Engine light just came on and once in while it stalls but once in neutral starts right up
Take it to advance or autozone and have them read the code. They will do it for free. Get the code and what it says and repost here and we will help you try and fix it.
Search Buick LeSabre Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Buick LeSabre Experts