HT4100 4.1, 4.5, 4.9 Discussion, Mystery drainage of radiator? in Cadillac Engine Technical Discussion; Hello, I had two mechanics say "that is not possible to me" My radiator is leaking into the cabin even ...
Hello, I had two mechanics say "that is not possible to me" My radiator is leaking into the cabin even though the heater core was removed and bypassed months ago. If I add water to my radiator now, by tomorrow it will be low and the driver's side carpet near my left leg is soaked. I had a pressure test on the engine and they said it is fine and not leaking. I do not see fluid on the ground, or water or smoke out of the tailpipe. How could it be getting into the cabin, if the heater core inlet has nothing connected to it. Please help.
check your oil level, coolant can pour in through the intake, as for water inside, its probably from the the evaporator, if it is definately coolant in the interior i would suspect that your heater core is NOT bypassed, there is no other way coolant will get into your interior.