So I had the trans rebuilt in 2010. Replaced the solenoid shift pack in 2008 before the rebuild.

This morning after smashing the pedal for a little cold whether boosting my OD light started to flash. It still shifts fine goes into gear as quick as before OD works.

It does seem a little sluggish shifting but nothing out of the norm to much.
But I pulled the p1744. Is it possible it's the selonoid pack?

2001 4x4 expedition
4r100 with a punisher street Valve body 3000 stall TQ running 16 psi with a big centrifugal.build sheet below.
I will drop the pan tomorrow morning and see if there's broken sh1/ in there.
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Well now I'm not quite sure what to make of this. I expected to see a lot more in the pan!

It looks damn good in there. Last trans had shavings and chunks of gear in the pan. Fluid is good looking seeing how its never been changed sense the rebuild.

Wtf?? I guess I'll be pulling the Valve body and shift pack. I can't find any Definitive answers as to how to go about load testing the solenoid as well as checking continuity?

The valve body I guess I'll be using snap ring pliers to pull the pistons out and check for Foreign debris or worn pistons seals etc.

I've checked the harness on the shift pack and TRS. I will check the Incan fuses next. Already used my fluke on the power distribution box under hood. did not find any that were blown.

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I finally found the info needed for the resistance test on both the shift pack and its harness o PCM.

If it comes back high or low ohms ill replace it. If not i guess I'll tackle the rebuild my self. Using atsg book it should be a lot easier.




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