TC Grinding on Lockup
07-12-2006, 08:01 AM
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TC Grinding on Lockup Have a Fuddle 4200, and could not be happier with it. Something it has done though, seemingly always, is make a "grinding" noise on lockup. I hardly ever notice it due to the sound of the car, but can I fix this through programming? Is it just line pressure or something related to that? I have HPTuners. Thanks.
07-12-2006, 09:14 AM
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Start with setting the TCC minimum duty cycle to 98%.
A harder-grabbing clutch sometimes does not apply so
smoothly at light apply pressures like with the factory
PWM "feathering" at lighter pedal.
A harder-grabbing clutch sometimes does not apply so
smoothly at light apply pressures like with the factory
PWM "feathering" at lighter pedal.
07-13-2006, 10:17 PM
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Line pressure should be adjusted too my 4k was doing the same thing. We upped the pressure and it locks without the grunt and got back some firmness in the shifts.
