Skip the auto shop - Our mechanics make house calls

Q: Truck won't move while in gear

asked by on

My truck starts up and shifts gears perfectly fine. But it will not move. Would it be an issue in the transfer case or in the transmission itself?

My car has 133000 miles.
My car has an automatic transmission.

A: Hello and thank you for your question. The ...

Hello and thank you for your question. The problem could be 3 different things wrong with your truck. First, look at the brake system to ensure that the brakes are not engaging when you put the vehicle in gear. If the brakes are okay, then the problem lies within the transmission or transfer case.

The transfer case could have the shifter placed into neutral causing the vehicle to not move. Try tapping on the shifter motor on the transfer case to see if it is stuck. Then start the engine. While the transmission in park, put the transfer case in 4wd and then in 2wd. This will make the shifter motor move and engage the transfer case into gear. Then put the transmission into gear. If the vehicle moves fine, then you would need to replace the shifter motor on the transfer case. If the vehicle does not move, then either the shifter motor is not functioning or the transmission is failing.

You could have a problem with the input shaft seals on the transmission. If the drive circuit and reverse circuit seals are split on the input shaft, then the transmission will statically lock itself. The fix to this is to take the transmission out and replace the input shaft seals on the input shaft. To have this diagnosed, I would recommend having a certified technician like one from YourMechanic, diagnose the potential transmission issue and advise you on the proper repair.

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: Transmission swapped and gears don't work

The 4L60-E should be interchangeable from vehicle to vehicle so this is more likely an electrical issue. Fuses to the powertrain and transfer case shift module need to be checked and any faults should be read out. Also, inspect the...

Q: Truck shuddering at 45 to 50 MPH.

A shudder could be a problem with an ignition coil pack. On most cars they start to fail around 150,000 miles. I would have a technician come out and inspect the coils and you will probably get a p0300 code...

Q: what causes transmission to not shift?

I would check to see if there are electronic shift solenoids in your transmission. Basically, the shift speed is controlled electronically through solenoid operated valves. Heat affects these if they are malfunctioning. For example, resistance increases as temperature rises. Also,...

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 Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...