No A/C through upper vents...comes out the defroster

Asked by Jul 30, 2011 at 07:23 PM about the 2000 Chevrolet Blazer 4 Door LS

Question type: Maintenance & Repair

A/C is not coming through my vents...comes out the defroster.  Can someone please help as to what the problem might be?  Thank you!

2 Answers

2,955

could be a bad mode door actualor

2 of 2 people found this helpful.

check the vaclines under hood at firewall for splits,cracks,softness in lines,the vents are vac controlled and if 1 vac line is bad it will just work on defrose,their is also a check valve in same place that 3 vac lines hook to,is round,replace that,can get at any auto store in the help section.

3 of 3 people found this helpful.

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