I read on this site that it is best to cycle the 4wd once a month to help prevent the electric motor from sticking. Should I use both 4hi & 4lo or is using just 4hi adequate?

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97 F150 SC 4x4, 4.6L, 8.8inch, 3.55, 265/75R16

 

How long should one stay in 4WD. I have a manual transfer case, but like to engage the 4WD once a month to make sure that everything is working. I usually only go about 100 feet or so, then switch back to 2WD. Should I drive in 4WD longer?

 

The longer the better. What you are really tying to do is make sure the t-case gets fully lubricated. I usually do some full lock turns (on dirt of course) to make sure the front end gets some good lubrication too. I would try to go more than 100 feet, but that's just me.

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2000 F-150 XLT, 5.4L, 4x4, auto, Extended Cab, Deep Wedgewood Blue, 3.55, Towing Package, Sliding window, CD player, 4 wheel abs/discs, 255/70/16's, bedmat, K&N Gen II FIPK
Planned Mods: Black Max Tonneau, Grill Guard (Manik or Polar Bear), More lights

 

I take a detour in 4wL at 40 MPH at least once a month down a one-mile dirt road.

 

y2k,
how many rpm's are you turning at 40mph in 4-low?....i can't imagine my truck hitting 40 in 4-low....Rich

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-1999 F-150 4X4 SC
-4.6, auto
-3.55 gears
-Westin chrome nerf bars
-dual straight pipes
-hikerdadrich@aol.com

 

use both, when you switch into low, you'll hear another clunk when the transfer case switches into low. I try to use hi and low once a month also.

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2000 F-150 XLT, 5.4L, 4x4, auto, Extended Cab, Deep Wedgewood Blue, 3.55, Towing Package, Sliding window, CD player, 4 wheel abs/discs, 255/70/16's, bedmat, K&N Gen II FIPK
Planned Mods: Black Max Tonneau, Grill Guard (Manik or Polar Bear), More lights

 

40 MPH @ 3,000 RPM.

33 MPH @ 2,500 RPM.