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Do you have the correct size tires/wheels on the vehicle? Look on the driver's door post or in your owner's manual for the correct size. Incorrect size tires will effect the accuracy of the speedometer. If you are running the correct tires then the vehicle speed sensor (VSS) may need replacing.
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ā 14y ago
John Duran
John Duran
Tires or wheels may not be the right size. Or the vehicle speed sensor may need replacing.
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How do 20 inch rims effect a car?
It will affect the speedometer. For example, bigger rims will make you go faster than what the speedometer is actually reading. If it say's 50mph with regular rims, then with larger rims you will be going faster.
1994 Chevy Cavalier Z24- The speedometer is reading a faster speed than actually going about 40 mph faster Already changed the speed sensor Any ideas?
speedo cable?
Why does my Speedometer read faster than I am driving?
The size of tires can effect that accuracy of a speedometer. Larger tires will cause the speedometer to read less than you are actually going.
What effect would a Larger Rolling Radius have?
it could affect the speedometer reading, (actually going faster than is indicated), and abs operation would be affected as wheel speed would change.
Does size of tires make a difference in the speed and speedometer?
If you change the size of the diameter of the original size of tire , YES If you go LARGER in diameter , you will actually be going FASTER then your speedometer indicates and If you go SMALLER in diameter , you will actually be going SLOWER than your speedometer indicates
If a speedometer only goes up to 85 mph does that mean 85 mph is the fastest the truck can go or can it go faster?
The speedometer in any vehicle does not stop a car from going faster, which many cars can go much faster than the speedometers highest number. Sometimes vehicles are limited from the factory to achieve a speed lower than that on the speedometer like my 2006 silverado says 120 but does only 99. However your truck can go faster than 85 mph.
Why cant a car not go faster than the speed on the speedometer?
it can
Does tire size change speedometer reading?
Yes, if you get bigger tires it will say you are going slower than you are, and visa versa, you can go to a mechanic to get it recalibrated
Can you change to smaller tires on a Nissan Xterra?
That will mess up your speedometer and odometer. It will look like you are going faster than you are (not a real problem) and your miles will add up faster (a problem when you want to re-sell).
How do check speedometer calibration 1996 Dodge Intrepid?
find a stretch of federal free way and drive at speedometer reading of 60 miles per hour for 10 miles . have a passenger with a stop watch measure time between mile markers. record the time you get on the stop watch, a watch reading of less time of 60 seconds will tell you that you are going faster than the speedometer is reading if it is 57 seconds (five over) or if it takes more than 60 seconds per marker it is reading (5 under).60 divided by the seconds of a stop watch times 60 will tell you miles per hour.60/ 57(stop watch reading from marker to marker) x60 equals 63.15 miles per hour.
If you replace a car's wheels with smaller ones will the speedometer reading be faster or slower than the car is actually going?
Faster as there is smaller wheel circumference per rotation. If your wheel is 1m around, your speedo will have been configured to know that you will travel 1m per rotation but if its only 90cm the car will still think you have done 1m per rotation so therefore you are actually travelling slower than your car is telling you.
You have a 1991 Ford Explorer and the speedometer seems to read faster than vehicle is traveling How do you calibrate a speedometer?
First, make sure the vehicle has the right size tires. Look on the door plate or in the glove box to find the size recommendations. If the tires are sized correctly, the speedometer cable gear can be changed to affect the speedometer displayed speed. Remove the cable where it enters the transmission tailshaft, count the number of teeth and get a different size gear depending on whether you want the speedometer to display faster or slower. If the speedometer is showing slower than you are actually travelling, get fewer teeth on a replacment gear. If the speedometer is showing faster than you are actually travelling get a gear with MORE teeth on the replacment gear.
