what does this lever do? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

retodd7711 · 11-20-2007, 12:38 PM

This is part of fmy heater control. It is connected to my fan slide by a linkage. Without tearing it apart, What does it do? I can move it from side to side and I can't notice a change in fan or temp.

retodd7711 · 11-20-2007, 12:42 PM

Just some pix of the 69. And a thank you to members who talked me through diagnosing and replacing distributor. Especially you, Bob!

hdflstf · 11-20-2007, 12:44 PM

I assume it's the one operated by the top of the three controls on the dash (2nd picture). If so, it operated the defrost control which can direct airflow to the base of the windshield.

cameeks · 11-20-2007, 12:50 PM

it is the switch for upper to lower vents form what I can tell from the pic

retodd7711 · 11-20-2007, 01:36 PM

no. This is connected to middle (air fan) slide heat/def are controlled by top slide. Hot/cold by bottom.

cameeks · 11-20-2007, 01:43 PM

I will have to look at mine again

**oldgold70c10** · 11-20-2007, 02:14 PM

This is the air control damper. Think of the middle lever as having 5 positions. All the way left, the air door is closed, not allowing outside air in to the vents, move it to the right a little and the air door opens, but the fan is still off. Continue moving it to the right to select the 3 fan speeds with the air door open.
Hope this helps!

That is one sharp truck, btw!

11-20-2007, 12:38 PM	#1
retodd7711 chrome makes it go FASTER! Join Date: Feb 2007 Location: Cleveland Tennessee Posts: 2,884	what does this lever do? This is part of fmy heater control. It is connected to my fan slide by a linkage. Without tearing it apart, What does it do? I can move it from side to side and I can't notice a change in fan or temp. Attached Images __________________ She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005

11-20-2007, 12:42 PM	#2
retodd7711 chrome makes it go FASTER! Join Date: Feb 2007 Location: Cleveland Tennessee Posts: 2,884	Re: what does this lever do? Just some pix of the 69. And a thank you to members who talked me through diagnosing and replacing distributor. Especially you, Bob! Attached Images __________________ She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005

11-20-2007, 12:44 PM	#3
hdflstf Registered User Join Date: Oct 2007 Location: Desert Southwest Posts: 540	Re: what does this lever do? I assume it's the one operated by the top of the three controls on the dash (2nd picture). If so, it operated the defrost control which can direct airflow to the base of the windshield.

11-20-2007, 12:50 PM	#4
cameeks Long Fleet Club Join Date: Aug 2006 Location: Deer Park, TX Posts: 5,666	Re: what does this lever do? it is the switch for upper to lower vents form what I can tell from the pic __________________ Chris Meeks '69 Chevy Custom/10 Long Bed <-- Thread of the work I did before selling. Truck is now finished to the new owners design and running around. I was shown some pictures of the finished product. At least it survived the junk yard. FAQ Index by Krue Site Vendors Subscribe Here Forum Rules

11-20-2007, 01:36 PM	#5
retodd7711 chrome makes it go FASTER! Join Date: Feb 2007 Location: Cleveland Tennessee Posts: 2,884	Re: what does this lever do? no. This is connected to middle (air fan) slide heat/def are controlled by top slide. Hot/cold by bottom. __________________ She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005

11-20-2007, 01:43 PM	#6
cameeks Long Fleet Club Join Date: Aug 2006 Location: Deer Park, TX Posts: 5,666	Re: what does this lever do? I will have to look at mine again __________________ Chris Meeks '69 Chevy Custom/10 Long Bed <-- Thread of the work I did before selling. Truck is now finished to the new owners design and running around. I was shown some pictures of the finished product. At least it survived the junk yard. FAQ Index by Krue Site Vendors Subscribe Here Forum Rules

11-20-2007, 02:14 PM	#7
oldgold70c10 Who's got steelies? Join Date: Feb 2006 Location: Morrison, Oklahoma Posts: 1,025	Re: what does this lever do? This is the air control damper. Think of the middle lever as having 5 positions. All the way left, the air door is closed, not allowing outside air in to the vents, move it to the right a little and the air door opens, but the fan is still off. Continue moving it to the right to select the 3 fan speeds with the air door open. Hope this helps! That is one sharp truck, btw! __________________ 1969 C10 LWB W/ 250 I6 & 3spd 1970 C10 with '67 small window cab, 68 front end, blue; 305/TH350, 3.08 limited slip rear end, manual brakes, power steering; & 4-wheel drums-My daily driver. 1975 Chevelle Malibu Classic Coupe 350/th350 mint green 1970 C20 Suburban 350/700R4 4.10 gearing green & white 1978 Big 10 Silverado 350/th350, working ac, 2 tone blue-My summer daily driver 1983 GMC 1500 Sierra 305/SM465 2.73 rear end How to add a trip odometer to your 67-72 stock speedometer How to rebuild your Q-Jet My Truck Page My Youtube Channel Last edited by oldgold70c10; 11-20-2007 at 02:15 PM. Reason: punct.



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