Skip the auto shop - Our mechanics make house calls

Q: Transmission slipping and Check Engine Light is on

asked by on

When warmed up the check engine light comes on and the transmission slips and trust to go into gear while brake is applied

My car has 200000 miles.
My car has an automatic transmission.

A: Hi there. From your description of the tran...

Hi there. From your description of the transmission slipping when warm, leads me to believe, the transmission fluid is not low. The vehicle's computer is, apparently, recognizing the fault and turns the Check Engine Light on. Accessing the codes stored may help with the diagnoses. Slipping in and out of gear while brake is applied seems unusual. Possibly a poor electrical connection at the transmission? I recommend having your vehicle's slipping transmission inspected and diagnosed by a certified technician, like one from YourMechanic.

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・Save up to 30%

Get a quote

What others are asking

Q: TCM causes engine light to come on, but no transmission problems - is it safe to drive it?

The first thing I would do is scan the vehicle for codes to determine if the TCM is still the issue. If codes for the TCM appear, depending on the code and the problem, you may be fine to drive...

Q: Grinding noise when brake is applied

A grinding noise can be the brake pad material or the pads worn down to metal. The shaking when you brake is most likely the front rotors being warped. Sometimes the rotors will feel okay during light braking, but will...

Q: Popping sounds while making a turn, front wheels slipping

If you hear a popping sound, this could be related to suspension parts that have play. I would recommend having a steering, suspension, and braking systems inspection to determine where your pops and grinding sounds are coming from. This...

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...
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...