Questions & Answers for: Chevrolet Silverado 1500 heat pump blows cold sometimes

...blows cold most american cars force the defroster to blow cold air, this is not a problem, it does this by design. my 97 chev 2wd blower only works on the highest selection and it doesn't blow any ...

...heat back up. Always goes to cold air at idle. Had the same problem with my Mazda6 awhile back. Took it to the dealer and they found the radiator wasn't holding pressure. They replaced the whole ...

heat only blows out briefly then changes to cold air after letting the truck warm up properly i only get a burst of warm air then the air blows out cold--i had a new thermostat put in last fall--what ...

...alternate cold and warm air Chevrolet Silverado 2004, blows warm and cold air alternating and sometimes blows warm on passenger side while blowing cold on driver and vice versa... check the freon ...

...blows hot There are a few things that can cause this problem. Reason #1 a low coolant level can cause the heater core to receive less coolant flow hence causing the heat to come less quickly. reason ...

...pump is passing fuel back as aretern i need advice and help. probably not that. it is more than likely the cold water temp sensor. this puts more fuel to the engine when cold and acts like a choke. I ...

blows cold air,replace belts,themostat,accuator(door llender) try flushing your coolant system. if you have air compressor.remove hoses to heater core and try ro blow it out. also with the car running

...blows but no heat there is a flapper door that is controled by a little servo motor under the dash that controls the mixture between hot and cold depending on where u have the control set. sometimes ...

...heat sometimes these doors are vacuum actuated and sometimes they are electrically actuated most the time you are able to see the movement of the motor from inside if you don't see any movement but ...

...cold heat. What steps do I take to properly diagnose this problem ? If the engine top radiator hose is actually at HOT to the touch ( it will burn you ) and the coolant in radiator is full touch both ...