Speratic speedometer at 40mphand lower

Asked by Jun 08, 2016 at 10:16 PM about the 1999 Chevrolet C/K 2500 Extended Cab LB 4WD

Question type: Maintenance & Repair

Starts shifting sporadically when the speed gets below 40mph. The
speedometer bounces sporadically and the antilock brake light comes on and
the brakes won't work properly.  If I come to a stop the throttle is weard and it
wont shift untill I reach 35 mph. When it does shift it hammers it. I have tried to
reset the powertrain control module but it doesn't stay set very long.

2 Answers

80

Check your output speed sensor

19,235

Or just change the speed sensor

Your Answer

Chevrolet C/K 2500 Experts

  • #1
    Rowefast
    Reputation
    290
  • #2
    COMETGUY61
    Reputation
    190
  • #3
    Andrew Olsen
    Reputation
    140
View All

Related Models For Sale

Used Chevrolet Silverado 2500
6 Great Deals out of 259 listings starting at $2,900
Used Chevrolet C/K 3500
230 listings starting at $4,999
Used Chevrolet C/K 1500
4 Great Deals out of 861 listings starting at $2,000
Used Dodge Ram 2500
156 Great Deals out of 4,925 listings starting at $2,999
Used Ford F-250 Super Duty
369 Great Deals out of 44,221 listings starting at $2,400
Used Chevrolet Silverado 1500
2,098 Great Deals out of 166,982 listings starting at $1,498
Used GMC Sierra 2500
4 Great Deals out of 148 listings starting at $3,495
Used Ford F-250
466 listings starting at $6,694
Used Ford F-150
2,264 Great Deals out of 181,810 listings starting at $1,000

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.