
Mine has oil residue in the pipe, not enough to cause concern... What you would find out of a usual PCV system.

Anyone else have a boost leak here though?
 

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Discussion Starter · #9 ·
Could you tell me how you pressurized the system? I seem to have a leak too and want to find out.
I found a pipe that was the same diameter as the silicone intake elbow and then took a cap for a pipe and drilled and welded a socket to it so I could gear clamp a air hose to it. Incredibly ******* but the stores were closed so I had to make do with what I had in the garage ;)

Getting the correct size PVC pipe with a rubber/silicone coupler and drilling and installing a valve stem into it would be the best way of doing it. Though you just need to keep the system holding at least the amount of boost you're making (Stock boost is from 12-17 PSI I believe)
 

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Did you also unplug the pipe from the the throttle body and plug it shut? or did you test with it normally plugged in so that the pushed air would go into the motor? I was told I need to plug that one also and push air into the system from the intake elbow restraining the air only from intake elbow until the map sensor.
Little confusing....
 

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Discussion Starter · #11 ·
Did you also unplug the pipe from the the throttle body and plug it shut? or did you test with it normally plugged in so that the pushed air would go into the motor? I was told I need to plug that one also and push air into the system from the intake elbow restraining the air only from intake elbow until the map sensor.
Little confusing....
I didn't need to do that to find this leak, I could hear air hissing out of the join, But that would make sense, depending on if the intake valves were open (or if they are leaking) you would loose pressure if you pressurized the system
 

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Did you also have any pending P1101 codes because of the leak (the service vehicle wont light up if it's just pending)? Any hesitations from the motor while accelerating? What about fuel trims? Aren't they off?
 

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Discussion Starter · #13 ·
Did you also have any pending P1101 codes because of the leak (the service vehicle wont light up if it's just pending)? Any hesitations from the motor while accelerating? What about fuel trims? Aren't they off?
Not leaking enough boost for it to be out of the threshold, No codes set or pending, Everything is good just can't make the requested boost from the ECU, I think It could be the wastegate also
 

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Ok so I know that my intercooler Inlet pipe has a gasket but is the outlet hose supposed to have a gasket also? Mine seems to be gone
 

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Can you buy just the gasket?
 
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