I need help with the heater in my 1999 Chevy Blazer.?

robert n

New member
I have flushed the heater core and the radiator is full. The "mixing" control (hot or cold air) seems to be working fine. The operating temp never seems to get over 160 degrees. The hoses leading to the heater core are warm to the touch after I drive it for a bit.
I have flushed the heater core and the radiator is full. The "mixing" control (hot or cold air) seems to be working fine. The operating temp never seems to get over 160 degrees. The hoses leading to the heater core are warm to the touch after I drive it for a bit. I 'backflushed' the coolant system from the hose at the heater core (put water in one hose and it came out of the other)
 
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