1990 buick century idles rough when warm accelerates fine

SOURCE: 1996 Buick Regal

gas pump

SOURCE: 1990 buick century limited

Have you tried replacing the pick-up coil?

Dennis Mulford

• 1055 Answers
• Posted on Apr 19, 2009

SOURCE: 2000 buick century. starts and idles but cannot

fuel filter or fuel pressure regulator or tps sensor

SOURCE: stalls when warm , no start when warm

What you need to do is when it stalls out then check to see if your loosing fuel or spark.Check for spark at the spark plugs.don`t just check one.Check all the front 3 a least.If no spark then you probably have a bad ignition module.It is under the coils.Good luck.

SOURCE: 91 buick idles up and down after it watms

Check the Throttle Position Sensor and Egr vavle. Look closely at all vaccume lines and check for cracks, breakage and colasping lines.