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Re: heater blower sounds strong not much air coming out....
Hi there I am technical mechanical and electronic engineer mechanic its the control door not switching it or sticking open to but I have seen the ac control switch not changing it
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Check the doors in heater/ac box sounds like it is working back and forward between the hot and cold vent. Can't remember if they are vacuum operated or not.
Buick LeSabre Heater blows only cool air...even w/ defroster on. This is a ... Heater fandoesn't come on . ... The blower works but there is no heat coming out.
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https://www.youtube.com/watch?v=2vmfxYg8LoY
Sep 27, 2009 - Uploaded by mgittelman
The blower motor is a common heater/AC repair within the skill level of ... However if the power wire is a single light purple wire and the ... for blower motor and fuel and relay good but no powercoming on both any ideas? ... my o5 seira, when i start the engine with the air switch on it blows my blower fan ...
? 6:22
https://www.youtube.com/watch?v=hgar6Q1lV6A
Apr 5, 2013 - Uploaded by Fixbook
Here I show how to determine the problem if your air, or blowermotor is not ... Click here to check out the the "Car Runs on 2 cylinders" series: ... How to Fix Over-Heating engine & No Heat in car - Buick (2000 yr) Park Ave . ... Car fan / AC only works on high - Replacing the Blower Resistor - Duration: 4:24.
If the blower worked, but couldn't get cold air, there may be a leak of refrigerant in the A/C system. If you're complaint is about the lack fan-forced air; that could be a problem with the fan speed switch or a bunch of other places. Most often however, it is the speed control resistor. Have a look at this thread to learn more about it:
probly the switch is burnt-it happens when the blower motor gits old and draws too many amps---so replace blower at same time or else same issue again--and while u gut dashboard all apart inspect ac evaporator and heater core-theyr aging too
Seems like the dampers are partically closed,look under steering column and see your duck work for the vent system.Follow it back to the blower box.Unhook if there, turn on ac, if you get full air, nice and cold on low and high you have blockage in your vent duct work,check the vent line that diverts air to the diffrent selected vents. Also check for vent disconnection around sterring column,and defrost vent area.
The problem with your ac is the vent door has broken off and is blocking air from getting to the blower. To check and see if this is your problem you will need to remove the blower. The blower is located on the passenger side. You will need to remove three screws located on the blower using a 8mm socket. Once you have the blower removed reach inside and feel for the vent door. If it is broken you can remove it. However, you will need to get this fixed by a mechanic.
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