Skip the auto shop - Our mechanics make house calls

Q: Motor making a weird noise

asked by on

The car will not go in reverse. I believe it is the vehicle's speed sensor or transmission sensor.

Hi. Unfortunately, I doubt this is a sensor problem. The transmission control module (TCM) uses input from the vehicle speed sensor (VSS) to regulate line pressure for shift timing and for torque converter clutch (TCC) application. A failed VSS can result in abnormal shifting, lack of TCC application, and loss of high gears. The Transmission range sensor (TR) is used to determine the desired transmission gear and to control mainline pressure. A failed TR can cause harsh shifting engagement or a no start condition. Neither of these items would result in losing only reverse. It sounds like you are having an internal transmission problem. A trained mechanic, such as one from YourMechanic, will be able to inspect the shifting problem further and give you an accurate explanation of what the problem is.

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: Car stalling when driving

Both of the codes you mentioned have the MAP sensor in common. It is possible that the MAP sensor is faulty on your vehicle. When the vehicle's PCM picks up that the MAP sensor is not functioning, it goes into...

Q: no fire going to plugs

Hello. By far the most common cause of this symptom on your vehicle is the ignition control module. This is located inside of the distributor and it can cause a no-crank if it fails. The control module can typically be...

Q: Where is the solenoid purge valve located in a 2012 Chevrolet Captiva Sport?

Hi there. The purge solenoid valve is typically located on the passenger side of the vehicle, under the hood and attached to the firewall. In order to locate yours and to review the correct removal and installation procedures, I would...

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...