Speed sensor...on the passenger side of the tranny where the axle enters the transmission.
With some custom fabrication I have read of a GM 3.4L engine with a turbocharger.
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.
either over or undersized tires or other than stock gears ? or a svv valve or instrument panel goin out...
to recalibrate spedo, u need to go to a mechanic that has electronic equipment to read your computer. recalibrating is done thru computer
instantaneous speed. =)
instantaneous speed
Speedometers are not allowed by law to under-read, but are allowed to over-read by no more than 10%. So at a true 30mph, they can legally read anything between 30mph and 33mph. Because they read the speed via a sensor in the transmission, not the true speed of the vehicle across the ground, they have to be calibrated such that they under-read slightly when the vehicle is lightly laden and has brand new tyres fully inflated. As the tyres wear, and if they are slightly under-inflated, or compressed by a greater load in the vehicle, the speedometer will over-read by more.
On the speedometer, no. It will indicate a speed but it will not be accurate.
A car has a speedometer. When you read the speed that it indicates, and you know the direction in which you're driving, then you know the car's velocity.
At 60 mph the speedometer will read 58.1 mph.
Of course you can, but it is not advisable. Your speedometer will read 58.6 at a true 60 mph. Stick with the OEM size.
check if it has a speedometer cable if not the speed sensor needs to be replaced