[ToMang07]

Originally Posted by wood4heat

So I crawled under the truck yesterday evening and spent 20 min wiping away road grime but didn't find a tag or any identifier left by whoever rebuilt the trans. I also looked for the PCM code and had no luck there either. It was a long day and I didn't have the energy to pull the pcm.

I don't need the code to order a chip do I?

Also since my 1-2 and 2-3 shifts are solid would it be possible or even recommended to leave them alone and firm up the 3-4 shift with the chip?

At this point I'm wondering if I should just leave the trans tuning alone and do a valve body later. At least then I would know what I had.

Yes, you do need the code. All you need to pull the PCM is a 7mm and a 10mm socket. Remove the 10mm harness from behind the fire-wall, (under the master cylinder) then remove the 2-7m bolts holding the black box that secures the PCM.

Turn it to the right and remove.... reverse to re-install.

The Code should be on the plastic cover where the chip will go, and on the end of the PCM that plugs into the harness.

And from my experiance... DO NOT use the black box to re-mount the PCM... mine was turning the chip causing random shut-offs and no-start. Removed the box.... no more problems.