Https://www.amazon.com/1990-Buick-Century-Owners-Manual/dp/B00119SE0M
For sale on Amazon.
$8.95 plus $3.99 for shipping - Total price $12.94
Might be faster to drop by a wrecking yard and grab one.
SOURCE: need buick century egr diagram
If your car runs bad with an EGR code then I would suggest that the EGR valve be replaced. I would like to know what code was set on your computer. It would help greatly. When the EGR malfunctions, you will have rough idle and possible stalling. If you have a code indicating EGR it may also condem the cat converter.Please show any codes that are set. Thanks Moe
SOURCE: i need the firing order to my 2001 buick century
For your 2001 Buick Century 3.1 liter V-6 VIN "J" check...
Hope thats help (remember rated this) Good luck.
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