Skip the auto shop - Our mechanics make house calls

Q: stuck in 4 low

asked by on

replaced t-case motor now runs fine if its only hooked up by wire harness not if mounted on t-case

My car has 157000 miles.
My car has an automatic transmission.

A: If the motor moves through it's range, ...

If the motor moves through it's range, there may be a problem with the transfer case. Try this first. When you switch from high to low range, gears have to disengage and reengage. When you are attempting to switch the range, the transmission should be in neutral, the parking brake off, and you may have to let the vehicle roll for it to engage. It will not switch if there is tension on the drivetrain. If this does not work, you can try to change the transfer case manually. Do this with the the vehicle jacked up and wheels off the ground. If this does not work, the transfer case will need to be diagnosed. If you need help with this, consider YourMechanic, as a certified technician can come to your home to diagnose your shifting issue in person.

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: Low speed and delayed gear change

Your transmission is very likely the cause of your problems. The ABS light flashing may be its own issue, and if your main issue is transmission related, then I am almost certain it is. Electrical issues would be the only...

Q: Is it possible to install my broken serpentine belt back my car?

Hi, thanks for writing in. I'm a little confused by your question. If you're asking whether it's possible to install a broken serpentine belt on a vehicle and drive 20 miles, I'd say not. If the belt is physically broken,...

Q: Tailgate hatch stuck

Hi there. The only way to fix the handle would be to have a certified technician remove the inside panel and inspect the tailgate's mechanism fully. Sometimes, pieces can become misaligned and they just need to be put back together...

Related articles

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...
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.