Question about Cars & Trucks
When i shift from 4x4 to 2x4 is feels like something hits hard and boom its back to normal 2 wheel drive. i had the fluid changed in both differentials and transfer case. It still does it, but when i shift from 2 wheel to 4x4 its fine. is that the way its suposed to be?
Shifting either way should be smooth and easy IT appears that you may have a problem developing in the case. get it checked out by a reputable dealer
Posted on Jan 06, 2013
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Posted on Jan 02, 2017
did you put it in nuetral then switch it, wait a few seconds then put in reverse and back up a couple of feet and nuetral again, i had to do this on my explorer sometimes.
Posted on Sep 22, 2008
Did you change the transmission filter and gasket as well as the transmission oil before running your truck.
Posted on Sep 28, 2009
I would suspect the vacuum disconnect motor or the vacuum solenoids for the disconnect motor ( or the vacuum lines ), but best to confirm
Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.
With the engine running ( and wheel chocked, parking brake on ) have someone shift into 4WD, and watch the shift motor to see if it operates
It is on the front axle, looks like this
If the disconnect motor does not shift, you can check the vacuum on the lines with a vacuum gauge. Blue line is 4WD operation, pink line is 2WD operation.
The vacuum solenoids are on the firewall, and look like this
This is the block diagram for the ESOF vacuum operation of the disconnect motor.
This is assuming you have checked the fuses for the transfercase shift motor, and the vacuum solenoids.
Posted on Feb 18, 2010
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