1986 300e Auto trans kickdown
I have a 1986 300e that fails to kick down to a lower gear when the gas pedal is fully depressed. The kick down button/switch makes a click when it is depressed, but the transmission does not respond. I know that there is a kick down solonoid, but how can I test the system to know if that is the problem? I would appreciate any and all help on this matter. Thank you.