A/C Problems - Cold then HOT then Cold then Hot!!!!!
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Joined: Jun 2005
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From: Tucson, AZ
A/C Problems - Cold then HOT then Cold then Hot!!!!!
It has been a while since I last posted but here goes......
I gave the 97 to my daughter in January, she lives in Orlando and I in Arizona so I cant look at what you may recomend.
She called yesterday and said that the AC was blowing HOT air from the vents, I asked which vents, she said the dash vents. She also said that it never got cold, she drove to work and it was still HOT. She later left work and it worked like it should, COLD all the way home. She called again today and the same thing happened, she went off to work and it was HOT and blowing hard through the dash vents.
Any ideas I can relate to her?
thenks, Nick
I gave the 97 to my daughter in January, she lives in Orlando and I in Arizona so I cant look at what you may recomend.
She called yesterday and said that the AC was blowing HOT air from the vents, I asked which vents, she said the dash vents. She also said that it never got cold, she drove to work and it was still HOT. She later left work and it worked like it should, COLD all the way home. She called again today and the same thing happened, she went off to work and it was HOT and blowing hard through the dash vents.
Any ideas I can relate to her?
thenks, Nick
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Joined: Jul 2004
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From: Grand Rapids, Mi
Can she check and see if the compressor is running each time? (Not running when it blows hot, and running when cold.) If it is running when cold, does it run most of the time at idle, or keep cycling on and off? It could just be low on freon, or have a bad pressure switch.
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From: Gilroy, California
Originally Posted by Archon
Can she check and see if the compressor is running each time? (Not running when it blows hot, and running when cold.) If it is running when cold, does it run most of the time at idle, or keep cycling on and off? It could just be low on freon, or have a bad pressure switch.
I did that once. Pretty embarrassing, but when I moved it back from all the way right to all the way left, I had cold air again.
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Originally Posted by Bob Dillon
Originally Posted by Archon
Can she check and see if the compressor is running each time? (Not running when it blows hot, and running when cold.) If it is running when cold, does it run most of the time at idle, or keep cycling on and off? It could just be low on freon, or have a bad pressure switch.
I did that once. Pretty embarrassing, but when I moved it back from all the way right to all the way left, I had cold air again.
The unit in the 97 is a ECC not the dial type.
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Originally Posted by Bob Dillon
I guess the only thing to check before you go further then is that the ECC temp is set way lower than the outside air temperature.
Good luck.
Good luck.
High Humidity
High temp
I think it would be set lower, she said she had it set at 65.
By the way Bob, your UIM that I got from you must be still working just fine, I haven't had a call from her about any coolant problems.... thought you might like to know
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Joined: Apr 2006
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From: Arlington TX
I had a similar problem with my '95, when you started it up it would go to full hot, then back to almost cold. If the car was already hot and it was a hot day, it sure wasn't pleasent to get blasted with that hot air everytime you started the car. The problem was the heater door actuator(not the controler) , and since you had to practicly tear the dash out to get to it, I took it to the dealer. The part was like $100.00 and nearly $500.00 labor to install it.
T.B.
T.B.
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From: Gilroy, California
By the way Bob, your UIM that I got from you must be still working just fine, I haven't had a call from her about any coolant problems.... thought you might like to know
I'm pretty sure we're all OK. Keep your fingers crossed anyway.
DINOSAURUS BOOSTUS
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From: Enfield, CT
Nick..I'd run with the possible low freon /pressure switch for starters.
Both can cause issues and if pressure/freon levels are near the threshold, intermittant conditions could easlily occur.
Both can cause issues and if pressure/freon levels are near the threshold, intermittant conditions could easlily occur.
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From: Tucson, AZ
Originally Posted by BillBoost37
Nick..I'd run with the possible low freon /pressure switch for starters.
Both can cause issues and if pressure/freon levels are near the threshold, intermittant conditions could easlily occur.
Both can cause issues and if pressure/freon levels are near the threshold, intermittant conditions could easlily occur.