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1999 Ford Super Duty F-250 Lariat Reg Cab 137

1999 Ford Super Duty F-250
Trim Info:
Rear Wheel Drive, Reg Cab 8'
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September 26, 2011, 8:02 am

AutomotiveForums M

Question: My 4 wheel drive doesn't kick in right away.

I had a problem in the spring. It was stuck in 4low and wouldn't come out. It finally dropped out after about a week. I changed the u-joints on the front axles and now it won't go into 4x4 unless I drive it around for awhile with the switch left in the 4high position. It drops out right away when I switch it off but then when I want to use it, it won't go in again. Where should I start?

September 28, 2011, 4:46 pm

Ron W
Expert Mechanic

You're going to need a shop to look at it. Either the computer is seeing a fault and won't let you have 4wd, or the hubs themselves may be having an issue.

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