So what does it mean when it doesn't disengage? I had to push harder and
harder to make it disengage, and now I have to floor it and it will just
change gears, but OD stays on! Does this mean I will need a new OD? How
much will that cost me? I'm looking in my crystal ball, and I see a loss of
cash here. :-(
Later
Randy Fox wrote:
> Can someone explain, in layman's terms ( !! ) Overdrive? What, exactly,
> is
> it? How does it work? How does it improve gas mileage? Why does it sound
> as
> if my Dak is working harder when I turn it off?
>
> I had thought that Overdrive simply forced the tranny into a lower gear
> on
> demand to give you a boost (like downshifting manually on a grade or to
> get
> the torque neccessary to pass a BigRig quicky).
>
> Preacher (Performance-engineering-impaired)
> 99 5.2L CC 4x4 SLT
> http://fly.to/bastaards
>
> ------------------------------
>
> Over-drive is to an automatic tranny with 5th gear is to a manual
> tranny. Or another example would be 3.55 rear axle gears vs. 3.72 (or
> 3.92 gears). It comes on automatically when you reach a predetermined
> speed or are pressing lightly on the
> gas pedal (to help save gas and help the corporate average fuel economy
> the Chrysler).
> It improves gas mileage because the engine rpm drops about 800 rpms (I
> think) at freewy speed when over-drive is engaged. It can be disengaged
> manually by pressing the button
> on the end of the gear selector, or by depressing the brake pedal. If
> the torque converter clutch solonoid fails, the over-drive won't work at
> all, or it will stay locked all the time.
> This makes the engine stall, similar to trying to start off from a red
> light with your manual
> trans in 5th gear.
>
> Sorry, I can't comment on why your Dak makes any sounds at all when it's
> turned off.
>
> Your second paragraph is describing all the benefits of turning off the
> overdrive.
>
> Randy
> '98 R/T
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:13:05 EDT