100mph and possible backfire

[IGottaSy]

Re: 100mph and possible backfire

When I drive in D and its coming to a stop it really downshift@ hard... Anyone one else get harder downshift when in D vs Od? What's the advantage of being in D when racing? Better shift on the ladder, torque converter engaged all the time?

Higher line pressure. Due to different, more direct oil pathways being utilized if I understand correctly.

Less slippage. Less heat.

 

[hatrik8]

Re: 100mph and possible backfire

I believe I have read that the hard downshift in D is common.
I know I have it and I think a lot of others have it also.

I think my truck also doesn't do the upshift at WOT.

 

[Damian]

Re: 100mph and possible backfire

Mine shifts hard in D all the time, never paid attention to it in OD since I only shift into OD when I need it.

 

[atkonkler]

Re: 100mph and possible backfire

Thanks Damian and all those who helped , I'm gonna drive around with it in D and only use Od. When I'm on the highway...

 

[IGottaSy]

Re: 100mph and possible backfire

These trucks go into OD at around 42-44mph under normal driving. Converter is locked up shortly after 3rd gear engages. I believe.