How do you get a boost connection on 2000 Buick lesabre?

There's no "Boost Connection" in a 2000 Buick LeSabre. The LeSabre, in that year, used naturally aspirated engines, meaning they don't have a turbocharger or supercharger to "boost" the air intake. Therefore, there's no system to connect to for a "boost."

If you're having trouble starting your car, the issue isn't related to boost. Instead, you might need:

* A jump start: If the battery is dead, you need to connect jumper cables to another car's battery to get it started. Make sure you follow the correct procedure for connecting jumper cables to avoid damaging your car's electrical system.

* Battery replacement: A weak or dead battery is a common cause of starting problems.

* Starter motor repair or replacement: The starter motor might be faulty.

* Alternator repair or replacement: A failing alternator won't charge the battery.

If your car isn't starting, focus on diagnosing these more common problems rather than looking for a nonexistent "boost connection." A mechanic can help if you can't determine the cause.