disgruntled ford own

I have a 2007 F150, tranny started acting up, found that the transmission oil had leaked into the transfer case, was told I had to have a transmission flush so they could see if it was leaking, didnt need to do that it was a ploy for the dealership to make more money as they knew before they told I must do a tranny flush for dignoistic, I ended up paying the deductable, the parts & labor under a ford warranty that was still on truck, truck still under warranty srill leaking oil in transfer case, just had to have it repaired again, twice within the warranty. then ford does not want to pay anything they know there is a problem but will not really fix it, i think ford just puts non stick bandages on things charges you a arm & a leg to do so & hopes the warranty will run out soon so they can rip u off on a major repair for the same thing they put a non stick bandages on

Cherie13

Just Had my 08 in for oil change -was told that there's a leak between transmision and transfer case - says he sees all the time - I've got 158000 km on mine taking in to mechanic this week will post cost to fix

Mr.Philadelphia

Resurrecting an old thread here because I had the same issue and just rebuilt the transmission (4R75W) on my truck. There is no seal on the back of the tranny that can be serviced by merely dropping the transfer case. There are two steel sealing rings that keep the pressurized fluid lubricating between the output shaft & the rear bushing from escaping in to the extension housing. These sealing rings can be replaced only after disassembling the entire transmission -- the output shaft/ring gear assembly is the last thing that comes out of the barrel of the transmission case.

I had an overfilled TC and suspect that this was either done at the factory or happened when the previous owner had the transmission flushed. My advice would be to monitor the tranny fluid levels and leave it alone. However, if your TC fluid is low and neither the front nor rear output seals are leaking, then you need to drop the TC and replace the input seal. But there's no way that a bad TC input seal would suck fluid from the transmission.

Aeromech

Once again, this old thread is being brought back to life.

Today I desided to change my transfer case oil. When I pulled the fill plug fluid gushed out into the drain pan. Maybe a quart. Didn't look right to me. I completed the fluid change and added back about 2 qts. Then came in and found this thread and that there can be an issue with fluid transferring to the TC from the tranny.

Here's my question. I have had no issues at all with my transmission or 4WD system. it's been doing great. My transmission has new fluid 7K miles ago along with a pan cleaning and new filter. Should I be concerned? I can start checking the tranny fluid level more often I guess but so far everything seems cool.

Layton98

Hello everybody. I just joined this forum and ran across this thread at just the right time. So I am in the process of replacing my flexplate and when I pulled my transfer case apart from the transmission it gushed out tranny fluid. I didn't think anything about it at the time but now reading this that doesn't seem normal. Is this because that seal is leaking transmission fluid into the transfer case? When I drained the transfer case it filled a 2 liter bottle which seemed like a little much to me. So is the seal bad and what seal is it that needs to be replaced? Thanks in advance!

bastage

To The Top once again...

I too have this happening.. I have a buddy who is a mechanic who basically said "meh, we'll fix it when it warms up a bit". Basically said its a seal on the front of the transfer case that we need to change, but not to worry about it until then as long as the transmission still has fluid & that I dont run in 4wd for an extended period of time.

Does this all sound right to those who know these things better then I do?

Greg Smith

Did your 4x4 stop working at all

bastage

No.. but the rest of the truck did..

KJonesy33

What’s that mean, your tranny blew? I have the same issue and would like to not total my truck or know if I’m at risk for doing so but this vague comment leaves me with that worry. Sorry to hear this happened to yours

needsmoarturbo

your tranny will not blow from this.. as long as you make sure the trans has fluid up to the proper level though. eventually it reaches an equillibrium point where no more fluid goes into the transfer case, then the level in the trans will stop dropping.
The transfer case in my opinion you probably arent going to "blow up", but it might be more likely to leak and its going to be more likely to whip the fluid up inside it, so its not great for lubrication long term.

I noticed I had this problem last fall and I chose to pull the transfer case and replace that front seal. It was a pain in the butt mostly because the top bolts are so hard to reach, but hopefully I won't have this problem again.