98 Cadillac .... Quits

Our Cadillac has just started this thing where the engine just quits. It has happen a 3-4 times now over the past couple days while at the bank drive through and at a light. It will re-start but why would it be doing this? Do Caddy's have a glitch like this?

Thanks

Its usually the Crankshaft position sensors. You should have the codes checked and then have them both replaced if their codes are stored. They have been redesigned several times and the latest and greatest seem to work great.