Transfercase mystery leak (WITH VID) experienced eyes needed
10-27-2017, 04:25 PM
#1
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Year: 2000
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Transfercase mystery leak (WITH VID) experienced eyes needed
Hey guys,
I've had a mild t-case leak since changing out the fluid...could have even been before that. I have a 2000 XJ with a NP242 (not in the states).
I noticed it after doing a fluid change recently, initially i got a fair amount of Dex III dripping off the t-case bash plate and some off the crossmember too, read a few write ups and started with the simple stuff, changing the O ring in the shifter linkage and plugged the hole beneath it (check vid).
The leak seems to be coming from the front driveshaft side of the case, the back is clean, as shown in the vid...The biggest conundrum about this leak is that there is fluid all over the body (underside of the vehicle that surrounds the t-case ). I'm really baffled on how its got there.
Ive tried cleaning the tcase and body area that is effected, but there is just so much gunk, its near impossible. The leak seems to be coming from up top, but its untraceable. My other theory is that its a seal leak in the front driveshaft and the spinning yoke is flinging fluid everywhere, making it impossible to tell where the leak is from.
- Another thing to mention is that I have an AC leak and I've heard if your evaporator is leaking, it often drips along the frame rail, could it be that? it does show up vividly under a fluorescent light!
Im proper stumped any advice will be welcomed... SEE VIDEO LINK BELOW And BTW the front driveshaft is removed incase you're confused on the angle
I've had a mild t-case leak since changing out the fluid...could have even been before that. I have a 2000 XJ with a NP242 (not in the states).
I noticed it after doing a fluid change recently, initially i got a fair amount of Dex III dripping off the t-case bash plate and some off the crossmember too, read a few write ups and started with the simple stuff, changing the O ring in the shifter linkage and plugged the hole beneath it (check vid).
The leak seems to be coming from the front driveshaft side of the case, the back is clean, as shown in the vid...The biggest conundrum about this leak is that there is fluid all over the body (underside of the vehicle that surrounds the t-case ). I'm really baffled on how its got there.
Ive tried cleaning the tcase and body area that is effected, but there is just so much gunk, its near impossible. The leak seems to be coming from up top, but its untraceable. My other theory is that its a seal leak in the front driveshaft and the spinning yoke is flinging fluid everywhere, making it impossible to tell where the leak is from.
- Another thing to mention is that I have an AC leak and I've heard if your evaporator is leaking, it often drips along the frame rail, could it be that? it does show up vividly under a fluorescent light!
Im proper stumped any advice will be welcomed... SEE VIDEO LINK BELOW And BTW the front driveshaft is removed incase you're confused on the angle
10-27-2017, 06:29 PM
#2
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Year: 97
Model: Cherokee
Engine: 4.0
Hey guys,
I've had a mild t-case leak since changing out the fluid...could have even been before that. I have a 2000 XJ with a NP242 (not in the states).
I noticed it after doing a fluid change recently, initially i got a fair amount of Dex III dripping off the t-case bash plate and some off the crossmember too, read a few write ups and started with the simple stuff, changing the O ring in the shifter linkage and plugged the hole beneath it (check vid).
The leak seems to be coming from the front driveshaft side of the case, the back is clean, as shown in the vid...The biggest conundrum about this leak is that there is fluid all over the body (underside of the vehicle that surrounds the t-case ). I'm really baffled on how its got there.
Ive tried cleaning the tcase and body area that is effected, but there is just so much gunk, its near impossible. The leak seems to be coming from up top, but its untraceable. My other theory is that its a seal leak in the front driveshaft and the spinning yoke is flinging fluid everywhere, making it impossible to tell where the leak is from.
- Another thing to mention is that I have an AC leak and I've heard if your evaporator is leaking, it often drips along the frame rail, could it be that? it does show up vividly under a fluorescent light!
Im proper stumped any advice will be welcomed... SEE VIDEO LINK BELOW And BTW the front driveshaft is removed incase you're confused on the angle
https://youtu.be/Xc91RkdAXNs
I've had a mild t-case leak since changing out the fluid...could have even been before that. I have a 2000 XJ with a NP242 (not in the states).
I noticed it after doing a fluid change recently, initially i got a fair amount of Dex III dripping off the t-case bash plate and some off the crossmember too, read a few write ups and started with the simple stuff, changing the O ring in the shifter linkage and plugged the hole beneath it (check vid).
The leak seems to be coming from the front driveshaft side of the case, the back is clean, as shown in the vid...The biggest conundrum about this leak is that there is fluid all over the body (underside of the vehicle that surrounds the t-case ). I'm really baffled on how its got there.
Ive tried cleaning the tcase and body area that is effected, but there is just so much gunk, its near impossible. The leak seems to be coming from up top, but its untraceable. My other theory is that its a seal leak in the front driveshaft and the spinning yoke is flinging fluid everywhere, making it impossible to tell where the leak is from.
- Another thing to mention is that I have an AC leak and I've heard if your evaporator is leaking, it often drips along the frame rail, could it be that? it does show up vividly under a fluorescent light!
Im proper stumped any advice will be welcomed... SEE VIDEO LINK BELOW And BTW the front driveshaft is removed incase you're confused on the angle
https://youtu.be/Xc91RkdAXNs
I think your source is further forward... Check your trans cooling lines well.
Last edited by Bugout4x4; 10-27-2017 at 06:32 PM.
10-27-2017, 11:52 PM
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Hey, thanks for the reply.
I should have filmed further back, but it’s really tight back there.
The front of the trans and bellhousing is dry, and there is a visable pink fluid drip from the shifter linkage of the tcase, plus the tcase fluid has dropped by about 200milliliters in the last 3 months so relatively sure it’s coming from the tcase...will check the trans lines, although I think they’re on the other side if I’m not mistaken?
I should have filmed further back, but it’s really tight back there.
The front of the trans and bellhousing is dry, and there is a visable pink fluid drip from the shifter linkage of the tcase, plus the tcase fluid has dropped by about 200milliliters in the last 3 months so relatively sure it’s coming from the tcase...will check the trans lines, although I think they’re on the other side if I’m not mistaken?
10-28-2017, 06:39 AM
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Go to self serve car wash and hit it with pressure washer should clean up nicely . It does look like yoke is the source though.
10-28-2017, 09:25 AM
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Hey, thanks for the reply.
I should have filmed further back, but it’s really tight back there.
The front of the trans and bellhousing is dry, and there is a visable pink fluid drip from the shifter linkage of the tcase, plus the tcase fluid has dropped by about 200milliliters in the last 3 months so relatively sure it’s coming from the tcase...will check the trans lines, although I think they’re on the other side if I’m not mistaken?
I should have filmed further back, but it’s really tight back there.
The front of the trans and bellhousing is dry, and there is a visable pink fluid drip from the shifter linkage of the tcase, plus the tcase fluid has dropped by about 200milliliters in the last 3 months so relatively sure it’s coming from the tcase...will check the trans lines, although I think they’re on the other side if I’m not mistaken?
10-28-2017, 10:37 AM
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Year: 2000
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I can imagine the wind blowing things around...my tranny mount in also wet, but could be dripping down from T-case. Could also be the rear transmission seal too??(not the pan, I’ve made sure of that)
The spot where it’s wet around the body is in such a “corner” I couldn’t imagine it coming from anything other than the transfer case. I’m 90% sure it’s spinning of the front driveshaft yoke..just was hoping for a confirmation from someone who’s had this happen to them.
@freedgr I’d love to get it pressure washed, but we’re currently in the midst of a severe drought here in Cape Town.
The spot where it’s wet around the body is in such a “corner” I couldn’t imagine it coming from anything other than the transfer case. I’m 90% sure it’s spinning of the front driveshaft yoke..just was hoping for a confirmation from someone who’s had this happen to them.
@freedgr I’d love to get it pressure washed, but we’re currently in the midst of a severe drought here in Cape Town.