Transmission issue? - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site

12-24-2009, 03:54 PM

woof

Drives: Yaris 3dr Hatch/Black

Join Date: Feb 2006

Location: Deep South

Posts: 114

Quote:

The ECU controls the warm-up from a cold start. The up-shift is delayed and will not up-shift to 4th until the engine is warmed, 2 to 5 miles.

I wonder if using a high quality transmission fluid like Amsoil would reduce the auto warm-up time? Is there a fluid temp sensor?

Any ideas?

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