Rolled the Dice, Came Up Snakeyes (4f89 Fault) Trans Replacement

[ard]

Originally Posted by josiahg52

Think it was 182k miles?

First ATF change at 182k? Yep, lifetime fluid....

[crystalworks]

Originally Posted by ard

My issue with getting into transmissions has been tooling....


did I miss it? How many miles and what was prior maintenance on you tranny?

Be nice if the guys at worldwide could do the rebuild. Especially since you already have the beefed up VB. Shipping is the beeatch i guess.


thx for posting, SUPER helpful as these trannies are black boxes ...to us.

Originally Posted by josiahg52

Think it was 182k miles?

182k is our E61 that just got it's trans serviced, no VB rebuild, just seals and Liqui Moly fluid, though I have a suspicion the trans had been serviced before. It's been running great. *crosses fingers, knocks on wood, and throws salt over shoulder.* Though I guess it better be, put $4000+ in parts into it last year after we bought it.

We bought the E70 almost 3 years ago at 136000 miles. Current mileage is just a tick over 167000 miles. Should have changed fluids/filter then, but I didn't know anything about the ZF boxes at the time. Hah! I still don't really, but I'm working on it.

Yes, it would be great if they could rebuild it for me after pulling. But I think I read about a good ZF shop either here in SA or in Houston. If this keeps going south the E61 will have to shoulder the burden of moving the trans to the shop. Nice that it has rear air.

Originally Posted by ard

First ATF change at 182k? Yep, lifetime fluid....

No joke. HAH! But I did get it at 136k, so technically, the fault is on one of the PO's. Or at least that's what I'm going to tell myself.

[josiahg52]

I have over 161k, did a pan/filter change at 118k and topped off with fresh fluid. No issues yet. I read these threads thankful someone is doing the research but scared of what might come.

[smassey321]

Are the codes still the same? Sometimes forcing a fault like you did can net more data.

[crystalworks]

Originally Posted by smassey321

Are the codes still the same? Sometimes forcing a fault like you did can net more data.

Good point. Went out and checked. Still the same 4f89 for 3-4 ratio monitoring.

Going to take it for another today drive using 1-3 shifts to mix fluids some more. This is probably not doing anything but it makes me feel like I'm being productive. Tomorrow am going to drop the fluid and refill with another ~5L of Valvoline max life. Then out for another test drive.

Redline D4 comes in on Thursday so, barring some miracle that tomorrow's fill of Valvoline fixes everything, I'll do another drop and fill with the Redline and Lucas transfix on Friday. So by this weekend I should know just how expensive this either has been, or is going to be. *fingers crossed*

[crystalworks]

Update: might have borked something. Truck will no longer idle in forward or reverse gears. Just bogs down and shuts off. Feels very similar to letting the clutch out without giving gas in a manual car. This happened during a manual shifting short drive using gears 1-3. No issues for most of the drive until heading back home.

Scanned for codes. No codes in the ECU or the TCM (mechatronics). Nothing. Not even the 4f89 because I never used 4th gear. Going to check the mechatronics connection for debris or not being fully seated. I am not going to drop the pan just yet as I don't hear any funny noises from the trans. Hopefully I haven't let the genie escape the trans but we'll see.

Suggestions?

[ard]

In retrospect, I wonder if aggressive flushing/fluid changes with the old VB in place should have been done first. Get as much crap and old fluid out... Any chance something got picked up and is in the VB now?


Just thinking out loud...

[crystalworks]

Originally Posted by ard

In retrospect, I wonder if aggressive flushing/fluid changes with the old VB in place should have been done first. Get as much crap and old fluid out... Any chance something got picked up and is in the VB now?


Just thinking out loud...

Had almost that exact thought myself earlier. Maybe something is clogged/jammed preventing the converter clutches from doing their thing. Going to proceed with the Valvoline flush and see what happens.

I just keep reminding myself it was probably an e clutch bushing problem to begin with and that all this is a hail Mary anyway. Then I take a shot and I'm okay again.

At the very least, this is an interesting experiment.

[crystalworks]

Well, I'm throwing in the towel with this trans. At least as far as fluid changes goes. Did one last drain and fill. This time with Redline and a half bottle of Lucas trans fix. Threw the same 3-4 gear code and failsafe each time 4th gear was requested.

On the bright side, it must have coughed out whatever was clogged causing it to stall out the engine as that behavior has cleared.

Gave the wife all the options, sell as is for $2500, take to a shop and spend $4000 replacing the trans, or I do it myself for around $1000. She chose the last option so I will be buying a trans Jack soon. Going to park the truck until I get that and the replacement trans squared away. I wish she didn't love this truck so much. LoL

Just an update to the thread. Looks like the e clutch bushing is indeed shot as the valve body rebuilder warned me. Oh well, it was worth a shot.

[ard]

Originally Posted by crystalworks

Gave the wife all the options, sell as is for $2500, take to a shop and spend $4000 replacing the trans, or I do it myself for around $1000. She chose the last option .

Well duh.


Son, you need to do a better job crafting 'the options'......











But seriously- keep us posted.