How to remove endine in 2001 buick lesebra - 2001 Buick LeSabre

I would suggest either a clogged catalytic converter or a faulty fuel pump

What are endine parts?

Can you turn the engine by hand ?
Is the battery fully charged and connections good between battery and starter ? During hot weather a battery can develop a dead cell which will cause it to have 12 volts but no cranking power.

a lot of repairs can be done at home, but you need a bible(repair manual), even after 30 yrs doing mechanics i still consult manuals regularly, no two cars are the same

Depending the repair facility,you'd be looking at a $450.-$550. job with 4 wheel alignment!

The evaporative canister purge valve is found between the upper intake manifold and the rear valve cover.

Often times the bottle is anchored from underneath in the wheel well.

how many miles on the car?

It is in the side cover on the valve body. The transmission needs to be removed to access the solenoids.

Fuel filter could be cluged, has it been chg. lately? Fuel pump could be weak, or ignition switch going bad.