How come my 4 wheel drive is not engaging?

Asked by Nov 30, 2014 at 10:20 AM about the 2007 Ford F-250 Super Duty XL Super Cab 4WD

Question type: Maintenance & Repair

checked the vacuum pump and it is working. Now what ?

1 Answer

36,615

Not a ford guy, but is your differential switch good? Do you have relays that actuate your 4wd? Does your truck have a transfer case module?

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