2001 Chevrolet Blazer "heater not blowing hot" Questions

...blowing out hot hot air. door opens and closes to the heater box like it is sopose to. Dad added new R134a has been put in abd is not leaking. It blows out cold air under hood and condencer is very ...

heater blowing cold air replaced thermastat next day heater blowed hot then it started blowing cold again has a new radiator and the water is not low Flush coolant system out first with prestone or ...

...heater not blowing hot air? Let vehicle worm up grap bolth the heater hoses that are attached to the heater core if therew bolth not hot then there is now flow through the heater core and its likely ...

...hot air and on cold days my heater blows cold air i dont know what the main problem is your core could be clogged. you can flush it by removing both heater hoses coming from firewall and spaing the ...

...blowing cold air in, chances are your heater core is clogged. 2 water hoses will be coming out of the firewall behind the distributor. Feel them both with the engine up to temperature. Both should be ...

no heat in 2001 blazer. only blows cold air just changed thermostat and still will not blow hot air check for heater hose and or heater core clogged.

...of the vent. RUN ENGINE UNTIL HOT, THEN FEEL THE HEATER HOSES IF ONLY ONE HOSE IS HOT THEN SESPECT A PLUGGED HEATER CORE. I HAVE SEEN THIS ON SEVERAL BLAZERS. ALSO MAKE SURE YOU ARE FULL OF

heater blowing cold air i had my stereo changed on my blazer the other day. before it was changed, the heater would chase you out of the vehicle. since it was changed the heater does not blow hot air.

...heater air doesn't get hot as it used to, definitely not ready for the Cleveland winter. Engine temps are fine, hits it's operating temp within the same time frame it used to, and steadies at around ...

...heater not blowing hot air on 99 chevy blazer was working earlier in season and now will not blow hot air. replaced thermostat, no help. both heater hoses going to the heater core are hot. believe ...