Lexus LS400 Shift Points

[Omrie Sabbagh]

I Have A 1992 Lexus LS400 With 102,500 Miles, And Sometimes Under Full Acceleration, It Randomly Decides To Shift At 5800 RPM Under Kickdown. This Is On Flat Land Mind You. Anybody Know Why?

 

[Omrie Sabbagh]

I Have A 1992 Lexus LS400 With 102,500 Miles, And Sometimes Under Full Acceleration, It Randomly Decides To Shift At 5800 RPM Under Kickdown. Typically it shifts at around 6000, however, I see some shift at 5800. This Is On Flat Land Mind You. Anybody Know Why? Is there a cable I am able to adjust to change said points?

 

[P Bateman]

The cable adjusts transmission line pressure, not kickdown.
You should have a kickdown switch that is activated by the throttle pedal
Check the kickdown switch is working properly
Check your throttle position sensor signal at 100%