Hard 2nd to 3rd shift
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Sticking valves, broken springs, etc... could absolutely cause harsh or delayed shifts.
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Senior User
Joined: May 2015
Posts: 282
Likes: 3
From: Sonora,Ca
Changing the solenoid pack won't really change anything. The shift-firmness is controlled by the valving inside the transmission, and the pressure control solenoid. If the EPC solenoid were faulty, all shifts would be harsh.
If you have no codes, your speedometer works fine, I'd suspect internal modifications were done to the transmission. I suppose it could be a faulty TPS, but I'd imagine that would once again affect all gears, not just the -23.
If you have no codes, your speedometer works fine, I'd suspect internal modifications were done to the transmission. I suppose it could be a faulty TPS, but I'd imagine that would once again affect all gears, not just the -23.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Possibly. These transmissions aren't adaptive though. They have normal shift mode, and limp mode.
I suppose it's possible your computer may be faulty and acting up on the 2-3 shift for whatever reason, though.
I suppose it's possible your computer may be faulty and acting up on the 2-3 shift for whatever reason, though.
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