hey all, I POSTED IN THE WRONG AREA. i have a 98 4x4 AUTO THAT IS JUMPING BACK AND FORTH BETWEEN OD AND THIRD AT ABOUT 45MPH AND 3RD AND 2ND AT ABOUT 35 WITH OD TURNED OFF IJUST HAD A FLUSH AND HAVE NEVER ADJUSTED THE BANDS IS THE TRANY A BIG DOOR STOP OR CAN I DO SOMETHING WITH IT

 

You might try a noise filter in the TPS Line, How many miles are on your current tranny?

 

Like Lucas said try a DTT Noise filter cause it might not be jumping gears its just the Torque Converter Locking and Unlocking.

 

make sure all grounds are clean and tight.
how old are the batteries?

this is a very commom problem that can often be a simple fix. the DTT noise filter does wonders too.

check the easy stuff first, grounds and batteries!

 

If you are getting shifts from 3rd the 2nd it's probably more than a noise issue. Most likely, when they flushed the trans, they did it in. It's probably loaded the VB with tons of crap.

Sounds more like a gov solenoid issue to me, but if it's only TC cycling, the DTT noise filter will fix it.

Obviously, you need to be sure the batteries are in good shape, clean all the grounds.

Dave

 

Ive seen a lot of people think there transmission was downshifting when it was only the TC locking.

 

Mine does the same thing locks and unlocks the converterI will check the grounds.

 

I have 148k on the trany this started a couple of days before iI had it flushed. where can I get this noise filter. thanks much

 

DTT Noise filter: Diesel Transmission Technology - DTT Performance Diesel Transmission and Power Accessories

Need to call them to order it.

 

I can have one too ya in about 2 days!