hot air coming through defroster on top of the dash after replacing actuator

2003 CHEVROLET SILVERADO
113 MILES • 6.0L • V8 • 2WD • AUTOMATIC
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CATHY CROWLEY
  • MEMBER
  • 1 POST
replaced actuator last night, this morning hot air was coming through defroster on top of dash?
Dec 6, 2016 at 9:15 PM
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JOHNNYT73
  • ✓Experienced Mechanic
  • 924 POSTS
Which actuator did you replace? These GM trucks have been known to have incredibly annoying HVAC issues. I think there is a recalibration you have to go through when you replace it.
Dec 6, 2016 at 9:58 PM
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CATHY CROWLEY
  • MEMBER
  • 1 POST
one on the passenger side. I may have missed the recalibration part. Can anyone tell me how its done?
Dec 6, 2016 at 10:02 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
pull HVAC fuse inside truck for sixty seconds with key on then reinstall it will reset actuators.
Dec 6, 2016 at 11:07 PM
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