2000 s10 blazer antifreeze smell
Pressure test the cooling system with the engine warm if you have a
factory installed heater bypass valve.
To me it would sound like you have a steam leak in the heater core. I
had this problem before. Would only leak steam when up to operating
temp, yet would not leak cooliant. It was caused by a very small crack
in a soilder/braze joint.
Charles
|