Question about 1999 Buick Century

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My a/c blows hot air

I was driving along in a 2000 caddy DTS, all of a sudden my a/c started blowing hot air without warning

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Have the refrigerant level checked and charged

Posted on Jul 29, 2009

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Posted on Jan 02, 2017

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2000 caddy Seville ...after starting and engine warm turn on the heater and it blows cold air. Fan works / waiting for hot air and then all the sudden it kicks in. Engine at normal temp


Low coolant, if there is an air pocket in the engine it will make it to the heater core. Once there , the air coming out is cold/cool. Once the coolant fills the heater core, it gets hot. If the coolant is fine hot or cold, then have the HVAC system scanned.

Oct 09, 2016 | 2000 Cadillac Seville

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Blower motor wont run for the air or heat and none of the heated seatswork


I had a 2003 caddy dts same issue the blower motor has probably gone bad u can order them online. What u can also try is kicking under the passenger side glove box area that's where the blower is located sometimes they get stuck. Try kicking or tapping under there and see if it pops on. I did this with my car

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Altima blowing hot air AC


Go to Midas,they do great A.C.work,your Freon may have leaked out,they can test for a charge of 19.95..

Jul 01, 2012 | Nissan Altima Cars & Trucks

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I WAS DRIVING HOME AND HAD HEATER ON, ALL OF A SUDDEN IT STARTED BLOWING COLD AIR. WHY WOULD THIS HAPPEN? THE NEXT DAY I WAS DRIVING AND THE TEMPERATURE GUAGE STARTED GONG UP....PULLED OVER BEFORE IT GOT...


Check the antifreeze level. It could be low, When the air turns cold all of the sudden there is an air pocket in the cooling system. Watch for coolant leaks and if it continues to get hot replace the thermostat.

Nov 24, 2010 | 2000 Mercury Cougar

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1996 Cadiilac Fleetwood not blowing warm air.


could be but caddy's have 2-3 heat and air computers on there cars that control diff functions of the system seperately either one of them can be and will be bad !! they control the vents to temp control valve and blower i owned enough caddy's to know this!! this is why!! i drive a chev truck today LOL

Jan 14, 2010 | 1996 Cadillac DeVille

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Drivers side AC will blow hot air.


the blend motor on the vehicle is probably bad

Aug 20, 2009 | 2003 Chevrolet Silverado 2500HD

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Air conditioner blows super hot air.


your ac is freezing up try replacing the expansion valve

Aug 17, 2009 | 1992 Oldsmobile Cutlass

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2000 Chrysler Town & Country , no heat, blower fan working fine


Probably one of two things. First make sure that your coolant level is full. If the coolant is not flowing properly you won't get heat. If you begin to get heat while driving, but only when you are excelerating, this is your problem. If that is not it you may need to change the thermostat. This is noot hard as long as it is easy to get to and it should be easy.

Jan 12, 2009 | 1988 Oldsmobile Firenza

2 Answers

After car heats up (slow to heat) it stil blows cold until moving


You have a circulation problem, heater core may have restriction that why heat only comes when you drive ,also you may have a thermostat that stuck in the open position. Good Luck

Dec 22, 2008 | 2000 Dodge Caravan

1 Answer

A/C Blows hot on drivers side


driver's side temp actuator

May 14, 2008 | 2006 Cadillac DTS

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