need help with AC
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 1,093
Likes: 33
From: Morristown TN
need help with AC
I need help diagnosing my AC problems.
It worked fine last summer.
this winter the actuator door motor on the passenger side was stuck in cool so I swapped it out and all worked fine.
when the air is cool outside I can switch from cool to hot but if it is above 80 outside it blows like a heater no matter where I put set it although there is a small difference so I know the actuators are working.
Is it possible I accidental unpluged something? it was pretty tight up inside there when changing it, I had to remove the driver side seat and lay down where the seat was to get to it,
I checked all fuses and relays and found no bad ones and even went as far as swapping them around just in case.
when I turn the ac on I do hear the engine slow down and the auxiliary fans kick on
I have felt the AC lines and they are hot to the touch.
I only have a cheap gauge to check the pressure where freon is added and it reads good.
anyone have any ideas where I should start?
I did a search and tried everything I found while searching so I am now asking if anyone has any better knowledge than me.
This car has lots of miles {250,000+} and I think it has the oem compressor.
One guy I ask said something about a filter in line somewhere and a check valve.
I am being honest when I say I have no idea what he means.
If it is something electrical I normally can fix it or jerry rig it enough to get me home but I know nothing about HVAC
thanks in advance
I also found out today my wife's 86C4 definitely needs a compressor, when I opened the hood to see what the noise was I saw freon coming out from around the pully.
not a good time of the year for both AC systems to go out at the same time
It worked fine last summer.
this winter the actuator door motor on the passenger side was stuck in cool so I swapped it out and all worked fine.
when the air is cool outside I can switch from cool to hot but if it is above 80 outside it blows like a heater no matter where I put set it although there is a small difference so I know the actuators are working.
Is it possible I accidental unpluged something? it was pretty tight up inside there when changing it, I had to remove the driver side seat and lay down where the seat was to get to it,
I checked all fuses and relays and found no bad ones and even went as far as swapping them around just in case.
when I turn the ac on I do hear the engine slow down and the auxiliary fans kick on
I have felt the AC lines and they are hot to the touch.
I only have a cheap gauge to check the pressure where freon is added and it reads good.
anyone have any ideas where I should start?
I did a search and tried everything I found while searching so I am now asking if anyone has any better knowledge than me.
This car has lots of miles {250,000+} and I think it has the oem compressor.
One guy I ask said something about a filter in line somewhere and a check valve.
I am being honest when I say I have no idea what he means.
If it is something electrical I normally can fix it or jerry rig it enough to get me home but I know nothing about HVAC
thanks in advance
I also found out today my wife's 86C4 definitely needs a compressor, when I opened the hood to see what the noise was I saw freon coming out from around the pully.
not a good time of the year for both AC systems to go out at the same time
Burning Brakes
Joined: Jun 2010
Posts: 1,014
Likes: 5
From: Rockwall TX
Mine did that, it was low on freon. It also had a plugged orifice tube (filter) that somone had put in backwards with a new compressor install(it was plugged up). Took it in and they cleaned the lines and put a new tube in, and it works great now. Probably need to put some decent gages on it, or find a good AC guy to look at it as they can tell a lot from the readings.
