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The comprehensive Go-Go Transmission Solenoid Thread
Hey guys, so I want to know everything that has or hasn't been mentioned about the Go-Go solenoid. I called up Innovative, they say it "works pretty good" and seemed to recommend it. Called up Suncoast (they used to have their own version of the ported solenoid) and the owner said it worked pretty good, but they found that with aftermarket trans tuning, it led to failures of the solenoid.
I've also read that the Go-Go solenoid make the shifts brutally harsh. Right now I have IDP tunes, running the "firm shift delay lock" and I'll tell you, the trans shifts beautifully except for the 2-3 shifts. I have a stumble that feels like a double shift into 3rd. Talking to Mark Kovalsky (who was a Ford engineer and helped design the 5R110), he said that the 5R110 is a unique trans because the 2-3 shift is unlike any of the others in that a downshift occurs at the same time that an upshift occurs, and that a stumble like the one I'm experiencing is either a weak solenoid, or the trans tuning is off. Since I haven't heard of anyone else running Innovative tunes having this issue, I'm going to assume that it's a solenoid issue. FWIW, I pulled the pan to replace the filter and I didn't see anything at all on the filter, and not much on the magnet (certainly no large clutch materal particles).
So let me know why you installed the solenoid, and did it fix your issue?