Latest Speedometer Calibration Questions
- My 05 Chevy silverado has a randomly malfunctioning speedometer. They are telling me to replace the entire cluster, but its only the speedometer that is malfunctioning... can't I just replace the cable or fuse?
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Asked by Punkie_gal on Sat, 03/13/2010 - 15:10
- when i drive my 89 nissan sentra i cant tell how fast im going cause the speedometer went out
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Asked by gambit on Wed, 03/10/2010 - 20:32
- I have a 2002 Pontiac Grand Prix SE and my speedometer quit working. It occasionally works and jumps up and down. Everything else works...odometer, tachometer, trip meter, fuel gauge, and etc. What would cause just the speedometer to quit working?
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Asked by MrsSommer465 on Wed, 03/10/2010 - 20:14
- why doesn't electronic speedometer work on 1991 Dodge caravan
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Asked by tjdmom on Fri, 03/05/2010 - 11:31
- Does anyone know what the problem was on 2004 Chevy z-71 speedometer recall! Mine has gone out and the chevy dealer wants $500 to fix it!! Cant be that much to it!
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Asked by lanntansdad on Sat, 02/20/2010 - 19:40
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Online Auto Repair Manuals - Speedometer Calibration
ALLData: Do It Yourself Auto Repair Manuals
Information
What is a speedometer?
The speedometer is installed on the instrument panel of a vehicle and measures the speed in miles or kilometers per hour. While the speedometers of some older vehicles are mechanically driven, eddy current devices and electronic speedometers are the most common. Neither technique uses tire rotation to indicate speed. Rather, the speed indications are scaled to the rotation of the transmission, which may be subject to some error, and, from time to time, calibration may be necessary.
Is my speedometer accurate?
If not calibrated to an acceptable degree of accuracy, a driver may exceed or go below posted speed limits. Excessive error can be caused by putting on after market modifications, including tires with nonstandard diameters, using different differential gearing, or other specification modifications.
