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1998 GMC C2500
1998 GMC Sierra. Air condition fan sounds like the fan is running strong but not bowing hard out of the vents?
Saturday, July 23rd, 2011 AT 9:25 PM
Check and test the air blend door/actuator
Saturday, July 23rd, 2011 AT 9:47 PM
Is it coming out the defrost instead?
Saturday, July 23rd, 2011 AT 10:49 PM
Yes it's coming out of the defrost also!
Sunday, July 24th, 2011 AT 8:28 AM
That means you're having a problem with the mode door actuator mechanism. It's located on the left end of the HVAC housing. Check it while the system is running. It could just be stuck or bound up.
Sunday, July 24th, 2011 AT 11:38 AM
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