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check the temp guage if low change the thermostat

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โˆ™ 2005-02-02 08:23:49
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Q: Why does your Chevy blazer blow cold air out of AC vents when you go over 55?
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Why does the 2 drivers side air vents on a 1998 Chevy Venture blow warm air and the 2 air vents on the passengers side and the rear vents blow ice cold air when the AC is on?

The blend door actuator may not be working.


On a 1998 Chevy blazer what would cause the heater to blow cold air?

Check Antifreeze level..make sure there are no leaks under the vehicle.


My 2001 Chevy blazer will only blow cold air what can you do to trouble shoot what repair must be made?

My 2001 Chevy Blazer was blowing cold air when I had the heat on. My husband flushed the line to the heater core and a bunch of junk came out and now my heat works great. My 2001 Chevy Blazer was blowing cold air when I had the heat on. My husband flushed the line to the heater core and a bunch of junk came out and now my heat works great.


How do you get your 1996 Chevy z71 to blow warm air through the vents when you turn it to heat it blows cold?

If it still blows cold when it is at running temp, check the engine thermostat, its probably stuck in the open position.


On a 1998 Chevy Blazer what would cause the heater to blow hot air then cold and occasionally back to hot?

Either a faulty thermostat or you have a low coolant level.


Why would a heater on a 2001 Chevy Blazer blow cold air if the thermostat was just replaced?

The heater valve could be failing to open for one reason or another.


Why would a 2001 Chevy Blazer heater only blow cold air?

Low coolant in the system. Defective heater control valve. Clogged heater core.


Left side vents blow warm but right side vents blow cold while using ac?

Either the a/c system is low on freon or the evaporator has an internal restriction....


Why your van vents blow warm air idle but cold when driving?

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Why does 2000 Chevy blazer with climate control blow cold air then hot air then cold air again?

Sounds like a malfuntion in the heat blend door actuator call your local autozone for more info


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Coming out of the vents around 43 degrees


Kia Sedona HTR RR switch do?

The HTR RR switch in a Kia Sedona determines which air vents the air is blown through from the rear heating. When it is pushed in, the lower vents blow hot air, and when it is not pushed, the roof vents blow cold air.


On a 1995 Gmc sierra truck why does the air conditioning vents on dash work in every mode except cold air cold air will only blow out from floor vents?

The a/c - heater controller is out...........


Why does your F250 diesel 6.0 when idling blow cold air through the heater vents?

most likely it's a bad thermostat, or your vents not working properly.


Why does heat blow cold on 2000 Chevy s10 blazer?

This is caused by a blown gasket that allows coolant to escape. Does your engine smoke sometimes when theirs coolant? If yes, then it's definitely a blown gasket.


Why does 1995 Suburban front air vents blow cold air but rear air vents blow hot air?

Possible blockage in the rear air units expansion valve. I just replaced mine for the same reason.


Why don't my AC blow hard enough on my 92 S10 blazer?

If it does not blow cold air, the system may be low on freon. If the blower motor doesn't seem to blow much air out the vents, one possiblity could be obstructions in the duct work such as mice have built a nest (not uncommon). Also the high speed relay for the blower motor could be burned out.


What is wrong with a 95 cavi when the temp says its hot but the vents blow out cold air?

could be low on coolant


What causes Condensing unit to blow cold air outside and warm air inside vents?

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Why does rear heat not blow warm on 2003 Chevy Tahoe?

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How cold is the air coming out of the vents when the air is on?

It's somewhat cold. It's just very little cold air coming out. Can't hear the vent blow the air as well.


Chevy blazer how many cold cranking amps should your battery have?

I would recommend 500 minimum.


What might be the problem of cold starting in 1997 Chevy blazer?

Engine coolant sensor may be bad


Why the heater blow cold air on 96 blazer?

the heater core was stopped up just flushed it out ok now


How do you get the air conditioning vents to blow cold instead of hot on 1996 crown Victoria?

Check temperature control cable for binding.