I used the trick to tap the key with a hammer to start the car then bought a new lock cylinder from JCWhitney and had a locksmith rekey and install it. Problem is, within a week, the key will turn but frequently won't start the car. It's as if the key is only turning on the accessory. The Chrysler dealership says there is a gear mechanism that might have gotten damaged by tapping the key. Anyone know the details? What is the technical name for that mechanism (dealership wants $340 + 1 hour labor).
Please email email@example.com if you have the answer by Jan 2013.