Why won't this car start... sometimes?

Hi Stevie Ray, Because power was never the issue. I checked and cleaned all connections and bought a new battery (the one was old). But it did not resolve the situation. It's clearly an electronic issue. I'm just not sure how many possibilities there are.

what happens when you turn key to start,any lights,starter turning?or nothing including no light,no radio,no nothing.

Nothing at all. Sometimes it starts right up. Others it does nothing at all for a while. Usually 3-10 minutes mutes. Then it starts. Weird.

after i thought about this for a while,its been several years since my ignition switch was replaced.if i remember correctly,it was the same problem you are having.i had a guy do this for me,and he said i had some wires pinched.it corrected my problem,and i think i still have the old switch,even though the car,i sold it,later on to a co-worker.pushrod will be getting in here soon,hopefully he and some others will chime in on this.your switch is over $200.00 for your car.dont throw anything at it yet.

Might have to do with GM key passcode....I believe you have a chip in your key....the onboard module can fail....just looked at a Riv this weekend...same issue....no start, wait a couple miutes starts right up....have seen similar postings for same era Buicks and other GMs. Personally have not experienced the problem to resolve it but apparently it's not so uncommon.