Q: Speedometer not working when warm.

asked by on

The speedometer does not work on my Chevy S10. I replaced the speed sensor and the instrument cluster, and it is still not working. The speedometer works fine when first starting or in cold weather, but quits working once the motor or weather warms up.

Due to the fact this condition is caused by both outside weather and engine temperature I am inclined to look at the vehicle speed sensor side of the circuit as interior cabin temperature is less effected especially by engine temperature. The wiring at the vehicle speed sensor needs to be checked, also the speed sensor needs to be checked that it is generating voltage. Due to the conditions that the failure occurs running new wiring and replacing the connector at the speed sensor may be the repair as it may be difficult to create conditions where the speedometer works and fails for testing. You may want to enlist the help of a mechanic, like one from YourMechanic, to assist in the diagnosis and repair of this issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Speedometer not working when warm.

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: Dashboard backlight randomly doesn't work

The dash lights on your instrument cluster is controlled by the dimmer control module or also called a dash light brightness controller on the left side of the steering column. While watching your radio lights, turn your headlights on and...

Q: Do your radio have something to do with your lights.?

You did not mention if it is inside dash lights or outside lights? Either way an electrical issue would need to have the fuses and switches in the light system checked for proper operation and power to and from them....

Q: Q: Speedometer broke.

The vehicle speed sensor (VSS) is the most likely cause of your inoperative speedometer. The powertrain control module (PCM) uses the VSS signal to determine the control of outputs such as speedometer operation. The VSS circuit or speedometer gauge could...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...