Originally Posted by mike97se
1. Climate control is acting up. A/C blows thru floor vents for 5-20 minutes before finally starting to blow thru dash vents. Is this the computer?
Doubt it; 5-20 minutes is an eternity in the computer'* world; i.e. if it'* going to barf, it'll do so right away, and flaky computers tend to _go_ crazy, rather than start out that way and get better again later.
More likely you have only marginal vacuum with which to operate the system, and it takes your car a while to accumulate some. I would check for vacuum leaks under the hood, or possibly a partially-clogged catalytic convertor. (The default system setting without vacuum is to blow through the floor vents as you've seen.)