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LOSIN TRANS FLUID NO VISIBLE LEAK

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Old 03-20-2011, 09:08 PM
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LOSIN TRANS FLUID NO VISIBLE LEAK

help i am losing atf oil fast i see no major leaks and no oil in radiator i do have a semi big leak coming out of the t-case front output shaft for the front axle does the t case share oil with the trans? if not where could my oil be going
 
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Old 03-20-2011, 10:51 PM
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Pull the vacuum line out of the back of the transmission and see if ATF comes out. If the diaphragm ruptures, the motor will suck in ATF and burn it.
 
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Old 03-20-2011, 11:04 PM
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The transmission and transfer DO NOT share oil. However, it sounds like that may be what you have going on. It sounds like the seal on the rear of the transmission is bad and allowing your trans oil to transfer into your transfer case. Id bet if you pull the fill plug on the transfer case, you will find it is overfull and diluted with transmission oil. That could be the cause of your leak on the front yoke as well. As the transfer case fills with transmission oil, it builds pressure that found its way out. In your case it sounds like it found its way out of the front yoke seal.................
 
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Old 03-20-2011, 11:22 PM
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Originally Posted by fmc400
Pull the vacuum line out of the back of the transmission and see if ATF comes out. If the diaphragm ruptures, the motor will suck in ATF and burn it.

I have this had this happen to me on a couple of occasions
 
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Old 03-21-2011, 08:07 AM
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From way back in the old memory bank, I believe a modulator can cause this also. Most likely the seals as mentioned,,,,assuming you don't have a divorced transfer case.
 
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