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Old 03-02-2006, 12:24 AM   #1
macguy
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Pontiac Bonneville blows hot after battery died

I accidentally left the interior dome light on in my 1996 Pontiac Bonneville SE V-6 3800 serII the other night. After noticing it last night, I pulled out the battery and charged it today. All went well, no problem. However, after reinstalling the battery, now the digital climate control system blows HOT air only, no matter what the temperature is set at (left it at 60 F). As the temp down here in Florida right now is 70 during the day, and going to get 80's in a couple of days, this is a major problem!

I should also state that last week I replaced a vacuum line in the engine compartment that was the main vacuum line for the climate control system. It had rotted and fell off, and the air would only blow through the windshield and floor vents.

Now, the AC did blow cold the last time I drove the car (three days ago).

What in the heck happened, and it is fixable inexpensively?

I do have mechanical experience, and often work on this car for intermediate-level repairs (about the most involved stuff I'd get into is cleaning the fuel injectors. I don't do suspension work, air bag system work, etc.).

Appreciate any and all suggestions!
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Old 03-07-2006, 03:33 AM   #2
wardhamilton
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I've got the same car and same problem!

YIKES!!!

I have the same exact car AND the same exact problem!!!!

If you or ANYONE else has ANY thoughts of input PLEASE let me know!
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Old 03-07-2006, 08:22 PM   #3
davsmitty
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by removing the battery, you probably made the climate system screw itself. You might try asking around for a diagnostic tester/reader and see if you could use it for free, some shops will do a free diagnostic test. Most of the readers will also reset the comp for things like 'check engine' lights ect. Id try that first. Best of luck guys.
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Old 03-07-2006, 11:35 PM   #4
Wally
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Climate control systems generally have an ambient air temperature sensor to provide the degree of heating/cooling/fan speed req'd, you might like to check if it is ok.

There should be a control module that performs the tasks. It may be faulty or need resetting. You would be best advised to contact a dealer and ask if there has been a technical bulletin dealing with your problem. Chances are there are more than just two of you with the problem.
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Old 03-08-2006, 02:38 AM   #5
wardhamilton
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I got mine fixed!

Well I got the problem fixed today...

Genuine AC Delco Temperature Actuator.... $60.00

Labor to do the job................................ $400.00 (approx. 4hrs)

The ability to control the temperature in the cockpit.... PRICELESS!!!

After spending about three hours on Satuday trying to find the Temp. Actuator and finally giving up I went to the GM Dealership and had it done...

Normally Technicians make out like bandits on the "book time" of a job but not this guy! He worked EVERY hour!

The ENTIRE dash has to come out!

But I'm in Connecticut and was happy to have heat tonight!

Expensive but worth it!

CHANGE THE TEMPERATURE ACTUATOR!

Good Luck!
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Old 03-08-2006, 02:38 AM   #6
wardhamilton
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I got mine fixed!

.....

Last edited by wardhamilton : 03-08-2006 at 02:46 AM.
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Old 03-11-2006, 08:01 AM   #7
macguy
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wardhamilton,

could you provide me with the part number for the part they replaced?

I'd like to see if that's the bugger on mine, and maybe I can get one a little cheaper.

Screw $400 for labour putting it in - I'll do it myself.
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Old 03-12-2006, 03:15 AM   #8
wardhamilton
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The actuator...

Well it's called a "Temperature Actuator" and I believe GM's part # is: 16141822

As far as doing it yourself...GOOOOOOOD LUCK!

I'm pretty savvy myself (brakes, oil changes, plugs, wires and other general stuff) but let me tell you that you're in for a LONG DAY!

When I say "the entire dash" I'm not talking about the speedometer/cluster and the radio/temperature controller...

I'M TALKING THE ENTIRE DASH!!!

The part is located just below the passenger air-bag so BE SURE TO DISCONNECT THE BATTERY otherwise you might deploy it and knock yourself silly!

Seriously...think about having someone do it for you.

Let me know how it goes!


>>> Ward
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