Question about Cars & Trucks
Not heat,blow only cool air, even when heat control is all on/
You have a water diversion valve in line with one of the small three quarter heater hoses. Probably on or near dash. This valve is either not switching on when you choose heat or the valve is stuck or clogged.
Posted on Jan 01, 2014
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Posted on Jan 02, 2017
Sounds like a problem with the "Drivers side temp actuator motor".
Each side has a motor that controlls the temp. door inside the dash for the driver or passenger side. These motors are approx. $75, plus 1 hr. labor to install. See more info here...
Posted on Oct 22, 2008
Did you check your coolant level or was it low and you added to it at some point? If so the system my need to be bleed or worst case the thermostat is going bad.
Posted on Jan 03, 2009
your actuatior valva is bad.you can order 1 from auto parts giant online for about 45 bucks the dealer wnats 240.00 that will give the heat and air back
Posted on Mar 08, 2009
I have the same problem exactly, if i turn off the ignition and then turn it back on it begins blowing cold air again. I would like to know what the problen is as it sounds like it is not unique to just my vehicle.
Posted on Oct 10, 2009
SOURCE: no heat blows cold
most likely either the vacuum line to the round ball is disconnected allowing the vacuum pressure from moving the inner levers to the heating unit of ....check your radiator fluid levels to ensure they are to specifications level ...or you may need a radiator flush to flush the heater-core as they become plugged from gunk also could be the line going into the heater has become lose you will need to get involved a bit under the dash to investigate this ....also the switch could be bad or yes by all means use a test light and see if your fuse has blown it may be as well vacuum lines under the hood has dry-rotted preventing proper vacuum to the unit
but it sounds as if you need to have the heater core flushed these are the areas in which i would start with first ...good luck and i hope this helps you
Posted on Dec 03, 2009
Tips for a great answer:
Feb 21, 2015 | 2001 Oldsmobile Alero
Feb 23, 2014 | 1999 Oldsmobile Alero
Nov 13, 2011 | 2001 Oldsmobile Alero
Please see my tip at http://www.fixya.com/cars/r6234839-doesn_t_heater_or_air_conditioner_blow . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
Mar 25, 2011 | 2004 Oldsmobile Alero
May 17, 2010 | 1999 Oldsmobile Alero
Mar 12, 2010 | 2001 Oldsmobile Alero
Dec 26, 2009 | 2002 Oldsmobile Alero
Oct 11, 2009 | 2002 Oldsmobile Alero
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