coopab
New Member
- Joined
- Aug 26, 2009
- Messages
- 66
- Reaction score
- 0
- Points
- 0
- Location
- Central Massachusetts
- Vehicle Year
- 1999
- Make / Model
- Ford
- Engine Size
- 4.0 L
- Transmission
- Automatic
I've been stuck in 2WD long enough but researching possible/probable causes of no 4x4 is frustrating.
Edit: After further testing (and thinking) I've got more to report
I guess this points to a problem either with my transfer case or perhaps the hubs.
- I want to check fuses first but my owner's manual doesn't list anything mentioning 4wd
- various threads mention 1,2, or 3 fuses. What does my truck have?
- various threads place 4X4 control module behind passenger side kick panel
- Others mention under one of the jump seats in supercab
- Others seem to suggest it's in the dash behind the radio
- which one is my 1999 XLT?
- Possible vaccuum leak at the hub
- shift motor rebuild or replace
- dash mounted switch or push button (mine is the switch)
- High range lights but not Lo
- I can't hear any clicking but have poor hearing even with hearing aids
Edit: After further testing (and thinking) I've got more to report
- I jacked the truck up and placed it on four jackstands to test the 4WD system
- From 2WD to 4WD Hi I observed only one of the axles spinning (if memory serves me correctly it was driver's side)
- After using the proper (Neutral with foot on brake) procedure I shifted into 4WD Lo and the light came on and there was a clunking sound
but neither front axle was turning. In fact the rear wheels were also stationary.
- Taking the truck down off the jackstands I took it for a spin in a cemetery across the street from where I live and tested the shifts between 2WD and 4WD Hi and Lo. The appropriate lights came on and there seems to be something happening but I cannot say that if felt like the 4WD was ever engaged.
- In 2WD the truck performed as normal.
I guess this points to a problem either with my transfer case or perhaps the hubs.
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