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Heating AC and Engine Cooling Questions

Subcategories of air conditioning and cooling systems:



Total questions: 1691

How can you fix a car air conditioner that puts out a bad smell for 2-3 minutes when you first turn on the air conditioner?
Popularity: 217

What could be damaged when an engine overheats?
Popularity: 164

Why would your car heater overheat?
Popularity: 157

How do you add freon to an auto ac system?
Popularity: 150

How do you repair the Heater Air Conditioner switch?
Popularity: 144

Why would an auto AC turn on but only blow warm air?
Popularity: 137

What would cause white smoke to come out of heater vents?
Popularity: 136

When a car has been sitting in the heat is it good or bad to open a window while using your AC - to 'vent' the heat?
Popularity: 128

Why do car windows get foggy inside in cold weather?
Popularity: 128

For what cold temperatures do you suggest installing and using a block heater?
Popularity: 123

Why would a car only overheat when driving on highway not when driving around town?
Popularity: 121

What causes a car to overheat?
Popularity: 108

How difficult is it to repair an auto AC compressor?
Popularity: 106

Why would the car heater only blow heat from the dashboard?
Popularity: 105

Why won't a 2000 Ford Windstar heater blow heatand sound like something is flapping when it's turned on?
Popularity: 100

How do you flush the cooling system in a Rover Metro?
Popularity: 97

Why would car heater work but the defroster not clear the windows?
Popularity: 94

What could cause your car AC to trip frequently?
Popularity: 94

How do you repair a leak from the heater coil?
Popularity: 93

How do you troubleshoot a problem with heated seats on a 2000 Bonneville?
Popularity: 93

Why is a car overheating even after changing the water pump and the radiator?
Popularity: 92

Why won't the coolant in the engine block get warm after a new thermostat was installed?
Popularity: 91

Is there a thermostat linking the radiator to the fan on a 1992 VW Golf?
Popularity: 91

What does it mean when the overflow tank is bubbling yet the car does not overheat?
Popularity: 89

Does a car AC heating function the same way as normal room ACs or Split Units operate such as in reverse cooling operation?
Popularity: 89

Where can you find an AC diagram for a 1999 Dodge Durango?
Popularity: 88

Where is the blower motor resistor on a 1994 Ford Explorer XLT?
Popularity: 88

How do you get the heater core out of a 1991 Mercury Sable?
Popularity: 88

How do you get the AC compressor clutch off of a 1995 Pontiac Grand Prix 3.1 L?
Popularity: 88

Do the outside vents that recirculate air stay open when the vehicle's engine isn't running?
Popularity: 87

Why would an otherwise-excellent heater in a 1995 Mazda Millenia blow cold air if the car is not moving?
Popularity: 87

How do you repair the heater in a 1995 Grand AM when the blower is no longer working?
Popularity: 86

How do you determine what the problem is when the heater for a 99 Chevy Blazer won't heat up but stays barely warm?
Popularity: 83

How do you repair a flaky air conditioner in a 1997 Ford Windstar?
Popularity: 83

How do you change a heater core on a 1992 Ford Ranger?
Popularity: 82

How do you drain the raditor on a 1995 Chevy Lumina?
Popularity: 81

Can an automotive rookie replace a thermostat on a 2000 Dodge Caravan and if so what are the steps involved?
Popularity: 80

After replacing the water pump why would the car still leak small amounts of antifreeze?
Popularity: 80

How do you fix an overheating problem on a 1994 Kia Sephia?
Popularity: 80

What would cause the air condition and heat to only blow in the floorboard?
Popularity: 80

Why would your engine die on long trips during the summer with the AC on?
Popularity: 80

Where is the heater core in a 1995 Dodge Dakota?
Popularity: 79

How do you fix a car heater on a 1991 Chevy Corsica that only blows cold air and the thermostat is working right?
Popularity: 79

Where is the outside temperature sensor for the rearview mirror with temp and compass on a 2001 Pontiac Gand Prix GT?
Popularity: 79

What steps should be taken to troubleshoot a 98 Jimmy not blowing air to the floor vents?
Popularity: 78

What are common Mercury Topaz heater problems?
Popularity: 78

Why is a 1994 Honda Accord LS still running hot when idling after the thermostat radiator and both hoses were replaced?
Popularity: 77

How do you access the blower moter in a 1991 Chevy S-10 Blazer?
Popularity: 77

How do you replace a heater core in a 79 Firebird with AC?
Popularity: 76

Does the dashboard have to be removed to access the heater blower motor in a 1992 Pontiac Grand AM?
Popularity: 75

How do you service or perform maintenance on an AC compressor for a 1999 Firebird?
Popularity: 75

How do you repair a 1986 Nissan 300ZX that blows hot air even on the AC setting?
Popularity: 73

How do you fix it when you are getting no power to the fuse box for the car heater?
Popularity: 73

Why would there be a clicking sound in the glove box and the heater not blow hot air?
Popularity: 73

Where is the thermometer on a 1996 Pontiac Sunfire?
Popularity: 73

When it is below freezing why would a 1996 Neon engine indicator go up to overheating after about 20 minutes on the road and blow cold air?
Popularity: 73

How do you bypass the heater core on a 91 Mazda Protege?
Popularity: 73

Where is the heater blower relay located on a 1995 mid-size Chevy Blazer?
Popularity: 72

Is there an air release valve for the heating and cooling system on the 1994 Nissan Maxima SOHC engine?
Popularity: 72

Where is the heater blower motor located on a 76 Chevy Nova V8?
Popularity: 72

How would you replace the AC compressor on a 1997 Trans AM WS6?
Popularity: 72

Why would there be no voltage to the AC compressor clutch?
Popularity: 71

How do you bypass the heater core on a 93 Escort?
Popularity: 71

Why does a car's temperature gauge go up when parked but not when driving?
Popularity: 70

How do you replace a cabin filter on a 2002 Dodge Grand Caravan?
Popularity: 70

Why won't the engine in a 1989 Ford Bronco II heat up even after replacing the thermostat filling with anti-freeze and changing the water pump?
Popularity: 70

What would cause the engine to overheat and the heater to stop blowing warm air in a 93 3.8L Ford Taurus?
Popularity: 69

Why would a new blower motor not run on high speed and not get as hot as it used to?
Popularity: 69

Why would the blower not come on?
Popularity: 69

How do you replace a heater core in a 1990 Oldsmobile Cutlass Supreme SL 3.1L V6?
Popularity: 69



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