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47re 1st to 2nd hunting

8301 Views 13 Replies 3 Participants Last post by  JoeCanuck
Kind of an odd problem here. Truck has 68k on it, I put a trans go in 1500 miles ago, tightened the front band to spec and it shifted nice and firm thru all the gears.

Over the past two days tho, it started hunting between 1st and 2nd at very light throttle. At normal throttle, it shifts 2nd nice and firm, then 3rd, and 4th. It will hold at WOT with the Edge Juice on 5, no slipping, slidding, or hunting. The problem is just at very light throttle with 1st to 2nd gear. When it starts to hunt, I can step on it a bit harder and it will either stay in 1st a bit longer then shift firm into 2nd, or push right into second depending on speed.

I'm thinking its a speed or pressure sensor problem. When we did the VB we cleaned up all the sensors but did not replace them.

Thoughts? I would like to fix this before the cold sets in. I've read there are updated pressure sensors??

BTW, the truck is a 99 4wd.

Thanks guys
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My truck is doing the same thing; occasionally hunting between 1 & 2 at light throttle and stacking higher gears...after installing the transgo kit.

All was well for a while then this started.

It's good to see a possible solution. I was going to play with the TV cable but I'll probably just replace the transducer and solenoid.
Sounds like a plan. Thanks.
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