4405 & 5R55E issues

[Blee1099]

Alright.. Some of you know that my transfer case and my transmission started acting up this past weekend. Let me give you a run down on the symptoms.

After approximately an hour or so of driving, my RPMS were atleast 1000 above what they should be. From a stop, I had no movement in D or R but it 2nd and 1st. I checked the fluid and it was low so I topped it off. After running it thru the gears, there was no change until I put my foot on the ground and pushed toward the direction I wanted to go. Which subsequently caused my O/D light to flash but it went in gear none the less. I plan on doing a manual flush on the transmission and filter change hoping that will be the cause since the fluid has over 60K miles on it (whoops) and was never flushed since I had it at 40K miles.

The transfer case is also having issues. In 4WD on the skinny pedal, you can hear the transfer case clanking. I suspect the chain on the transfer case is stretched a bit.

Does anyone think the lack of Drive & Reverse and the transfer case could be related? I'm wondering since I can push the truck and it'll go in gear.

Also should I do a flush first and then change the tranny filter or vice versa?

 

[Blee1099]

Flushed the fluid, changed the filter and replaced the EPC solenoid and its much better.. Incidentally, this is not what the fluid should look like

 

[toy720]

sounds like you fixed your problem didnt glacier tell you the epc was probably the culprit if he did (you nailed it again glacier) and yes that fluid is a little to dark does the transfer case still clank?

 

[Glacier991]

I'm thinking your correct in that the engagement issue is probably transfer case related.

 

[Blee1099]

I'm still having the issue. Then again after driving for 30 minutes I notice the fluid was low so I topped it off. I'm gonna double check the fluid again to see if it dropped. If so, I suspect I'm loosing fluid from a seal somewhere.

 

[Glacier991]

It could also just be that after you filled it, all the circuits and TC had not yet been filled. Do not automatically assume a leak, just yet. bring it back up and then if it does it AGAIN, THEN suspect a leak.

 

[Blee1099]

Yeah I'm gonna let it sit for the night since the garage is currently filled up with my sister vehicle. I'll work on it again in the morning. I suspect that it wasn't low, that it just didn't go thru the areas of the tranny. I placed a piece of white cardboard on the floor under the tranny & transfer case in case it is leaking so I know since there are so many stains in the driveway to begin with.