1998 Chevy S-10 heater on

1998 CHEVROLET S-10
133,728 MILES • 4 CYL • 2WD • MANUAL
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E1129GLENN
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I have a 1998 Chevy S10 the heating and a/c system blow hot air all the time. I can not control the temperature of the sytem with the control knob at all. When the control knob is turned there is a clicking noise in the dash.
Mar 14, 2008 at 10:03 PM
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BLACKOP555
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sounds like your blend door is sticking and binding on something.

yours is either vaccum or operated by a motor. if its motor operated you will have to have the dealer do it as it is a dealer only part.
Mar 20, 2008 at 8:59 AM