Skip the auto shop - Our mechanics make house calls

Q: Speedometer stick and jumps

asked by on

Speedometer started sticking. Will be stuck at 0 when you move then will jump to maybe 20 mph and will seem to be stuck there for a minute and then will jump again to maybe 30 or 35 mph. What sensors/cables should I be looking at?

My car has 173000 miles.
My car has an automatic transmission.

A: Hello. Your Geo utilizes a speedometer cabl...

Hello. Your Geo utilizes a speedometer cable (rather than an electronic sensor and wiring) to communicate speed from the transmission to the speedometer cluster. Given your mileage, the cable lining has probably deteriorated and the cable should be replaced. If you are going to have this done, I recommend having a professional, like one from YourMechanic, inspect the speedometer issue and replace the cable if needed.

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: Stalling tottering 50 mph

Hello there, thank you for asking about your 1991 Geo Storm. There may be an issue in the vehicle's ignition system. Hire an experienced technician, like one from YourMechanic, to inspect the distributor assembly for any faults. The ignition coil...

Q: Won't Shift into drive

The VSS (vehicle speed sensor) buffer is located on the drivers side near the ECM. I have heard of instances where the connector between the VSS and the buffer has become disconnected. The wiring between the VSS and the buffer...

Q: Oil on hood release

If a gasket was recently leaking motor oil and it is now leaking oil again, the best option would be to reattempt the repair with a new gasket and clean the mating surfaces of the two parts a little better...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.