Tranny Issues

[88Racing]

First
How's the fluid look?
How's the fluid smell?
When is the last time the tranny fluid and filter have been changed?
I will let Bill know this problem exists with your truck.

Lars

[dnkrm]

Originally Posted by 88Racing

First
How's the fluid look?
How's the fluid smell?
When is the last time the tranny fluid and filter have been changed?
I will let Bill know this problem exists with your truck.

Lars

Hey, the fluid looks and smells fine, I compared it to my wifes car to be sure and as far as I could tell they looked and smelled the same. The level was high but the truck was not completely cool. With only 40K I doubt the fluid or filter have been changed, I have not done it but I bought it with 33K. Thanks for the help Lars, my truck was almost identical to yours when I bought it in February, just a little different now! later

[Jackpine]

Ugh - I don't even have an opinion, which is strange for me.

I can't believe the original owner beat the transmission up ant it took 7K for you to see it.The fact that at least some of the symptoms go away at stock seem to point in part to the Gryphon.

Hope Bill comes on with an answer and that it's a simple fix!

- Jack

[88Racing]

Between 10K-20K I did some car transporting but since the auto slump I haven't done any real pulling for the last 7K. But at 20K my tranny had a complete flush, drain and new fluid and filter done to it. If I am pulling a lot every 20k I do that and I do see some improvements in shifting. But with the problem I have everything goes away when put back to stock. Bill has advised me not to reflash. Your symptoms will have to be addressed by Bill I think. Yes my hex is a TEJ one but yours looks like a newer version, mine looks more 1st gen for the 06 year.

Lars

Btw what gears and what size tires?

[Jackpine]

Ah, the famous TEJ hex code again, I completely overlooked that in the original post! Since the components in the transmissions don't change (at least not much), in a model year, I wonder why there is a need for all the various "strategies"? It simply doesn't make any sense to me.

- Jack

[Sburn]

Originally Posted by JackandJanet

Since the components in the transmissions don't change (at least not much), in a model year, I wonder why there is a need for all the various "strategies"? It simply doesn't make any sense to me.

- Jack

I suspect all the different calibrations are related to all the possible engine/transmission/driveline choices: 2WD/4WD, 4.6/5.4, Flex Fuel/non-Flex, 49-state/50-state. So with just those options, the matrix is 4^2, or 16 possible combinations just in one model year. Only my guess....

[Jackpine]

Originally Posted by Sburn

I suspect all the different calibrations are related to all the possible engine/transmission/driveline choices: 2WD/4WD, 4.6/5.4, Flex Fuel/non-Flex, 49-state/50-state. So with just those options, the matrix is 4^2, or 16 possible combinations just in one model year. Only my guess....

Dang, Sburn! You're trying to put me out of mathematician business here, aren't you? :sadface:

I wonder though, how much difference flex/non-flex fuel is, and, 49/50 state differences seem like they should be minimal too.

However, I suspect you're dead right on this!

- Jack

[88Racing]

Originally Posted by Sburn

I suspect all the different calibrations are related to all the possible engine/transmission/driveline choices: 2WD/4WD, 4.6/5.4, Flex Fuel/non-Flex, 49-state/50-state. So with just those options, the matrix is 4^2, or 16 possible combinations just in one model year. Only my guess....

Could possibly be more than that by the time you take into effect all model aspects.
Like 6^4
Lol's

Lars

[dnkrm]

Originally Posted by 88Racing

Between 10K-20K I did some car transporting but since the auto slump I haven't done any real pulling for the last 7K. But at 20K my tranny had a complete flush, drain and new fluid and filter done to it. If I am pulling a lot every 20k I do that and I do see some improvements in shifting. But with the problem I have everything goes away when put back to stock. Bill has advised me not to reflash. Your symptoms will have to be addressed by Bill I think. Yes my hex is a TEJ one but yours looks like a newer version, mine looks more 1st gen for the 06 year.

Lars

Btw what gears and what size tires?

Hey, it has 3.73 gears and 33" tires. I plan to take another short drive tonight to see if it is still the same, would it make any sense to unhook the battery to reset the computer? Also, I reviewed the recommended interval for trans fluid change and there is a huge difference between severe duty, every 30K, versus regular duty which is 150K. That seems like quite a difference. Thanks

[Jackpine]

Originally Posted by dnkrm

Hey, it has 3.73 gears and 33" tires. I plan to take another short drive tonight to see if it is still the same, would it make any sense to unhook the battery to reset the computer? Also, I reviewed the recommended interval for trans fluid change and there is a huge difference between severe duty, every 30K, versus regular duty which is 150K. That seems like quite a difference. Thanks

The difference is enormous, isn't it? Modern automatics seem to last forever if they're not mistreated, but heavy workouts do not seem to be kind to them.

You COULD try unhooking the battery, but that process deals more with fuel trims than TC behavior I think. And, your truck DOES continue to "learn" as conditions change. It just happens fairly slowly.

- Jack