Happy 4th! and i'm looking for a little input on a transmission issue

[jbiersba]

Hey all! Happy 4th!

Just hopped in the truck to head down to the boat..... got a mile from home and I have a wrench symbol, and a check engine light come on. Engine seems to be making a funny noise, and has little power. Maybe this is limp mode?

Transmission is not shifting normally, so I head back home.

I checked the transmission fluid level, and every time I pull the dipstick out its covered in a rusty brown grime. I can't tell if it's metallic, or something else. Can't be good, anyone know what it could be?

The truck has 56K on it, and at 50K the transmission CPU died. That was a real pain, because when that happened, the truck wouldn't shift, or start because the CPU wasn't telling the engine CPU that it was in park

Since then I've felt the transmission acting a little funny from time to time. Hard shifts, and on a few occasions it shifts and doesn't seem to grab whatever gear it;s trying to shift into.

Could that grimy junk I'm getting out of the dipstick be some sort of clutch material?

If any of you aren't out enjoying the holiday and are reading this.... and have a clue what this could mean, please let me know. I'll try to get the truck to the dealer tomorrow, but sometimes it takes them a few days before they can get a look at it.

[jbiersba]

follow up to this issue.

a temp sensor on the transmission failed. as a result the transmission thought it was -44F and was not operating correctly.

things seems to be running well after replacing the sensor.

Still a little uneasy about the amount of rust on the transmission dipstick though...... Even if it's coming from the dip stick tube, some of that has to be falling down into the transmission pan, and i'm guessing it's not helping to keep the transmission fluid clean

[2006PSDSD]

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