Please hang tight with me. I have been having hard shifting from 1st-2nd when cold. Rpms up to 2000 and let off then goes into 2nd. After that, she shifts fine and shifts well until next morning when she sits overnight. I have read and read and researched this issue with no 100% returns for help. Build tag is August 09, 2001, so no old mechanical diode? Took a sample of fluid and it is dark red (pic attached) and smells like hydraulic fluid...I don't think it smells burned. Looking for some kind of answers. Does it sound like the calve body 1-2 shift or solenoid pack or needing rebuild?

 

If that fluid were in my tranny, I would be changing it immediately.

 

Get that transmission serviced...

The damage might already be done... maintenance is the key to longevity.

Any CEL or blinking OD light?

 

Yeah, my fear is the same. Took it last evening to a tranny shop for scan and whatever else they come up with. No CELs and no blinking of light. Waiting on the bed news anytime now. I wish I was more comfortable with transmissions so I could do more of the repairs myself. They are so finicky.