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01-23-2007, 01:35 AM | #1 | |
AF Newbie
Join Date: Mar 2005
Location: Sydney
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03 TB LT Heater Fan Speeds
Hi, I was just wondering if any of you knew how to fix, or what the problem was with my heater fan.
It will only work on speeds 4 and 5, 1, 2 and 3 do not work. I tried all settings but nothing will get them to work. they were fine 3 hours ago, but when I started the truck a few minutes ago to run to the store, notta. I will try later to see if it is an intermittent problem. I haven't heard any weird noises from it at all, it just stopped working. I've read about resistors and things, but is it something a novice could replace, or is it difficult. Thanks, John Griffin |
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01-23-2007, 11:45 AM | #2 | |
A990 racer
Join Date: Mar 2002
Location: Chestertown, New York
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Re: 03 TB LT Heater Fan Speeds
Blower relay/resistor is bad, very common, mounted on the heater case under the r/s dash to the left of the glove box, $28.00 from GM
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01-23-2007, 07:23 PM | #3 | |
AF Newbie
Join Date: Mar 2004
Location: Buffalo, New York
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Re: 03 TB LT Heater Fan Speeds
funny that yours suddenly only works on 4 and 5
my 2002 did the same thing over a month ago I haven't bothered to get it fixed yet |
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