LBZ: Anti-freeze in y-bridge

[jdlover1]

Doing a egr delete on a lbz and notice some water poured out of egr pipe and ybridge neck is wet inside also. When i looked at intercooler boot i saw that the oil was milky colored in it. For giggles i looked at air filter and saw anti-freeze inside of it. Now how could anitfreeze make itself into the airbox all the way to ybridge? I checked the oil and it looked fine. Coolant level was at cold line and the guy hasnt put any coolant in. He just bought truck maybe a month ago. Truck is stock other than adII pump and tuning.

 

[blk smoke lb7]

I was going to say the egr cooler was cracked and letting some into the motor but the air cleaner? Im lost.

 

[skintback]

Coming from the turbo maybe

 

[jdlover1]

but how did anti-freeze get in air filter if its turbo?

 

[Operator1]

I was going to say the egr cooler was cracked and letting some into the motor but the air cleaner? Im lost.

Could be either, I'm sure it barked the turbo at the last pull and that blew a/f out to filter. I would think more likely egr though

Coming from the turbo maybe

 

[jdlover1]

think im just gonna pressureize system and see if any comes out of turbo

 

[LBZ]

My guess is a bunch of coolant came out the overflow and got sucked in. Check the routing of the coolant hose and such.

 

[WVRigrat05]

^^X2, mine did this all the time when I blown head gaskets.