1999 Chevrolet Silverado 1500 "heat blows cold defrost 98" Questions

...heat but only cold ac air blows thru all vents. Blend door appears to be working fine. Cannot get AC to cut off. Compressor cycles on & off in all positions other than off. If you have the heater ...

...cold air to defrost via hot air. turn the temperature up to the hot to blend the hotter temperature There is a 98% chance it is your electric heat pump. Because Jaguar uses the closed water ...

heat is turned on it blows cold air. Not AC type cold but cold none the less. It used to cook me right out of the cab. AC operates fine and engine does not overheat when it is running. Just no heat at

heat position air blows out ac vent. The mode selector is bad. IF you look at the plenum (where the fan motor is ) you should see two levers one is hot cold the other is mode. Check them by moving the

...blows, but it won't blow warm air-no heater. can't see out of windshield with the morning sun.Husband flushed antifreeze and changed thermostat. What else do we check? feel the two hoses going into ...

...heat it blows cold the defrost botton wont turn on either Heater core..easy to replace..find the complete tear down and rebuild book for your car at any part store and follow the directions on how to ...

...heat is not working it blows cold air the simplest fix is to check your coolant level, if the radiator is low enough your heat wont come on. when the car is warmed up, switch the engine off and check ...

heat in my 98 ford ranger not working it blow out cold air from defrost only check antifreeze level make sure its full with antifreeze and not just water if full check heater core for leaks see if it ...

...blows cold air everything else works fine 1999 gmc sonoma Replace the heater core. 98 s10 sonoma truck heater stop blowing out threw vent. defrost work and warm air. trun the switch to heat the truck ...

...heat through driver side A/C vents and Cold through passenger side. Under hood the dryer and A/C lines are nice and cold. Just wondering what might be the problem and how to fix. Any help and advice ...