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Sunday, June 12, 2011

2005 Chevy Trail Blazer blows cold out top and bottom but not the dash

I have a 2005 Chevy TrailBlazer and ever since I replaced the battery The Air Conditioning Will not blow out the dash. The A/C blows out the top and floor but not the dash no matter what I set it on. I have checked all the fuses and don't have a clue what is going on here? Any help would be appreciated.

This is a common issue with the Trailblazer. You can disconnect the battery for two minutes and then reconnect it. Turn the key to "ON" and without touching the control knobs for 2 minutes the Mode Actuator should recalibrate itself. If you can not achieve dash function after that, you are looking at replacing the "Mode Door Actuator". Part is around $70.00 at the dealer. Should take any shop about an hour to hour and a half at the most.

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