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AC not working, stuck on heat?


Lagon78

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Joined
Apr 30, 2015
Messages
7
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Vehicle Year
1997
Make / Model
Ford
Transmission
Automatic
So I'm trying to fix the AC so I can sell my 97 ranger and purchase a newer, 2003 ranger from a nearby neighbor. He said he would hold his ranger for a week.

Down to business then.
The car blows hot air all the time, regardless of the temperature setting. I'm aware that either the blend door or blend door actuator are causing the air constantly blowing from the vents. My question is why doesn't the temperature change? Does it just need recharging, or could there be a bigger problem? Temperature to me seems like it just needs to be charged. I don't care right now if it's a choice between maxed AC or maxed heat. I'll worry about that later. My main question is, as a teen with limited resources who isn't willing to pay someone to troubleshoot it, is there an easy way to troubleshoot the temperature issue? Thanks.
 


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Big Jim M

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Apr 18, 2008
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Age
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Location
Austin
Vehicle Year
2002
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
The blend door opens and closes the heat from the A/C path. If you have a bad blend door then you will only FEEL the heat as it is much hotter then the A/C is cold.
So turn it to cold setting and look to see if the compressor is turning and the cold line is cold. If yes then for sure the blend door needs attention.
Big Jim
 


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