Got a heat exchanger leak so bypassed the heater core with a simple looped hose. A few thousand miles started dumping coolant so much so as to overflow the reservoir. It did get hot before my wife called me but never into the red, but real close. Changed cap with one from Autozone. Same issue. Finally changed out reservoir tank as I broke the stub trying to change the hose, thinking of an air leak. I also bled the system through the small nipple below the thermostat for a few seconds. Drove for over an hour with no increase in the reservoir coolant. Shut it off to see if heat soak would make any difference. Coolant level went up about a 1/2". Started, drove for another hour. Coolant is now up 1-1/2". Thought once cold it would condense back into the radiator. This morning, no such luck.
Engine does not burn oil, no water in oil, no oil in the coolant. Engine does not smoke at all, no white, no black, nothing ever. Coolant nice and yellow (not clouding from combustion leaks or oil contamination).
Hard to understand that it could be the usual head gasket leak but I am stumped. I did not try torquing?
Do you happen to see anything else I could try before taking this thing apart again. Not on easy job I might say.
have the same problem?
Wednesday, May 17th, 2017 AT 7:02 AM