Q: My car is still acting up and the speedometer and odometer is not working.

asked by on

So before my car had the codes p0720 and p1529. I got both my input and output speed sensors replaced hoping it will fix the problem but it did not help. My car is still decelerating and going into failsafe mode when I try to reach 45mph and the engine light is coming on and off. I took it autozone and it just has the code p7020 but I just fixed it. The man at autozone told me to put more miles on it to erase the code from the computer. How am I supposed to do that if my speedometer and odometer isn't working? What should I do now?

My car has 206000 miles.
My car has an automatic transmission.

Hi there. First remove the battery cables both positive and ground. Go in the cab and operate everything, even though there is no power. After 12 minutes put the battery cables back on. This will drain all power to the vehicle and reset the computer. Now you can drive the vehicle around to relearn the computer. If he speedometer still does not work, then the instrument cluster will need checked or replaced. If you need further assistance with your speed sensor not working and the computer putting the vehicle into limp mode, then seek out a professional, such as one from Your Mechanic, to help you.

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. My car is still acting up and the speedometer and odometer is not working.

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: How do I tilt the sunroof?

The sunroof can be tilted to bring extra fresh air into the vehicle. To open the sunroof tilt, push the Sunroof button (located on the ceiling) upwards. To close the sunroof tilt, pull the button downwards.

Q: p0720 code will not stay gone

Hello. If the vehicle speed sensor has been replaced then the wiring to the sensor must be tested. If there is high resistance or any breaks in the wire then this will occur. I have also seen the signal gear...

Q: Engine rpm drops at idle every few minutes. Codes for both system too lean and system too rich have been generated.

The possible causes of what you describe include include vacuum leaks and EGR system faults, a faulty idle air control (IAC) valve or circuit, faults in the fuel pump control circuit or fuel pressure regulation, defective spark plug(s) or ignition...

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...
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...
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.