Fuel pressure leakdown. Likely causes of this are (in order of most likely to least.):
1) You're too old.
2) Faulty fuel pressure regulator, replace.
3) Leaking fuel injector. Sniff the Oil dipstick noting any gasoline smell. If any, replace all fuel injectors.
4) Leaking fuel pump. Replace if bad.
5) Leaking Fuel line (pressure side) Check by letting the engine idle for about 20 minutes. If any fuel drips onto the ground, look for a leak source and repair.0
what can cause a 2002 buick lesabre to not crank
check crank sensor
I would start with the Pickup Coil and the Crank Sensor.
could be the crank sensor, the go out. the have a reputation for that.
check igntion coils
1992 buick road master after you put a new battery it crank but wont start what is the problem
There are several reasons that can cause your 1995 Buick Century to quit running. The most common reason is a lack of fuel. A bad fuel pump can cause the engine to quit running.
ccheck the crank position senson and coil pack's
if it has a crankshaft sensor that's bad
where is the Kill start button on a buick century 2003?
A bad cam or crank sensor can cause a no start, but the engine will still crank or turn over.
my 1993 buick park avenue wont start after i changed the front motor support you can jump it from the sodinoid and it will crank whats wrong could it be the security system