Skip the auto shop - Our mechanics make house calls

Q: Why is my transmission slipping?

asked by on

recently transmission is slipping at 40+mph, runs through other gears fine. trans fluid is full. Serviced on time, no previous problems, strong running engine. please advise? Cannot understand always cared for, never beat on. Will I lose the gear or be stranded roadside?

My car has 184000 miles.
My car has an automatic transmission.

A: This may be a sign of a faulty transmission...

This may be a sign of a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car’s computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear. When this is faulty or not working properly, this can cause a delay in gear shifting or in some cases cause the car to not shift at all. I would recommend having an expert from YourMechanic come to your location to take the car for a test drive to more specifically determine the cause for this.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Transmission thinks it's in 5th gear. But resets when you turn it off and turn it back on

Hello. If your transmission is having trouble identifying gears, then there is likely an issue with one of the sensors or components. It may be possible that the input or output speed sensors, or one of the shift solenoids is...

Q: P0491 and P0492 Is the codes I'm getting on 2001 BMW 325i

Hi there - the P0491 and P0492 codes reflect a problem with the secondary air injection pump mechanism - not enough air flow is detected. This problem could be the pump itself (check fuses and relay), the check valve, or...

Q: Check engine light on

This code is for evaporative emissions (EVAP) purge system performance. The EVAP system is responsible for preventing fuel vapor emission from entering the atmosphere. The EVAP system uses a purge valve to allow stored fuel vapors from the fuel tank...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.