Question about 1999 Chevrolet Blazer
How much would it cost to replace a heater core? do you think that's most likely what would need to be done? My 1999 chevy blazer has some heat not much just had alternator and new battery put in it. I was hoping the heat would be better in it but it isn't. It is very cold outside and going to be colder soon. Is 10 degrees right now.
Ther are two small tubes that open and close the valve to let in the hot air' one is from right under the carb intake and goes to the right (looking at the engine) right behind the fuse box. if there's o hole in that tube the heat will not work. just change mine becase the tube dry-rotted
Posted on Dec 04, 2011
The best way to check it is to warm the engine up to operating temp and check the heat out put at the dash at idle then rev the engine up to about 2000 rpm if the air gets hotter the core is probly getting pluged. If this is the case drian the cooling system and back flush the core also put in a new thermostat this should solve the problem. The air temp should be at least 140 deg at teh dash when the engine is warm if not even hotter the theromost opens at about 180 deg
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
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