[mIAn]

Hi All,

I have STS 3.6 20005.
From last few days i have observed increased RPM. e.g. before at 70MPH RPM 2200 but now its 2400^2500.
I also feel the drive is not that smooth, feeling like something reducing the power.

Thanks,

 

[Ludacrisvp]

Perhaps you lost 5th gear ?

 

[BaTu]

TC not Locking-Up?

 

[dkozloski]

Go to manual shift mode and see if there is a difference in RPM between gears.

 

[mIAn]

Go to manual shift mode and see if there is a difference in RPM between gears.

its same manual and automatic.
should I change the transmission oil?

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tc not locking-up?

tc???

 

[BaTu]

Sorry, TC = Torque Converter.

To eliminate the "slip" in the hydraulic coupling, the TC contains a set of clutches that Lock 100% when at hiway speeds (usually something like 40mph+ in high gear). That slip being eliminated can sometimes "feel" like a shift and a corresponding drop in rpm.