Heat need heat!!
#1
Heat need heat!!
My truck is having heating issues! I read that if move it to cold from hot you should hear a fliping noise down in the center above the tanny. But i hear something when i move the switch it from vent, feet, face ect.... But it dose have warm air when its on 1 or 2 but when i crank it to high nothing but cold air. the coolant is full and i dont think it needs to be flushed it looks clean and i flushed it at 130,xxxx now im at 180,xxx. what could be my problem. 1999 z71 ext 1500
#2
CF Monarch
My truck is having heating issues! I read that if move it to cold from hot you should hear a fliping noise down in the center above the tanny. But i hear something when i move the switch it from vent, feet, face ect.... But it dose have warm air when its on 1 or 2 but when i crank it to high nothing but cold air. the coolant is full and i dont think it needs to be flushed it looks clean and i flushed it at 130,xxxx now im at 180,xxx. what could be my problem. 1999 z71 ext 1500
#5
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feel the hoses for the heater core at the firewall (engine side ) to see if incoming and outgoing are hot. if yes you have a thermostat issue likely. (stuck open)
#6
I am have the same problem, on my k1500 5.7 v8 it will not blow warm air! I changed the radiator (leaked) the thermostat, the heater core, the blend door moves and the water pump (flow was not constant). Still blowing cold air! Can't figure it out
#7
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looks like your last bet might be the controls....
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#10
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Friend of mine had a problem with heat. Turned out to be air locked. Took heater hose off and pushed water through the system with a garden hose. Had to remove the thermostat to do so. But u will lose your antifreeze. Night drain it first if it clean. Just a thought!