MrGoldman
New member
- 16
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- Location
- Denver, Co
Hi everyone,
I am in the process of un hack jobbing my 1998 LMTV, previous owner did some questionable things, I've already replace the motor due to a cracked block.
I had the driveshafts balanced and then did a test drive, transmission felt great - smooth shifts and no issues over 50 or so miles.
The next day I went on about a 120 mile highway and city trip, about 60 mi in I got a transmission temp light and wasnt able to pull over right away but when I did it shut off. Fluid level looked good (maybe a bit high) right before and during this entire trip, it was 95F outside. Engine temp crept near 195 for a bit but never over that.
Once I got to my destination, I noticed the transfer case was smoking and leaking a bit out of the case seal, thermal gun showed the transfer case was 325F, Let it cool for an hour or so and then started the drive home, took back roads and checked the t-case a few times, always around 220f.
I was 20 miles from home and it came up with a trans temp light and went into "6" on the controller, 100 yards later It lost all forward motion and gears. I re-started the truck and would have gears for 10ft or so but very weak.
Had it towed and drained all trans fluids as well as the t-case, nothing came out to indicate a C6 needle bearing failure (diagnosed by the LMTV facebook group), Filters look fine, scavenge line is clear and scavenge pump looks fine. Fluid smells terrible. Got about 7gallons out total.
What else should I check before putting new filters and fluids in and trying to drive it again? I didnt pull codes before pulling fluid out but can once I re-start it.
I am in the process of un hack jobbing my 1998 LMTV, previous owner did some questionable things, I've already replace the motor due to a cracked block.
I had the driveshafts balanced and then did a test drive, transmission felt great - smooth shifts and no issues over 50 or so miles.
The next day I went on about a 120 mile highway and city trip, about 60 mi in I got a transmission temp light and wasnt able to pull over right away but when I did it shut off. Fluid level looked good (maybe a bit high) right before and during this entire trip, it was 95F outside. Engine temp crept near 195 for a bit but never over that.
Once I got to my destination, I noticed the transfer case was smoking and leaking a bit out of the case seal, thermal gun showed the transfer case was 325F, Let it cool for an hour or so and then started the drive home, took back roads and checked the t-case a few times, always around 220f.
I was 20 miles from home and it came up with a trans temp light and went into "6" on the controller, 100 yards later It lost all forward motion and gears. I re-started the truck and would have gears for 10ft or so but very weak.
Had it towed and drained all trans fluids as well as the t-case, nothing came out to indicate a C6 needle bearing failure (diagnosed by the LMTV facebook group), Filters look fine, scavenge line is clear and scavenge pump looks fine. Fluid smells terrible. Got about 7gallons out total.
What else should I check before putting new filters and fluids in and trying to drive it again? I didnt pull codes before pulling fluid out but can once I re-start it.
