Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Can you tell me your year, make and model?\
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.