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That does not look good at all, the black is burnt fluid and clutch material
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that’s the worst I’ve ever seen…..rebuild time.Ok, got the pan off. A member here confirmed I did need to take off the crossmember as did the TM when I checked that. The TM said remove the drain plug too though (there is not one [maybe 3L80?]). Supporting the transfer case with the floor jack.
Only metal dust on the magnet. Not seeing anything worrisome other than the fluid color and dirty filter, however I do not have much experience here.
What do you guys think? I have already ordered a new filter.
That does not look good at all, the black is burnt fluid and clutch material
So not even worth refilling with new fluid and a filter in the off chance it was a plugged filter and just poorly maintained?Retiredwarhorses said:that’s the worst I’ve ever seen…..rebuild time.
that black stuff is clutch plate and overheated transmission fluid…you can’t bring a transmission back from that.So not even worth refilling with new fluid and a filter in the off chance it was a plugged filter and just poorly maintained?
You can have the best kit on the market, it’s the guy doing the work that makes all the difference, that and knowing how to apply the various upgrades and fixes to the transmission while it’s apart, that’s why I send all my transmissions out to a company here locallyAny recommendations on rebuild kits? Something with a great warranty and can handle diesel torque and heavy weight that will last.
No it is toast, any decent transmission shop can build that transmission, there are literally millions of them on the road.So not even worth refilling with new fluid and a filter in the off chance it was a plugged filter and just poorly maintained?
I get the odometer may be wrong, but it has 12k miles and little over 800 hours on the tach. Mostly hard ass military miles with armor I suppose.It common enough for any transmission to fail especially with a 19 year old at the wheel.
I did get $50 (policy limit) reimbursed from the insurance company for the tow. Helps.Might consider getting AAA+ towing. Will tow 100 miles or 200 miles depending on what level you buy. I do believe that towing to the shop would be covered.
Are you waiting on something before you just spend a few extra bucks and replace the TPS?Update: I picked up the Humvee at the shop yesterday with the rebuilt transmission. The drive clutches were blown of course. Some parts were upgraded from stock. The guy said it was running good but was shifting late, said would be ok to drive home, but that I needed to get the TPS issue resolved. [He did not want to venture into unfamiliar waters doing that work].
I drive it home, the gym, and the parts store to pick up some electrical contact cleaner and it is shifting well (about 10 miles total). When I get home I sprayed the TPS connector really well with the cleaner to re-test it. I also disconnected the batteries to clear any codes. Now I get the 5V reference! I didnt have alligator clips or my wife home to press the throttle while I tested the variable voltage wire for the TPS. I decided to plug the connector back in (since I had to do that anyway to test the variable voltage) and test drive around the neighborhood. It shifted like complete shit and went into limp mode.
This morning I jumped the J2 and put it into diagnostic mode. It just does cycles of 12, which is normal. Tried to drive again and was out of limp mode but really late hard shifts, noisy/squeaking shifts, etc. Shit basically, and I am very afraid to damage the transmission I just paid to be rebuilt. At this point I am thinking the TPS sensor is trash and maybe the TCM does better with no signal than a complete garbage signal. It isn't perfect and I have some anxiety pushing it up hills hard, but it is shifting much like it did when I picked it up from the shop (where sensor wire was unplugged). That was a relief. Picked one of my kids up from school in this setup and performed ok.
So I am quite sure the TPS is bad. Does anyone still think my TCM is bad? Seems like wiring is good now since getting proper 5V reference after cleaning it well.
To go back, it had these crap shifts and funny noises when I got it from the government. I am sure the TPS was bad when I got it. Did I burn up the clutches operating it with a faulty TPS or were the clutches probably already going bad and destined to get steadily worse? The fluid always had a clutch burn/brake pad type smell, but used to be a decent red on the dipstick, not the black it became later.
The harness connections are OEM like all GM connectors for the transmission, A tech with proper tools can connect inline and perform diagnostics both ways while in monitor mode or control the transmission altogether.I just ordered a new TPS.
Are you referencing the Tech 2 scan tool? Where does it plug in? (unlikely to have a J1?)
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