I have 01 buik century that my speedometer is not workin right and when my speedometer goes down my car shiftsdown i replaced speed sensor but didnt help what can i do

Asked by Oct 12, 2013 at 06:28 PM about the 2001 Buick Century

Question type: General

1 Answer

995

The speedometer malfunction and downshifting could be related to the speed sensor. Thus a question, did the replacement of the speed sensor fix the downshift issue? If so, the speedometer has what are called "servos", which are small motors receiving signals from the PCM via various sensors (such as the speed sensor), and use them to drive the needles in the various components in the speedometer cluster. These go bad after time, and will require a rebuild of the cluster by an expert. Odometer fade (resistor failure) is another common issue in the cluster as well. If the speed sensor didn't fix either item, a pronounced downshift could be a symptom of several things, but the failure of the pressure control solenoid in the transmission may be the issue, and could have a pronounced affect on the speedometer read as well. Hopefully this is not your issue as this repair is not easy (removal of the front driver's side wheel assembly and part of the transmission), and quite expensive. Good luck.

2 people found this helpful.

Your Answer:

Buick Century Experts

  • #1
    John Saffrahn
    Reputation
    1,040
  • #2
    Tom Demyan
    Reputation
    910
  • #3
    John Pate
    Reputation
    670
View All

Related Models For Sale

Used Buick LeSabre
1,262 listings starting at $1,750
Used Buick Regal
85 Great Deals out of 3,942 listings starting at $5,300
Used Chevrolet Impala
375 Great Deals out of 25,638 listings starting at $950
Used Buick Park Avenue
284 listings starting at $2,600
Used Honda Accord
574 Great Deals out of 103,380 listings starting at $950
Used Chevrolet Malibu
489 Great Deals out of 51,427 listings starting at $1,995
Used Toyota Camry
761 Great Deals out of 72,913 listings starting at $1,000
Used Chevrolet Corvette
96 Great Deals out of 15,045 listings starting at $3,620
Used Honda Civic
366 Great Deals out of 49,151 listings starting at $500
Used Ford Taurus
194 Great Deals out of 15,823 listings starting at $600
Used Ford Explorer
874 Great Deals out of 67,606 listings starting at $800

Used Cars For Sale

2005 Buick Century For Sale
31 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.