4x4 not engaging HELP
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Joined: Sep 2013
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4x4 not engaging HELP
I have a 2002 Ford Superduty. I recently had installed a BDS 8 inch suspension lift. I also had the upper and lower ball joints replaced. All this work was done by a certified garage. Today i went to pull out my boat from the ramp, turn the switch inside the cab to 4x4 high. The light came on but 4x4 did not engage. As i pulled the boat out of the water the rear tire spun in the sand but the front did not. As i cleared the ramp and on level ground i turn the switch off and back on i heard not but the light can on. With the 4x4 light on i turn the wheel and pulled forward i noticed no hopping as when a truck is in 4x4. Initially when i turn the 4x4 switch on i hear a clunk up front but not after. Drove home drive tran appeared fine no noise.
Tuned
Joined: Mar 2013
Posts: 343
Likes: 5
From: Plumsteadville PA
Is your truck diesel? Could be a vacuum line issue. I have been messing around with mine because the air vents sometimes only blow out of the defrost vents no matter where the switch is set (most likely due to a vacuum leak in the system somewhere). Do you have ESOF hubs where you can also lock them manually? If so I would see if you can lock them manually and see if the the 4x4 engages. You might not have noticed but try putting your air conditioning on with the blower running and switch the 4x4 switch and see if it switches up to the defrost vents. If it does it could be a vacuum leak.
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