Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.Roy
ok, first, did you replace the head gaskets???
did you at least do a leak down test on the cylinders to confirm the gaskets are good??
the excessive pressure could be coming from a leaking head gasket leaking compression into the cooling system
ok, I understand but you still may have a gasket issue. as I stated, the only way to confirm is a leak down test to confirm.
I will opt out of this and see if someone else can help you.
Hello my name is Bob.
Do you still need help?
All this happened after the lifters were replaced?
Yes If its not working properly.
Pressure builds up from overheating. If it builds up cold startup may have a bad head gasket?
When does it overheat or build pressure?
When you put the intake gasket on are the tabs to the front? The blocked out coolant passages to the rear.
Make sure you can see the tabs sticking out on the front of the intake.
Did this start after your repairs?
You don't think you have a air pocket?
If the pump is noisy may have a internal problem.
Was the pump replaced?
Did you replace the T-stat?
Can you tell me everything you replaced so far?
For the overheating problem
When it overheats are you driving or idling?
If the radiator or fan is not cooling properly the pressure will build up.
You antifreeze in it not just water?