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2005 Kia Sorento
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45 Posts
Discussion Starter #1
So,

When I got this car, it was at a little under 100,000 miles and we inherited it from a dead relative.:(

It sat for almost a year before we took it out, cleaned it up and got it serviced. Now I'm noticing (roughly 112,000) the A/C isn't as cold as it used to be. Sometimes it will fluctuate from real cold, to not real cold then back up after a few minutes :huh:. Is this an easy fix? Could I simply buy a part and replace it with some handy work?

Thanks :D
 

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I now drive a 2003 S-10 Had an 03 LX 3.5 Sorento
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2,475 Posts
Have someone check the freon level. My 03 needed a suction side hose replaced because of a pinhole in the rubber hose. It had 115,000 Mi on it. Replaced it, vac and recharge. Works great now. Look for signs of oily deposits on AC parts.
 

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Super Moderator
2008 SpectraSX, 2014 Optima LX,2006 Jeep Liberty, Linux Mint Mate
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6,925 Posts
You said" Sometimes it will fluctuate from real cold, to not real cold then back up after a few minutes "...
Usually low refrigerent won't do that....You may have a slipping AC belt that when slipping the compresser doesn't pump well... The compresser could also be failing.

There is a "mixture" door inside the cab where the evaporator is that mixes hot air (heater core) with cold air (evaporator core). Depending on the model level of the car (electronic temperature control/manual control) the "brains" may be either getting the temp wrong or the door is sticking.
You may also be having problems with the AC lines and may need a AC specialist to monitor the refrigerent pressures inside the system with gauges.
Lots of things to check..
Dave
 

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2005 Kia Sorento
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45 Posts
Discussion Starter #4
Also, I noticed when I start my car there is a slight 'squeak' like a loose timing belt just for a second before it completely turns over. That spark anymore ideas?
 

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Super Moderator
2008 SpectraSX, 2014 Optima LX,2006 Jeep Liberty, Linux Mint Mate
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6,925 Posts
You may have found it all by yourself...
The AC drive belt slipping (without noise) will cause your posted problems...
Dave
 

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2005 Kia Sorento
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45 Posts
Discussion Starter #6
Would it? I believe my car has one main belt in the front. Think replacing it would fix it? If my car has more, let me know so I can provide my mechanic the parts and save some cash.
 
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