After swapping the engine out in his scooter, [James Stanley] made an unfortunate discovery. The speedometer was digitally controlled, and while the original engine had a sensor which would generate ...

If you've ever modified a car with smaller or larger tires or, perhaps, a different final-drive gear, you've immediately screwed up your speedometer. This is, of course, annoying, but for modern cars ...

Dear Auto Doctor: I own a 2004 Volkswagen Jetta and the speedometer recently stopped working. The rest of the dash works fine. Before I go to the dealer, I would like your opinion. Allison Dear ...

The basic formula for the job goes like this: New tire size divided by old tire size multiplied by speedometer reading equals actual mph. Not that difficult, but it only works for your head. Your ...

When six of the same type speedometer all stopped functioning, it meant teardown time to pinpoint the cause as well as come up with a remedy to get them back into working condition. I use bicycle ...

Modifying an older Pontiac is often like painting a house. The large surface areas go very quickly, and then you get mired in the trim and wood work. When swapping or upgrading components, they often ...

We don't have to tell you that late-model overdrive transmissions have become a prototypical upgrade for any kind of performance car. The number and variety of these transmissions makes that decision ...

30 May 2007 MASHHAD -- Iranian technicians have managed to produce the Piezo electronic speedometer sensor. Akbar Amini, the manager heading the research team, said the sensor will be used to estimate ...

A recent update to Google Maps has allowed motorists to see the speed they are travelling, similar to the function already offered by the navigation app Waze. With GPS speedometers becoming more ...

Concerned that your new car is faster than the speedometer says? Speedometers are designed to err slightly on the fast side, but your odometer should still be accurate, says Volkswagen. "Speedometers ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Cadence sensors are a must for bikers and cyclists who want to maximize workout results. These ...