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Transmission

xsheepherder

By xsheepherder
in Ask A GM Technician

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xsheepherder Enthusiast

xsheepherder

Posted
Posted

:( When tranmission shifted into overdrive at 90 mph, my wife thought we had a blow out. Beats me, any ideas???? Bad vibarations and loud clunk??

GMC 06 CC 4X4......Been pricing new PCMs. Might better wait, might need warranty :mad:

xsheepherder

mmmikkke Senior Enthusiast

mmmikkke

Posted
Posted

What, are you driving your brand new truck at WOT and crossing 90 mph that way with your family on board? I'd clunk too!

ZZebes Senior Enthusiast

ZZebes

Posted
Posted

i know when mine shifts into 3rd at 85mph at WOT it is a really hard shift.

 

btw you are shifting into third at between 85-90mph crazy i know

Buggle_96 Enthusiast

Buggle_96

Posted
Posted

After a Wait 4 me tune and with 3.42's and 265's my truck shifts into 3rd at 92....screaming the whole way too. A hemi rolled up on me at 65-70mph and I walked away. I was suprised.

pm26 Senior Enthusiast

pm26

Posted
Posted

I have not tried anything like this with my '06 truck, and i do not think I will. When I want some fun leaving just about all motor vehicles in the dust, I jump on my Suzuki Bandit 1200S.

jhm Senior Enthusiast

jhm

Posted
Posted
:flag: When tranmission shifted into overdrive at 90 mph, my wife thought we had  a blow out.  Beats me, any ideas????  Bad vibarations and loud clunk??

GMC 06 CC 4X4......Been pricing new PCMs.  Might better wait, might need warranty :cheers:

xsheepherder

 

 

 

Were you going uphill? :D

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