-
Expert
103 Answers
- Posted on Jul 01, 2011
Re: 99 GMC Sierra 4.8 1/2 ton 2 wheel drive new body...
If both vents are blowing air in general then you may need to get your air conditioner recharged, but if the front vents aren't blowing at all then you may just have a jammed vent flap and you can fix that from under the hood next to the blower motor. check you rowners maual for the exact location
×