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Old May 16, 2021 | 03:21 PM
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Default A/C question

The a/c on my 98 coupe is colder coming out of the passenger side vents than it is in the middle and driver door side vents. The volume of pushed air is the same. The mode selector seems to be working fine as I can select different outputs and it changes as expected. I bet the difference is 20 degrees difference.
Anyone have any ideas?
I am going to have the system vacuumed and charged next week when I get back into town since the weather is heating up..
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Old May 16, 2021 | 03:27 PM
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May be low charge...report back next week.
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Old May 18, 2021 | 08:17 PM
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Dual zone system? Zone selection is the vacuum side of things, temperature is blend doors. You note the passenger side is colder -- considering the time of year, I imagine you're shooting for colder on the driver's side? An actuator reset might fix it, but I'm betting on a new actuator (or two) being necessary.
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Old May 19, 2021 | 09:05 AM
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common problem my 98 was low charge.
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Old May 22, 2021 | 09:56 AM
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I agree with Rob (C5Diag). Cars that are equipped with climate control (I had an '03 Buick LeSabre with CC, and it did the same thing OPs car is doing) seem to blow colder on the Pass. side than drivers side when low on refrigerant. I don't know if manual A/C exhibits this scenario, or not. My C5 with CC also did this, and a recharge took care of it. Good luck, OP......
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Old Jun 5, 2021 | 05:26 PM
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I had the a/c checked..it was about a half pound low....it was filled and blows super cold now. I still say it is colder on the passenger side...
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Old Jun 6, 2021 | 02:28 AM
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You should buy an A/C Thermometer for automobiles at a parts store
and test all the vents.

Last edited by hron61; Jun 6, 2021 at 02:34 AM.
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