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Weird A/C Airflow Problem

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Old 08-17-2006, 04:59 PM
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Default Weird A/C Airflow Problem

MY A/C is nice and cold on the driver side, but the passenger side doesn't get as cold. The rear seat ducts seem to get cold, but have lower airflow (probably normal). The Airflow on both passenger ducts is strong, but its not really all that cold. Both vents on that side feel the same. Any ideas? Does this mean that the A/C is low?
Old 08-17-2006, 05:20 PM
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Default Re: Weird A/C Airflow Problem

Originally Posted by marquette97
MY A/C is nice and cold on the driver side, but the passenger side doesn't get as cold. The rear seat ducts seem to get cold, but have lower airflow (probably normal). The Airflow on both passenger ducts is strong, but its not really all that cold. Both vents on that side feel the same. Any ideas? Does this mean that the A/C is low?
We have had a few instances where there is different tempuratures from the driver/passenger vents, but not a whole lot of success figuring out why for a 92-99?

Here is the last time this was discussed:

http://www.bonnevilleclub.com/forum/...senger&start=0
Old 08-17-2006, 06:09 PM
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Your ac is not low...it'* all coming from the same duct.

Ensure the vents are fully open and you can not see any restriction in the duct.

As a kid..I accidently dropped a bimetal popping disc into my Mom'* defroster...lol..every time she kicked it on...click!
Old 08-17-2006, 06:11 PM
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All vents are fully open. Even on the BI-LEVEL setting, the passenger side blows warmer and less dry than the dariver side and rear passenger, on both top and bottom!
Old 08-17-2006, 06:12 PM
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Do you have Driver & Passenger Automatic Climate Control, or the Manual Climate Control? There are mixing doors in the Auto Climate Control that sometimes malfunction sending non air conditioned air to one side.
Old 08-17-2006, 06:16 PM
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sorry, I forgot to mention its the manual system
Old 08-17-2006, 06:32 PM
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Originally Posted by markwb
Do you have Driver & Passenger Automatic Climate Control, or the Manual Climate Control? There are mixing doors in the Auto Climate Control that sometimes malfunction sending non air conditioned air to one side.
Mark. The automatic climate controls and manual contorls do not provide seperate driver and passenger settings on the pre-2000 Bonnies. Only 2000+ got the option to set different temps, etc. for driver and/or passenger.
Old 08-17-2006, 07:27 PM
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Are you saying the Buick and Olds had a separate door to adjust the heater blend on air to passenger side but the Bonnie didn't get that door? Maybe I'm misunderstanding.
Old 08-17-2006, 08:06 PM
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I think It may be an intermittant thing because later I drove the car and both sides were much more even than they were. :?:
Old 08-17-2006, 08:35 PM
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Originally Posted by Echo SSEI
Mark. The automatic climate controls and manual contorls do not provide seperate driver and passenger settings on the pre-2000 Bonnies. Only 2000+ got the option to set different temps, etc. for driver and/or passenger.
Wow, I didn't realize that, Bob. I thought the Dual Climate Control was carried over from the 96-99 class Bonnevilles. Oh well, live & learn. Thanks man!


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