Skip the auto shop - Our mechanics make house calls

Q: Abs service light on, and speedo is bouncing, not shifting gears properly

asked by on

Truck as a bad time shifting after the abs service light appeared and speedo started bouncing

My car has 147534 miles.
My car has an automatic transmission.

A: One of the most common components that the ...

One of the most common components that the ABS and transmission both rely on for smooth operation is the speed sensor. The transmission speed sensor is a magnetic sensor that provides this information, allowing the transmission to shift smoothly. The sensor counts the internal number of revolutions of the transmission and transmits that information to the transmission control unit, where the data is used to determine the rotational speed. Having the transmission speed sensor replaced by one of our local mechanics would be the best option as long as this is the source of your issues.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Water leaking

Since the vehicle is overheating, it's safe to assume the "water leak" you see may very well be coolant leaking. If the coolant level is low, that can make the engine overheat. There are many components to the cooling system...

Q: Transmission stuck in gear in Drive 2007 Chevrolet Silverado 2500

Hi there - it's possible that your problem source is the torque converter lockup clutch NOT releasing as the truck slows down. This would lug the engine as though it's in top gear until vibration, or an engine stop/start sequence...

Q: Truck independently accelerates and speedometer sticks on zero

Hello. This sounds like the throttle position sensor is failing. This is a known problem with your vintage Silverado. Contact your Chevy dealer and/or GM Customer Service for repair advice.

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 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.