Finally got a switch hooked up to the M410, but it won't shift.

Question 1: Is there somewhere extra that I need to put fluid in for the OD?

Question 2: Is there something that I can check to see if the OD solenoid is good?

Thanks

Kent
1972 164
1968 1800
1955 T-Bird

Your power for OD solenoid follows this route. Fuse number 4, switch, then through a switch on the tranny that is in series with the solenoid so the OD will not work in any gear but 4th. If this switch is non functioning, you will not get OD.

You can test the 4th gear switch while driving. Just pull the shift lever further to the right and rear. If this gives you OD the change the 4th gear switch. IF it does not, it may still be the 4th gear switch but you will have to test with the auto stopped and you underneath with a test lamp tracing wires.

The indicator light is in parallel with the 4th gear switch after the first switch. If indicator goes on, the 4th gear switch or the solenoid or wires in between are not functioning.

If all the electrical is functioning, and the solenoid reacts to power, you have failed actuating piston seals and the OD will need to coe of the tranny to repair.

Duane

The OD unit will share the same fluid... so that shouldn't be a problem is its full..

As for testing the solenoid, you should be able to just put it in 4th gear and try turning it on and listening for a click. Car shouldn't have to be moving to get the click...

-Matt