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SUVs Chevrolet Suburban & Tahoe Chevrolet Suburban and Tahoe AC and Climate Control Questions
100 messages, Last post on Aug 30, 2008 at 5:50 AM
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Replying to: technokoz (Aug 29, 2006 6:34 pm) Mick San Antonio Go USAF!
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| I have a 2001 Tahoe and when I turn the temperature selector knob to full hot that's what I get, even when I turn the temperature selector knob back to full cold -- it still blows full hot. If I turn the motor off and let it sit for about a minute, then start it again, the air will blow cold at the cold setting. But if I nudge the temperature selector to a warmer setting, I get full hot again. Any ideas? | |
Does anyone know where the cabin temperature sensor is for the computerized climate control systems? There's a little perforated disk above the driver's seat in the hood liner, and sometimes I hear a noise from it - like something rotating and buzzing. I wonder if there is a sensor in there with a small fan to suck in air. If you know, please let me know - my problem seems to be that the computer doesn't realize when the temperature in the cabin has reached setpoint and a sensor problem would explain that. The dealer wants megabucks just to diagnose this, and I have no faith whatsoever that they will figure out what's actually wrong.
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Replying to: ge_cco (Feb 07, 2007 7:51 am) |
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Replying to: mickgz28 (Feb 06, 2007 11:07 pm)
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| Mick, need some help, I am handy with a wrench, but wary of tearing my dash apart. Is the flapper valve somewhat accessable? Any tips would be appreciated. thanks | |
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Replying to: ge_cco (Jan 25, 2007 11:18 am) I'm glad that you solved your problem. Thanks for the website references too - they're really great. It looks like I have also solved my problem. It turns out that the perforated disk in the head-liner above the driver's seat covers a device called an "aspirator", which is a small fan that sucks air out of the cabin over a thermister to measure the air temperature inside the vehicle. The thermister leads had bent and it was touching on the fan preventing it from spinning. Once I bent it back into place, the system worked normally. Not sure how it got bent in the first place!!
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| Does anyone know where I can buy the original Panasonic roof mount dvd for my 2003 Suburban. I have checked ebay. | |
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Replying to: ge_cco (Feb 13, 2007 6:13 am) How did you "get" to this area in the head-liner? I haven't found any good way to investigate the rattling. Could this termister/sensor be causing the rear compartment temperature actuator from working? The rear HVAR is stuck on cold, no matter if I change the temperature settings on the front upper console or rear console. I tried replacing the actuator, but that didn't fix it. Thanks!
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Replying to: ctmahanes (Feb 21, 2007 3:28 pm) I used a screwdriver to pry off the perforated disk in the headliner. It has four legs that clip into the cover on the "aspirator" assembly. They have actually used adhesive to hold the cable in place so that the assembly doesn't move very far when you do this. To get in there, I pulled the rubber door seal away from the frame, and the cover on the B pillar also pulled out - it's held on by several clips. THen I was able to get my hands up between the roof and the headliner, but there wasn't much room to see what I was doing or to manipulate things around. It turned out that the cover on the aspirator had become detached and when I got that back on and reattached the perforated disk, the system worked normally. If you had to replace the assembly, then you'd have to figure out how to disconnect the electrical connector - wouldn't be easy due to the difficulty of getting your hands in there and it wasn't obvious to me where the clip was that held the connector in place. Hope this helps, and if you find an easier way, please let me know in case I have to go in there again. Noel
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