Question about 1999 Buick Century

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Possible solution to stalling '99 Buick. My '99 Buick Century would die for no apparant reason with no error codes. After 4 days at a Buick dealership and many frustrated mechanics, the problem was corrosion from under the battery location. The wiring harness had small amounts of corrosion internally. Check the wiring under the battery for any corrosion. This has been the problem on more than 1 vehicle that we are aware of. No service bulletin has been issued by Buick.

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  • 61 Answers

Had this problem on a Chrysler and it turned out to be the ballast resistor

Posted on Jun 05, 2017

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Posted on Jan 02, 2017

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SOURCE: Starts fine, Idles fine, Drives Fine for a while

you might want to chk. the crank sensor and or cam sensor. sounds more to me that it could be fuel problem. chk. fuel pressure. pump could be on its way out. don't be fooled by hearing the pump running as they sound like they are pumping but there not, at least not enought pressure to keep it running. pressure should be around 50 p.s.i.

Posted on Jan 06, 2009

  • 1 Answer

SOURCE: STEREO WIRE CODES DIAGRAM FO A 1998 BUICK CENTURY

need codes to hook up radio to 1999 buick century

Posted on Mar 07, 2009

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SOURCE: 2003 buick century air conditioning

had the exact same problem turned out it was the air temp. actuator motor part# 604107 from rockauto.com for like $35.had to pull out glove comp. and black panel by feet to get to it ,good luck!!!

Posted on Jun 01, 2009

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SOURCE: i have a 1998 buick century limtied

I would suggest buying a Haynes/Chilton book for both models, they may even be one in the same if the years are close enough. Look up the schematics for both and compare the differences circuit by circuit. There may be some slight differences with connection fittings, but thoroughly review the schematic diagrams first.

Posted on Jun 01, 2009

  • 1 Answer

SOURCE: I need to replace the 99 buick century side mirror

There is a small plastic piece (triangular shape) at the top of the door panel, opposite of the mirror. It is held in place by a plastic clip. You can gently pop that out, with a flat blade screwdriver or something similar. That will expose 3 bolts with nuts on them. On my 2000 Century, they are 10 mm. Take off those three nuts, and the mirror will come off.

Posted on Jul 19, 2009

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My 2005 Buick Century died driving down the road and will not start back up? Please help!


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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

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1999 Buck Regal Stalls While Driving


Possible solution to stalling '99 Buick. My '99 Buick Century would die for no apparant reason with no error codes. After 4 days at a Buick dealership and many frustrated mechanics, the problem was corrosion from under the battery location. The wiring harness had small amounts of corrosion internally. Check the wiring under the battery for any corrosion. This has been the problem on more than 1 vehicle that we are aware of. No service bulletin has been issued by Buick.

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