Air only blows through defrost vent. A/C works fine.
Jul 13, 2010 at 5:08 AM
2005 GMC Sierra HVAC system
MARNATI
- MEMBER
- 2 POSTS
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Hi
Need to know if Automatic or Manual A/C. What needs to be done is system needs to be diagnosed with Scan Tool. Air flow controled by computer via actuator motors faul maybe in motor or sensor or limit switch.
Hope this helps
Thanks for donate
Need to know if Automatic or Manual A/C. What needs to be done is system needs to be diagnosed with Scan Tool. Air flow controled by computer via actuator motors faul maybe in motor or sensor or limit switch.
Hope this helps
Thanks for donate
Jul 13, 2010 at 6:33 AM
Had truck looked at and had the system "re-booted" seems to be working like new now. Thanks for help. Inexpensive fix!
Jul 14, 2010 at 2:35 AM
Glad to hear thought that might be needed cause you said A/C worked fine just only defrost.
Jul 14, 2010 at 8:10 AM
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