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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29588
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Can the cooling system be pressured up from the turbo

Customer Question

can the cooling system be pressured up from the turbo
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 1 year ago.

Can you tell me your year, make and model?\

Customer: replied 1 year ago.
2005 Chevrolet 3500
Expert:  GM Tech (Cam) replied 1 year ago.

No, the pressure the turbo creates is about the same as normal heat build up in the cooling system. This is a fault in the head gaskets. The issue in this case is a faulty sealing ring on the #2 and #7 cylinders. This allows the combustion pressure to push into the cooling system and then pushes out the surge tank.This will not push coolant into the cylinder so it will not smoke. The replacement head gaskets are updated and do not have the same ring or design so repeat failures are not an issue. THe gaskets take about 36 hours to change in a shop as there is lots to get out of the way. Many even lift the cab off.