"Hot Feet Fix" - S-SeriesForum.com

Soon2BeDraggin · 07-14-2003, 04:01 AM

Quote:

If you can find vacuum schematics a few years back you will see that they added a vacuum actuator to the case called a "slave" valve, it has a grey hose going to it from the control head.
BUT this is only supposed to exist with AUTO CLIMATE CONTROL!
A bad example is doc# 389165, it shows the hose and actuator I speak of but I can't find anything that shows operation for the "slave" door.
What happens on vehicles with C60 manual HVAC is that the door causes ambient air under pressure at the cowl to be forced through the heater core making it nice and toasty and cooking the driver's foot because the mode door rests in the "heat" position.

Open the glove box, lift up the wire hook and swing the door down. Now you will see right in front of you this actuator with the grey hose, take the grey hose off the vacuum actuator and stick a bolt in the end of it so it won't hiss or leak, tie it back so it won't rattle around and close the glove box.
You just fixed this concern, made the customer happy, flabbergasted your SM and if you think I am full of dookie, try all the other modes. They are TOTALLY unaffected by disconnecting that actuator, the heat is just as hot and the A/C is just as cold.
I think in the '96 manual comparing the vacuum scematics on C60 and whatever auto is on the utility you will see that the grey hose and the actuator are not supposed to exist on C60 manual HVAC vehicles.
I am not exactly sure what this "slave" door is supposed to do but I know when you turn the HVAC knob to Off it fries your feet.
I think someone sold them on the idea they could use one case for all units and neglected to mention that you'd have a few hundred thousand folks with burnt toes.

I thought TAC figured this out by now with someone's help I guess I never called and told them because I know how to fix it already.
I have done this to half a dozen customer's cars and they all leave happy as a lark.

Call me nuts if you want but that's how to fix it and althought it is "normal" (because ALL of them do it) it's still wrong.

i got this from ZR2.com, dunno if its been posted or not tho.

rlith · 07-14-2003, 07:38 AM

I wonder if this applies to the 1st gens...

BoneDaddy · 07-14-2003, 12:38 PM

I don't know if it applies to 1st gens or not, but it surely works on the 2nd gens. I read that on ZR2.com a few days ago and tried it. It really keeps your feet cooler while driving on hot days with the windows down and doesn't affect the operation of the HVAC system at all.

slammed98sonoma · 07-14-2003, 01:58 PM

I think this should be stickied.

r b g · 07-14-2003, 02:26 PM

Quote:

Originally posted by slammed98sonoma
I think this should be stickied.

it has been asked many times, even myself... gonna try it out tonight!!!

slammed98sonoma · 07-14-2003, 11:42 PM

Is air supposed to still blow out? I still have air blowing out but its not hot anymore.

Jay02XBlazer · 07-15-2003, 08:47 AM

I tried it last night and it works thanks for the tip

07-15-2003, 10:34 AM

The air should still blow out but not hot, it should be the same temp or slightly cooler than outside air.

Soon2BeDraggin · 07-15-2003, 06:33 PM

i finally posted something usefull

r b g · 07-15-2003, 07:06 PM

Quote:

Originally posted by Soon2BeDraggin
i finally posted something usefull

07-14-2003, 07:38 AM	#2
rlith Insane Network Engineer Join Date: Dec 2002 Location: Pittsburgh, Pa. Posts: 1,425	I wonder if this applies to the 1st gens... __________________ goto www.pghconsulting.net/teal to see pics of my ride!_____________________________________ 95 Blazer, 4.3L CPI, EGR Mod, 2001 X-treme zq8 steering box, and other mods... "I live with a retard and 2 deaf people...It's not so bad..." - Grandma Support Sirius!

07-14-2003, 12:38 PM	#3
BoneDaddy SSF Subscriber* Long Time Gone Member Join Date: Aug 2001 Location: Raleigh, NC Posts: 950	I don't know if it applies to 1st gens or not, but it surely works on the 2nd gens. I read that on ZR2.com a few days ago and tried it. It really keeps your feet cooler while driving on hot days with the windows down and doesn't affect the operation of the HVAC system at all. __________________ 2002 BlaZeR2 stock 2000 Silverado Z71 Long Bed 5.3/auto Mods: MagnaFlow Cat-Back, Airraid intake, Wait4MePerformance Tune, 1999 Contour 175k mile beater

07-15-2003, 06:33 PM	#9
Soon2BeDraggin SSF Subscriber* I Got It, But It's A Crew Join Date: Apr 2002 Location: San Diego, CA (Southern Cali) Posts: 3,802	i finally posted something usefull __________________ http://img.photobucket.com/albums/v4...dragginsig.jpg 05 GMC Sierra Crewcab SLT 4/6 on Weld 20's. OBX LT's ORY. S&B CAI. Tuned by Black Bear Performance

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07-15-2003, 08:47 AM	#7
Jay02XBlazer VW Tech Join Date: Jan 2003 Location: Louisville, ky Posts: 2,002	I tried it last night and it works thanks for the tip

07-15-2003, 10:34 AM	#8
13siegs Guest Posts: n/a	The air should still blow out but not hot, it should be the same temp or slightly cooler than outside air.

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