Question about 2000 Oldsmobile Alero

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Oldsmobile alero hvac not working

Heater is not blowing out any air- hot or cold. Just happened, was working normal prior.

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  • Oldsmobile Master
  • 3,103 Answers

Check for power.. usually fuses first..a 25 amp mostly.. repost findings..

Posted on Jan 21, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 119 Answers

SOURCE: 99 oldsmobile intrigue

The ambient temperature sensor going bad causes this exact problem. I've replaced many of them because when they show outside temp as being below 60 degrees, the A/C control module will shut the compressor off.

Posted on Aug 08, 2008

autodr
  • 260 Answers

SOURCE: Olds silhouette heater blows cold air

as long as the engine temperature is normal, i would suspect a clogged heater core, the dex-cool antifreeze is notorious for building up deposits in cooling system. have heater core flushed first to see if it makes any difference

Posted on Nov 16, 2008

roniecon
  • 6826 Answers

SOURCE: air conditioner blows out hot air

Hi, my name is Ron,Is the freon level right or to much or to little amount of freon?Does the ac accumilator get really cold?The pipe coming off the accumelator ?If so,look for a vacuum line to be colasped or leaking,and check vacuum resorvoir to see that it is not leaking vacuum...any more help...roniecon@gmail.com

Posted on Jul 20, 2009

  • 275 Answers

SOURCE: heater is blowing cold air is there a fuse?

There should be a heater control valve located under the hood in a hose. One hose goes into the firewall which flows through the heater core inside the rear of the dash and another hose coming out and back to the engine. It is probably a bad control valve or maybe the cable is stuck which opens and closes it when you move the knob on the dash. Have someone inside the car move the lever from hot to cold and see if the cable to the heater control valve moves. The rest depends on how handy you are. Should be an easy repair for your local shop.

Posted on Nov 30, 2009

  • 416 Answers

SOURCE: heater blows hot air for awhile but than blows

check coolant level in radiator and coolant bottle sounds like it may be low on coolant

Posted on Feb 09, 2010

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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

1 Answer

2001 olds alero. replaced thermostat last year. Heater still not blowing warm air just cold. AC works. Defrost blows cool air.


Heater core is bad. Part is about $40...labor is around $700. The entire dashboard has to be removed and this is a major time involved job. It takes 10 to 12 hours.

Aug 22, 2016 | 2001 Oldsmobile Alero

1 Answer

2003 alero blows air no hot air


If the heater hoses are hot, it could be a blend door problem under the dash.

Jan 19, 2014 | 2003 Oldsmobile Alero

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HVAC only blows hot air and moves between defrost, panel and floor


vacuum controls stuck work the knob a bit and try to free it..

Dec 29, 2013 | 1998 Oldsmobile Bravada

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I have a 2003 alero with the v-6 what happened was driving down the road the heater works fine. then all of a sudden it was blowing cold air and the temp gauge started climbing. it started blowing how air...


Sounds like the water pump is cavitating . Replace water pump. Check coolant level also. Open the bleeder valve usually located on thermostat housing to remove air from system. close valve when coolant is present while filling. close radiator cap and top off recovery bottle to correct level. These engines are prone to overheating, do not let temp gauge get in the red.

May 01, 2017 | 2003 Oldsmobile Alero

1 Answer

Heater not working


HEATER NOT BLOWING COLD,NO HOT AIR FROM HEATER,A/C BLOWS HOT AIR,A/C NOT BLOWING COLD, COLD AIR FROM HEATER,BLEND DOOR ACUTATOR CLOSED,HVAC UNIT NOT OPERATING,
http://alltypesofpartsreplacing.blogspot.com/2012/12/heater-not-blowing-coldno-hot-air-from.html

Dec 26, 2012 | 2001 Ford Taurus

1 Answer

I have a 2002 Olds Alero GL my heater is not working and car overheats peoriodically losing antifreeze, please help freezing in Montana


For car running hot and overheating issues, I suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems: ----

Engine Overheats and heater blowing cold? http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.

Jan 20, 2012 | 2002 Oldsmobile Alero

1 Answer

Heater is blowing cold air.


Start with checking coolant level, if low it will cause a no heat problem. If radiator coolant level is correct you might have a temperature door problem. The temerature door is located inside the HVAC module and is controlled by the temperature control knob on the dash board. The electric motor that moves the temp door may have failed.

Nov 13, 2011 | 2001 Oldsmobile Alero

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