Q:

What causes an automatic transmission to stop shifting gears?

A:

Quick Answer

If an automatic transmission has trouble shifting gears, it could be because the transmission fluid is low, the fluid is the wrong viscosity or the throttle cables need adjusting. If these factors are not the problem, then it is best to take the vehicle to a licensed mechanic for service.

Know More
What causes an automatic transmission to stop shifting gears?
Credit: Bryan Mullennix Photographer's Choice Getty Images

Full Answer

The first thing to check when an automatic transmission has trouble shifting is the transmission fluid. If it's low, one should refill it. If it's not the fluid, one should check if the fluid is the right thickness based on the owner's manual recommendation. If it's too thick, it prevents the fluid from flowing properly and will cause shifting problems. Finally, one should check the throttle cables. One should be sure the cables are properly secured and then test drive the vehicle again. If the vehicle still has a problem, it could be a much larger issue that requires service.


Is this answer helpful?

Similar Questions

  • Q:

    What happens when my transmission fluid is low?

    A:

    When transmission fluid is low, the transmission tends to jerk or slip when changing gears. The vehicle may also speed to high revolutions per minute while in neutral or without the vehicle speeding up or spontaneously slip out of gear. A burning smell is another sign that transmission fluid may be low.

    Full Answer >
    Filed Under:
  • Q:

    What is the way to perform a Nissan Pathfinder transmission fluid check?

    A:

    To check the transmission fluid, start the vehicle, park on a level surface, use the parking brake, shift through all gears and then put the vehicle in park, remove the transmission dipstick and clean it completely, return the dipstick and remove it again and then check the level of the fluid in the "COLD" area. To get an accurate reading, the vehicle must be running when checking the transmission fluid.

    Full Answer >
    Filed Under:
  • Q:

    What can cause a whining noise in a transmission?

    A:

    A transmission can prompt a whining noise if the operating system has malfunctioned, the gears are not operating correctly or the transmission fluid needs to be changed.

    Full Answer >
    Filed Under:
  • Q:

    What does a transmission control solenoid do?

    A:

    The transmission control solenoid communicates to a car when it is time to shift gears, if the car has an automatic transmission. If the shifting in the car's engine is balky or has other problems, the issue is likely an error with the control solenoid. Because a fairly sophisticated measurement of hydraulic pressure is necessary to operate the transmission, a solenoid that loses sensitivity to this factor is headed for repair or replacement.

    Full Answer >
    Filed Under:

Explore