Skip the auto shop - Our mechanics make house calls

Q: Won't shift out of 4*4 low

asked by on

Im coming to u I need serious advice I have a 98 GMC sierra k1500 first the transmission that was in it when I got it blew the 3-4 clutch out for starters so I went n got a new tranny put it in wanted to test 4*4 to make sure it worked well it did but didn't bc now its stuck in 4 low so I was told the transfer case motor the transfer case so I changed both of those then it still wouldn't work so was told the transfer case control module so changed it still nothing and it blew the 3-4 clutch in this transmission as well it sounds like its trying to change but all it does is clunk around but won't ever change any advice would be greatly appreciated thanks in advance BTW I've changed all the components and put a whole new transfer case in it and how do u manually shift a transfer case

My car has 211000 miles.
My car has an automatic transmission.

A: If you remove the transfer case shift motor...

If you remove the transfer case shift motor, then you can manually move the mechanism that the motor mated to on the transfer case. The motor only turns one direction or the other to switch the transfer case. If you cannot turn the mechanism then the transfer case has been damaged internally from driving on the highway in low range. I have seen transfer cases that have been internally destroyed by driving in 4WD at high speeds in this vehicle and others with a part time transfer case. You should also check the front axle actuator to see if is working properly shifting in and out. Otherwise, the system will not come out of 4WD.

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: Wheel bearing

Actually, you needn't drive it anywhere because YourMechanic can dispatch a certified mechanic right to your location, at your convenience. and remove and replace the bearing at lower cost than a shop. The service to request is wheel bearing replacement....

Q: Car running on seven cylinders

It is possible that the PCM may be at fault. However, I would be more suspect of the ignition coil for the cylinder that is not firing. I would ask for help from one of the mechanics at YourMechanic to...

Q: Will not start and burns relay switch.

Hi there. Check the ground strap from the engine to the body and see if its broken or detached. If the strap is good, then check the contacts to the starter relay to see if you are having a voltage...

Related articles

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...
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.