What will cause my 1996 buick century to misfire.

SOURCE: 96 Buick Century can't pass imisions code P1441

P1441, EVAP Emissions System Flow During Non-Purge.
you seem to have an evap problem these problems are hard to diagnose sometimes it can only be the gas cap or maybe rust around the seat of the gaz cap
get the code erase and see if it comes back on and if it does check gas cap and arroung the filling neck if there is rust if no visible rust apears you will have to get it check with smoke to see where it leaks

hope it will help you

Have a great day

Denis

SOURCE: 96 Buick Century won't pass imisions code P1441

code is evap system flow during non-purge
check the hoses for holes or broken disconnected hoses also check the fuel cap emissions diagram under the hood will give u the location of the evep purge solenoid if all checks ok then replace the soienoid and clear the codes
rank & vote my solution

Marvin

• 85242 Answers
• Posted on Apr 06, 2009

SOURCE: Need to replace tail light bulb on 1996 Buick Century

Inside the trunk, under the carpet behind the tail lights will be a whole bunch of small plastic nuts, running from one side of the car to the other. Take all of these plastic nuts off, and the whole tail light assembly will come off in one large piece. Find the bulb you need to replace, and reassemble

SOURCE: 1998 buick century cylinder 5 misfire

it sounds like you have low compression on cyl 5 might be bent valve.

SOURCE: 4T60E transmission in a 1996 Buick Century won't

Shift solenoid ,manual shift valve, blockage in 3rd gear circuitry, defective band and clutches.