C4 Transmission issue

Bill Harris · 09-24-2019, 12:10 PM

There are a few things that affect the flare including which valve body you have (who modified it to full-manual) and which intermediate band servo you are using. There a quite a few different servos that have various apply and release piston areas and accumulator volumes which affect the timing of the band release. The adjustment on the band has a little effect, but it is a fine tuning compared to the hydraulic circuit variables. You should never have a flare on the 1-2. Second gear is the intermediate band applying to stop the direct clutch drum. You might get a slow or sloppy second gear shift, but unless the forward clutch is slipping it shouldn't ever flare.

09-24-2019, 12:10 PM	#3
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: C4 Transmission issue There are a few things that affect the flare including which valve body you have (who modified it to full-manual) and which intermediate band servo you are using. There a quite a few different servos that have various apply and release piston areas and accumulator volumes which affect the timing of the band release. The adjustment on the band has a little effect, but it is a fine tuning compared to the hydraulic circuit variables. You should never have a flare on the 1-2. Second gear is the intermediate band applying to stop the direct clutch drum. You might get a slow or sloppy second gear shift, but unless the forward clutch is slipping it shouldn't ever flare. __________________ Bill Harris ex 2172 STK ex 2272 S/S