Tahoe/Suburban AC Control Unit 96+

[99'Subourbon]

As the title states. Let me know - thanks.

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[addiction2bass]

i have one from my truck but a few of the rear plastic tabs broke off. still works fine i just replaced it with another good one with good tabs. i also just replaced the blower switch on it just a month or so before removing.

 

[df2x4]

You need the one with the rear defroster switch, correct? That's what's in my 'burb anyway. Amazon has them but they're not cheap.

http://www.amazon.com/ACDelco-15-72547-Original-Equipment-Conditioning/dp/B000C9GYOA/ref=pd_sim_263_5?ie=UTF8&dpID=31v6fd9D7NL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1PCVVFH9XRHPQGNMBP93

Here's the one without the rear defrost option.

http://www.amazon.com/dp/B000C9CC14/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=3RS5MENGS94QJ&coliid=I3PLZ3GGKM49HT

 

[99'Subourbon]

You need the one with the rear defroster switch, correct? That's what's in my 'burb anyway. Amazon has them but they're not cheap.

http://www.amazon.com/ACDelco-15-72..._UL160_SR160,160_&refRID=1PCVVFH9XRHPQGNMBP93

Here's the one without the rear defrost option.

http://www.amazon.com/dp/B000C9CC14...TF8&colid=3RS5MENGS94QJ&coliid=I3PLZ3GGKM49HT

Yeah - unless I can fix mine. High only works on the blower options, nothing in between.

 

[df2x4]

IIRC a blower motor resistor on it's way out can cause that, might be worth looking into before you drop all that money on a new control panel if you haven't already.

EDIT - Found the thread.

http://www.gmt400.com/threads/how-to-replace-blower-motor-resistor.1026/

 

[99'Subourbon]

IIRC a blower motor resistor on it's way out can cause that, might be worth looking into before you drop all that money on a new control panel if you haven't already.

EDIT - Found the thread.

http://www.gmt400.com/threads/how-to-replace-blower-motor-resistor.1026/

Thanks, I'll do that first then. Do you know if it's a specific resistor - pictures on that old thread are e-vapor.

 

[df2x4]

I've never done it personally, had a shop replace mine. Some Googling turned up this, though.

http://www.fullsizechevy.com/forum/...maintenance/412096-blower-motor-resistor.html

EDIT - And this. Check the picture thumbnail on the first post, might be helpful for locating it in your 'burb.

http://chevroletforum.com/forum/tahoe-suburban-25/96-suburban-blower-motor-resistor-help-49401/

 

[Sampuppy1]

Blower resistor is behind the glove box on 95+. I've done mine. If you're sitting in the passenger seat and drop the glove box it'll be on top of the HVAC unit behind the glove box. There's two 7mm screws holding it in and a plug for it on top. It's Diamond shape. Here's what you'll be looking for.

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[L29Sub]

Good looking truck in your pic..heater or none! The blower switch function can be checked at the resistor prior to pulling the thing. Pull the plug and verify command voltage at the plug. If none, bad panel control unit...if there 12V on the plug...bad resistor. May be a better way...? The plug pinouts can be googled and easily sorted out. I can address that also. As is obvious, I'm not exactly a regular. Plan to do more.
If you pull the dash trim, be real careful with the 4 way flasher switch....ask me how I know this! The 4 way switch can be removed, but be certain that the lock tab is completely disengaged from the switch.