[Yachtmanbuttson]

I know I read somewhere that it was designed into the M104 transmission to delay the shift from 2nd to 3rd when cold. Something about catalytic convertor? I live in southern Florida and it doesn't get cold and I don't like revving my engine up over 2,000 rpm waiting for that first shift. Anyway of disabling that "feature"?

Thanks, Bill

 

[sbaert]

Search the forum for "upshift delay valve"

The feature is designed to get the entire drivetrain up to temperature faster, not just emissions, and helps promote longevity.

 

[mercron]

Upshift delay is all managed by the ECM and temperature dependent. It is disabled when coolant temp reaches 50c. If you live in a warm climate, then it disables faster.


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