Question about 1996 GMC Sierra
Check under your hood and there should be fuses one should say blower fan or something of that sort. I use a chimeing voltometer to check my fuses. If there is a chime then it is good you can also use the old fashion light up fuse checker. Hoe this hellps
Posted on Jan 04, 2014
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Posted on Jan 02, 2017
My 2003 Sierra's blower came on by itself in the garage while I was sleeping and ran the battery completely down. I had to replace the blower switch located under the glove box next to the blower at the bottom of the right corner of the dash. The switch is in front of the blower and held in by two screws. Disconnect the two wire connections. This is a "dealer only" part and cost me 65.00. Also check the wire harness with seven wires connected to it for melted plastic. It will be marked "ABCDEFG". If it has melted, you'll need to replace it. Pay attention when reinstalling either part, that the wires "ABCDEFG" match the switch in that order.
Posted on Jan 17, 2009
Check coolant level. Check for heat at the heater hose going from water pump to heater core at firewall. Check to see that cable is moving coolant control valve from the closed to open position. Low mileage so it shouldn't be plugged heater core.
Posted on Jan 07, 2010
Testimonial: "You were absolutely correct. Low coolant level. Put in some 50/50 and we're nice and toasty now, but need to find out why coolant was so low. Thanks."
If you look under pasenger side dash at floor board you will see blower housing. unbolt it and you may have to remove one dash bolt at bottom pry dash out a little and remove motor
Posted on Oct 19, 2010
Testimonial: "Thank you for your help."
It is located on top of the heater box in the passenger side remove the glove box to gain acess there are two 7mm srews and a relay braket holding it in place it is a tight squeeze but can be removed with a 1/4 inch ratchet.
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Hope this helps
Posted on Jan 13, 2011
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