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-   -   Parts found in pan on 4l60e, what are they? (pics) (

SAATR 08-12-2010 09:41 PM

Parts found in pan on 4l60e, what are they? (pics)
My 97 Suburban hasn't had OD since I've owned it (about 8 months) and just recently lost 1st. I had the "Shift Solenoid A CKT malfunction or stuck open" code in the PCM and after a little research figured it was the solenoid. I dropped the pan this evening and, lo and behold, there's parts in it! Just one part, specifically, a small plug or plunger that I've circled in the diagram below:

I don't remember which one it was, but I pushed the spring back in and stuffed the plug back in and it stayed (wasn't aware that there was supposed to be a clip... it wasn't in there). I replaced solenoid A and reassembled the tranny. Upon test driving, I found that my problem still persisted. It started out in 2nd, upshifted to 3rd, and only downshifted to first once when I punched it. My questions are as follows:

1. What is that part?

2. What does it do?

3. Is it related to the afore mentioned problem?

Any help would be greatly appreciated! Thanks guys.

AndersonRacing44 08-13-2010 01:37 AM

those are the piston retaining plugs or what you want to call them. yes when fluid pressure is lost or gained the piston moves causing it to shift a gear (that is in very laymans terms) you need those clips.

SAATR 08-13-2010 08:40 AM

Thanks! :) I thought it was something like that. What I was after, though, was what do these two valves specifically control on a 4l60e? And would they be related to my loss of 1st and 4th? I will be going to a local transmission supply and getting a few clips to install in the tranny. Only bad part is I have to drop the pan again :rolleyes: .

Crosley 08-13-2010 07:15 PM

Normally those clips in the positions circled , the clips are on the inside of the valve body. that would require the v-body to be dropped for proper installation

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