Lyndon,
The on line manual at ALLDATA is pretty detailed for pulling the dash and getting to the evap... probably worth the 30 bucks to have the procedure first hand for this job.
Have never done it (so far, mine's still tight) but would really like to see this documented on the forum with good pix... I'm sure my day is coming...
I wonder what the % of failure is on these things...
KenP