V6. Has NEVER overheated but coolant forced out of expansion bottle while I was using car to jump start another. It was sat there reving at about 2500rpm for about 10 minutes when, whoosh, the water spewed out. Still didn't overheat! Garage tested it and said there was exhaust gas in the coolant...
So - have had new head gaskets, both heads pressure/crack tested (ok), new liners (whatever they are). That fixed the exhaust gas in coolant problem but was still pressurising up and bottom hose cold.
Then, had new thermostat, new water pump, new radiator and all new hoses.
Bottom hose getting hot but STILL getting bubbling sound and pressure in coolant, with cap in place. Take cap off and the water explodes out.
My garage doesn't know what to do... they say they have replaced everything that could cause the problem.
What the hell could it be?
Please help.
Mike
So - have had new head gaskets, both heads pressure/crack tested (ok), new liners (whatever they are). That fixed the exhaust gas in coolant problem but was still pressurising up and bottom hose cold.
Then, had new thermostat, new water pump, new radiator and all new hoses.
Bottom hose getting hot but STILL getting bubbling sound and pressure in coolant, with cap in place. Take cap off and the water explodes out.
My garage doesn't know what to do... they say they have replaced everything that could cause the problem.
What the hell could it be?
Please help.
Mike