What is the cause of a 2001 Buick LaSabre Custom not starting all the time? on 2001 Buick LeSabre

I changed the fuel filter & my 2001 buick lasabre custom started fine for 3 weeks. Then after 3 or 4 tries it would start & start fine for another 2 weeks. When key is turned 3 or 4 times there is no sound & then it will start by either key.The problem started months before changing filter.The car always starts but one day it may not start at all.

Asked by for the 2001 Buick LeSabre
1 answer
start with a fuel pressure check when it does not start. it should be around 40-45 lbs

Roy