Skip the auto shop - Our mechanics make house calls

Q: Speedometer

asked by on

My Safari reads double actual miles I'm doing if I'm doing 45 miles an hour the speedometer says I'm doing 90 what problem would that be and how do I fix it everything on the car is Factory no real changes no tire changes just started about 4 months ago

My car has 246000 miles.
My car has an automatic transmission.

The problem may be with the speedometer itself or the speed sensor. The vehicle should be scanned and road tested to see what the speed sensor is inputting to the computer. If the sensor is at fault then it will not read the actual speed correctly when driven. Alternatively, the speedometer may be at fault if the speed sensor does read correctly. I’d consider enlisting a qualified technician, such as one from YourMechanic, if you decide to get this fixed. They can diagnose the issue with your speedometer and help you fix it accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Failing PCV

There should be two sides to your PCV system. One side has the PCV valve and hose that goes to the intake and the other side should be a breather hose from a valve cover to the air cleaner or...

Q: Drivers window motor replace

The spring should not normally be taken off. Only the motor should be removed and replaced. The regulator may be held in a vice while motor is removed and replaced. You will need to remove the entire regulator from the...

Q: Transmission

Hello. I will help you with your question about the transmission on your Chevrolet S10. There are both electronic and hydraulic shift controls in your vehicle. A likely cause of the failure to shift or downshift is a valve in...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.