Engine/Transmission (1998.5 - 2002) Auto shift pattern question?

[rono]

This may be a strange question, but how does the auto shift? Is it 1 to 2 then 2 to 3 then tc lock then OD. Or does OD come on before tc lock?



Thanks, Ron

 

[DHawk]

00 And Newer Tc Partial Lock Before O/d Unless Wot.

Dhawk

 

[Rattlin_Ram]

1, 2, 3, lock, un-lock, OD, lock... it' locks in 3rd but unlocks for the shift to OD...

 

[TGibbs]

Is that why with a mild throttle it takes a while to shift to OD??

 

[Vaughn MacKenzie]

00 And Newer Tc Partial Lock Before O/d Unless Wot.

Dhawk

Can you describe "partial lock" Dhawk?

 

[Stark_Ent9802]

Since were talking about shifting here, what are your opinions on why the heck my 98 24v 3500 auto shifts in to 2nd gear at like 5 mph/1700 rpm. its very annoying, i find myself shifting it maunally on the column more and more!

 

[Vaughn MacKenzie]

DP I heard there's a screw on the valve body or somewhere you can turn to adjust the shift points to a degree, such as 75 RPM per turn.



Any truth to this anyone?

 

[DHawk]

Partial Lockup=conv Clutch Is Engaged And Disenaged Per Computer So Fast, Do Not Hold Me To This, 50o Times A Second Per Pci Bus Line. This Could Be Way Off Can't Remember The Allowance. Pmcce=partially Modulated Converter Clutch Engagement.

Full Lockup=fmcce=fully Modulated Converter Clutch Engagement. When O/d Has Engaged, Parameters Are Met, Tps, Speed Sensor, Brake Switch, Engine Temp, Trans Temp, P/n Switch, Etc Full Lock, No Modulation.



Dhawk