2000 Chevrolet Blazer • 182,000 miles

I was just driving my vehicle and it made a weird sound almost sounded like air coming out of a tire then it stopped shifting. I was able to make it home which was only a block away checked the transmission fluid and it was low added a quart. Now when I crank the vehicle it makes a weird whining sound and will not move in reverse but will move in drive. I have not tried to drive it until someone look at it.
September 26, 2013.

Check for a vacuum leak like ahose off or a hole in it. Then have a trans guy scan for codes it may have a bad clutch/seal

Sep 27, 2013.