92 150 Transfer case issue. HELP
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92 150 Transfer case issue. HELP
I have a 92 F150 4X4 AT 5.0 with 145k miles only owner. My truck will occasionally not move in reverse. It has don't this a few times. Once in my garage I could here the transmission engage but the truck won't move. I increases rpm and the truck finally clunked and then rolled out of the garage like normal. The same thing happened at work 20 miles later. I pulled it in the shop at work, jacked up the rear end, chocked the truck and the put it in reverse and the transmission engaged and the rear tire rolled. I shut it off crawled underneath the spun the rear drive shaft by hand. After a few rotations again the truck jammed in Reverse. I checked the rear break drums, they were fine. The location of the jam seemed to be in the rear of the transfer case. I lowered the the truck and tried again and the truck backed out fine only to jam again 20 ft later. I tried engaging the ESOF and that didn't help. The 4H light came on but the truck was still jammed. Eventually it again worked. When I tried to engage 4H the ESOF light didn't come on. I think there is something wrong with the transfer case. That is where it is making noise. I recently installed a new MLPS thinking that might be the problem but it was no help. Any ideas anyone? Shift motor??? Please help
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I have a 92 F150 4X4 AT 5.0 with 145k miles only owner. My truck will occasionally not move in reverse. It has don't this a few times. Once in my garage I could here the transmission engage but the truck won't move. I increases rpm and the truck finally clunked and then rolled out of the garage like normal. The same thing happened at work 20 miles later. I pulled it in the shop at work, jacked up the rear end, chocked the truck and the put it in reverse and the transmission engaged and the rear tire rolled. I shut it off crawled underneath the spun the rear drive shaft by hand. After a few rotations again the truck jammed in Reverse. I checked the rear break drums, they were fine. The location of the jam seemed to be in the rear of the transfer case. I lowered the the truck and tried again and the truck backed out fine only to jam again 20 ft later. I tried engaging the ESOF and that didn't help. The 4H light came on but the truck was still jammed. Eventually it again worked. When I tried to engage 4H the ESOF light didn't come on. I think there is something wrong with the transfer case. That is where it is making noise. I recently installed a new MLPS thinking that might be the problem but it was no help. Any ideas anyone? Shift motor??? Please help
I would yank out the transfer case, see what happens when shifted into reverse (and other gears) with it removed: if normal operation, then problem ain't in transmission. At that point, tear apart or replace transfer case. It is not all that heavy or difficult to remove. impish
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