Question about 1999 Chevrolet Silverado 1500

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Highheat fan was the only control that working

Now the high heat control is not working. Something was hot and I noticed a little smell.

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I had a 2001 doing the same thing. Mine was a poor connection at the blower motor resistor assembly. This is located on the passenger side floorboard under the dash. It is a flat connector with five or six wires going to it. Turn your ignition key on, turn your heater on high and wiggle the connector, there is a good chance that it will start working. If it does you'll need to disconnect the connector and clean the terminals with a small pocket screwdriver, small pick or equivalent tool. Good luck.

Posted on Feb 12, 2009

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Sounds like you have the same problem as I had. The blower motor is located in the far right upper corner under your glove box. near the firewall on the passenger side. the relay is located in the outer housing and mine was shorting out. Also my thermostat controls on the dash were going. Finally It just quit. Had to replace both parts. Works great now. Also sometimes no heat at all, or just air conditioning.

Posted on Feb 11, 2009

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