2003 Buick century speedometer is going crazy

Asked by Scott Jul 15, 2016 at 07:38 AM about the 2003 Buick Century Sedan FWD

Question type: Maintenance & Repair

Speedometer recently has been going up and down like crazy while driving causing down shifting while driving

3 Answers
3,165

Bruce answered 7 years ago

The servo motor driving the needle in the instrument cluster has gone bad. Look into having the cluster rebuilt.

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mikedmills answered 6 years ago

I was having the same problem and I replaced the speed sensor and it rectified the problem on my 2003 Buick Century.

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Guru6MC3H answered 4 years ago

2003 Buick century. I was having the same problem and replaced the speed sensor a few weeks ago. The car was fine after that but now it's doing the same thing as before but only while turning right. Any suggestions on why this is happening would be great.

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