2002 Buick Century 2002 BUICK CENTURY ENGINE CODES?????

2002 BUICK CENTURY
Avatar
FRANK777
  • MEMBER
  • 7 POSTS
Engine Mechanical problem
2002 Buick Century 6 cyl Front Wheel Drive Automatic 50 000 miles

THESE ARE THE CODES THAT CAME UPP
P0440- EVAP SYSTEM
P0303- ENGINE CYL NUMBER 3 MISSFIRE

FOR THE EVAP SYSTEM WHERE IS THE PURGE SOLENOID?THE SENSOR? THE PURGE VALVE?

A DIAGRAM WOULD BE PERFECT?

THE GAS CAP AND THE VACUUM LINES SEEM TO BE ALL GOOD

PLEASE LET ME KNOW ASAP?
Nov 26, 2009 at 11:04 AM
Advertisement
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
the one code may have been set from the gas cap not being tightened enough. You should hear 3 clicks at least when getting gas. It could also be the purge valve stuck. the number 3 misfire could be a bad plug/wire/ or injector not putting fuel in the cylinder. If you don't know how to check plugs or wires take it to a pro.
Dec 2, 2009 at 12:45 PM