Skip the auto shop - Our mechanics make house calls

Q: Possible transmission failure?

asked by on

Hi..service engine soon light is on and off after restart...and the transmission is not giving power all the time..actions?

My car has 128000 miles.
My car has an automatic transmission.

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function. Other functions controlled by the TCM are components such as a kick down switch, traction control system, and cruise control module. Any of these may also affect the way the transmission control module performs and controls the transmission and the shifting of your vehicle. I would suggest having a professional from Your Mechanic come to your location to properly diagnose your transmission problem.

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!
  1. Home
  2. Questions
  3. Possible transmission failure?

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: Electrical components malfunction

Your model Mercedes uses an electronic controller called SAM (signal acquisition module) to actually supply power to many electrical components. There are multiple SAMs in your vehicle and one of these is not working properly. A professional mechanic with specific...

Q: Car won't go over 2rpm or 15mph after it died. Have a clue what it is?

It is possible that your battery is just too weak at this point to handle the extra power that higher RPMs demand. More power is required for the fuel injectors and ignition components. Try charging the vehicle for a long...

Q: Trying to figure out what making my car die! I've notice the dashboard blinking too fast the die off

Hello there. In most cases a car will stall when one of two things happen. Either the engine is being starved of the right amount of fuel to air mixture or the fuel inside the combustion chamber is not able...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.