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Oldsmobile Intrigue: Climate Control

102 messages,  Last post on Aug 22, 2009 at 6:52 PM

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What is this discussion about? Oldsmobile Intrigue, Heating / Cooling, Sedan


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#2 of 102
Climate does not cool by dirkwork
Apr 05, 2006 (7:55 pm)
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Ok, after crowing about how much I liked my new 2000 GLS, it has developed a problem with the A/C. When I select AUTO and turn the temp to cool, it blows air on high speed but the temp does not cool and the compressor and cooling fans I have confirmed do not come on. Before this sudden problem, the AC seemed to work well.
 
We have confirmed that power does go to the relay for the AC, but its not making it to the compressor clutch to engage.
 
I noticed in the docs I got with the car that it had the controller replaced under warranty once before. I am hoping its not that. Also wondering about a sudden loss of coolant, maybe that would also have the same effect like if the evap coil rusted out.
 
Any hints from anyone?
 
Dirk
#3 of 102
taking to dealer for evaulation on AC by dirkwork
Apr 07, 2006 (9:09 am)
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Replying to: dirkwork (Apr 05, 2006 7:55 pm)

After doing some work on the AC issue, we didn't see any codes in the computer, the fuses are ok, the relay gets power when the AC is requested but replacing it does not solve anything. The entire AC system is grounded through the ECU so it can be shut off at WOT and if motor overheats, etc., so the problem could be there.
 
We're not equipped to go much further, will have a dealer evaluate the issue. BTW, this car is basically like a small Cadilliac Seville STS, so my dad's shop manuals apply the 3.5 GLS more often than not. The 3.8 is probably more like other cars.
 
Dirk
#4 of 102
Re: taking to dealer for evaulation on AC [dirkwork] by indrgb
Apr 07, 2006 (3:36 pm)
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Replying to: dirkwork (Apr 07, 2006 9:09 am)

Dirk,
 
Put a gauge on the AC suction pressure port. If the pressure is very low, then the pressure switch will not allow the compressor clutch to engage. If the pressure is near zero, go buy a couple of cans of 134a and put them in. Some cars (not sure about the Intrigue) have PCMs that lock out the compressor if low pressure switch cycles X times. You may have to pull the PCM fuse or disconnect the battery briefly. If this works, then the previous owner topped off the refigerant to get it through the sale. You then need to look for a leak.
#5 of 102
Re: taking to dealer for evaulation on AC [indrgb] by dirkwork
Apr 11, 2006 (11:01 am)
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Replying to: indrgb (Apr 07, 2006 3:36 pm)

indrgb - Thanks, although too late!
 
I could have saved some money by following your advice, if the AC compressor is not running, chances are there is no gas in the system and the computer has shut it down. I had the dealer fix and it was a bit over $100 but it runs fine now. Couldn't find leak, it was not perceptible, but I'm guessing the evap core. they also put dye in, so we'll run it and see what happens. good for now.
 
Dirk
#6 of 102
Got a new A/C by redline65
Apr 27, 2006 (12:45 pm)
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I finally got the A/C fixed in my '99 GL. Last summer it wasn't cooling well and my compressor was groaning pretty loud whenever the A/C was on (probably the clutch going out). I had my mechanic top off the refrigerant and that got me through the summer, but a few weeks ago it was back to not cooling well.
 
Took it in this week for a new compressor, dryer, hoses, and orifice tube. Now it's nice and quiet and cold again. An expensive repair, but I'm not too mad about it since the car has been paid off for nearly 4 years and I haven't had to repair much outside of the warranty.
 
Next up will probably be replacement of the loose front hubs and maybe new struts all the way around. At 82K miles the suspension is wearing out, I think.
#7 of 102
AC fixed by dirkwork
May 17, 2006 (10:56 am)
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My AC failed again after getting it charged right after buying the car used. The receipt the guy had said he charged it in August of the prior year, but it makes you wonder if the charge was only to get it sold. But anyway, the dye the dealer put in let it be found that the condensor got holed by a rock or something. The Intrigue has a low bottom-fed cooling system. Has anyone had this sort of trouble in the past? I have not, but did have a radiator rot out from salt on the roads once. Thinking of putting a mesh or something to protect it.
 
Oh yea, don't know if I got taken or not but the condensor cost $800 for everything, and they had to change the radiator fluid while removing the radiator.
 
Other than that, the car has been great. Even the wife who snubbed her nose at the "grandma car" has gone out of her way to drive it :~)
 
Dirk
#8 of 102
AC only cold on one side; temp gauge is wrong by heather_ebay06
Jun 15, 2006 (5:38 pm)
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Hi,
I have a 99 Intrigue and have several problems with it. Mainly, the AC only blows cold on the passenger side. The driver's side is either warm or the same as the air outside. The temp. readout on the display NEVER reads correctly. It could be 85 degrees and it will read as 67 degrees. Has anyone else had this problem? I have tried playing with all the knobs...especially the one that selects a colder/hotter temp for each side.
 
Any ideas on this would be greatly appreciated.
Thanks
#9 of 102
Re: AC only cold on one side; temp gauge is wrong [heather_ebay06] by bayview6
Jun 16, 2006 (1:52 pm)
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Replying to: heather_ebay06 (Jun 15, 2006 5:38 pm)

Regarding the temperature reading, the sensor is probably dirty. It is located in front (or back?) of the bottom of the radiator on the passenger side. With the hood open, look for a wire that goes in that direction. You will probably have to bend a sheet of plastic to see the sensor. Anyway, get a wet cloth and wipe the dirt off the sensor. If the sensor in a day or so doesn't give a correct reading, then a new sensor is needed. Cost about $11 at NAPA. Probably something you can do yourself if you don't mind getting your hands dirty. the hardest part is finding the darn sensor.
 
regarding the main problem, does your Intrique have an air filter for the cabin and have you ever changed it? When I changed mine it was filthy, filthy. It was seriously cutting down on the air flow when A/C fan was on high. Probably not the cause of your problem but worth knowing about. I suspect that the cause of you problem is an air diverter plate is not working, maybe a vacuum line is bad. Never had that problem so can't be more specific. Run an internet search for other ideas. You are not the first one this has happen to but I can't remember the fix.
#10 of 102
Re: AC only cold on one side; temp gauge is wrong [heather_ebay06] by donp9
Jun 16, 2006 (2:12 pm)
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Replying to: heather_ebay06 (Jun 15, 2006 5:38 pm)

Your problem may be the ambient temperature sensor. It is a small sensor (easily replaced)that is located on the front radiator air baffle on the passenger side. I found it was easiest to lay on my back and look up to locate it unless you have a hoist. The part is inexpensive-around $10 I think. I had the same problem you described with the reading not matching the outside temp and this fixed it. Once you replace it you have to drive the car at a speed of 20 mph for approx one and a half minutes to set the ambient temp. good luck.

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