Skip the auto shop - Our mechanics make house calls

Q: My car will go into neutral while I am driving it. To get it to work again, I have to pull over, turn the car off, and restart a m

asked by on

Car will just slip into neutral . Doesn't matter what gear it's in . Can only drive maybe 100 feet before it does that. Have to restart car for it to go into gear again and can go another 100 feet. Code said TCM was bad. We changed that and car still does it

My car has 191000 miles.
My car has an automatic transmission.

A: Hi there. Assuming you replaced the TCM (tr...

Hi there. Assuming you replaced the TCM (transmission control module) with a factory part, a transmission shift relearn procedure should have been performed. It could be that you have a TCM connector or wiring issue if the same code has returned.

Time needs to be spent to confirm the diagnoses. It could be you received a faulty TCM. A low transmission fluid level could cause the symptom of feeling like the transmission slips into neutral. The low transmission fluid level would allow the vehicle to move a short distance, until the filter could no longer pick up fluid.

When fluid drains back into the pan, the filter can again pick up the fluid until the fluid level goes below the filter. I recommend having the transmission slippage inspected and diagnosed by a certified technician, such as 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: Where is the O2 sensor located?

Hi, thanks for writing in. On most Dodge, GM and Ford V-6 engines, sensor 2 bank 2 is located passenger side, rear of the engine compartment. The 2011 Dodge Charger V-6 has four O2 sensors, but this one is it'll...

Q: Problems with my reverse gear

This is most likely an internal issue in the transmission. Normally when reverse starts to slip it is attributed to the B clutch. But since you are losing forward gears as well, there may be an issue with the G...

Q: My cranks but won't start

If it is the security system then the dash security light will be on or flashing. If it was a sensor, then the Check Engine Light will be on and the engine computer will have set a code. You should...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.