My wife's well kept 1994 Grand Cherokee (99k miles) hates me. After sitting outside in wet weather for a week or two it starts fine, runs fine, but won't release the ignition key when I shut it off. Man.... what a pain!

If I continue driving it regularly, it will eventually dry out enough after 2 or 3 days of regular use and let go of the key. It will then work properly as long as I drive it regularly. But if I let it sit outside again for a week or two the problem repeats itself again... and again... and again. Arghhhh!!

Each year we average 100-inches rain and 150-inches snow. We have no garage and she rarely drives it now, so this is getting to be more of a problem.

Anybody have any ideas? (Dealerships are no help, of course.)