Skip the auto shop - Our mechanics make house calls

Q: Front differential not working properly

asked by on

My 4wd doesn't work, the actuator works and the shift motor works. I lifted the entire truck and put it in 4 hi and the front wheels spin, but I can stop them by hand. There are no grinding noises or anything out of the ordinary. I have just replaced the cv axles and hubs. What would be the problem in the front differential?

My car has 192000 miles.
My car has an automatic transmission.

A: Hi there, thanks for writing in. If the tir...

Hi there, thanks for writing in. If the tires can be stopped and the driveshaft continues to spin, then there is an actuator assembly issue in the front differential. If the driveshaft stops spinning, then the problem may be in the transfer case which is much more common. I usually determine which one it is first and then drain the fluid in that system and look for metal. If metal is found then there is a problem and either one will need to be rebuilt. I would have a transmission specialist take a look at this. Hope this helps and best of luck!

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: problems with car choking and stopping dead

There are a few common causes for a car to stall like this. The most common would be the fuel pump, alternator, or a ignition switch fault. I would have this checked soon to prevent further damage. A qualified technician,...

Q: Lloosing moter pressure

It sounds as if you may have sprung a coolant leak during the high speed driving. I would recommend having a cooling system pressure test performed to see if any leaks were sprung due to the high speed driving. This...

Q: Code says Lean bank 1 and 2

Hi there. It sounds like there could either be an air leak or sticking O2 sensors. I have personally seen O2 sensors that become stuck lean/rich and create a host of problems with the air/fuel mixture readings; I've also seen...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.