what it this, and should it be glowing? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lbpd719 · 04-22-2007, 07:21 PM

ok,

after replying to "what did you get done" and not having done a thing, I went out to my truck to clean up some of the stuff in the cab. I fired it up and as I was moving around the AC boxes which the PO disconnected (I had the truck running just to trickle up the battery) I noticed a glowing coil in the AC box which is still connected to the firewall..

here is a pic.. Any ideas anyone? the larger coil in the rear is the one that was glowing pretty well (was glowing but didn't come out well in the picture). It went out when I turned the truck off..

Thanks in advance for any info..

719

Longhorn Man · 04-22-2007, 07:25 PM

that is the blower resistor. If your blower was turned on anything but high, then yes, it should be glowing.

lbpd719 · 04-22-2007, 07:45 PM

That makes sense.. Thanks for the info..

one day I hope to get all that stuff back together, but might want to paint the dash first, just cant decide..

DangerBoy · 04-22-2007, 07:54 PM

Am I correct in assuming that if the resistor is bad then the blower wont blow?

cowdoc · 04-22-2007, 09:42 PM

Won't blow on anything but high, IIRC.

04-22-2007, 07:21 PM	#1
lbpd719 Zappaphile! Join Date: Apr 2007 Location: Los Banos, California Posts: 228	what it this, and should it be glowing? ok, after replying to "what did you get done" and not having done a thing, I went out to my truck to clean up some of the stuff in the cab. I fired it up and as I was moving around the AC boxes which the PO disconnected (I had the truck running just to trickle up the battery) I noticed a glowing coil in the AC box which is still connected to the firewall.. here is a pic.. Any ideas anyone? the larger coil in the rear is the one that was glowing pretty well (was glowing but didn't come out well in the picture). It went out when I turned the truck off.. Thanks in advance for any info.. 719 Attached Images __________________ 1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son

04-22-2007, 07:25 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: what it this, and should it be glowing? that is the blower resistor. If your blower was turned on anything but high, then yes, it should be glowing.

04-22-2007, 07:45 PM	#3
lbpd719 Zappaphile! Join Date: Apr 2007 Location: Los Banos, California Posts: 228	Re: what it this, and should it be glowing? That makes sense.. Thanks for the info.. one day I hope to get all that stuff back together, but might want to paint the dash first, just cant decide.. __________________ 1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son

04-22-2007, 07:54 PM	#4
DangerBoy Registered User Join Date: Nov 2005 Location: Springville, Ca Posts: 270	Re: what it this, and should it be glowing? Am I correct in assuming that if the resistor is bad then the blower wont blow? __________________ 2002 S10 ZR2 for the dirt. 1968 C10 shorty for the street. She said the truck would be the end of us. I still have the truck!

04-22-2007, 09:42 PM	#5
cowdoc Registered User Join Date: Feb 2007 Location: central NY Posts: 19	Re: what it this, and should it be glowing? Won't blow on anything but high, IIRC. __________________ Jacob '67 C20 fleet/wood; 250/SM420, coil rear...it's a work truck

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