56' Power Seat Problem

[Merc Cruzer]

Originally Posted by miker98038

A 56 Ford/Merc should be 12 volts. 10 volts under load might not manage a seat relay, I've never checked. If you've got 12 volts at the switch, and 10 under load, try running a long wire from the battery to the relay and see if it closes and holds. If you're losing 2 volts (12 in 10 out) at the switch under load, you might be even lower at the relay. Old connections, etc. Doesn't take much loss and the relay will click but not hold.

Sorry missed that it was 56'.

If they are all the way up or down or all the way forward or back, you might have to remove the screw jack and move the seat just a little. I have had issues with mine if they are all the way up or down, forward or back, getting them to start again.

You might try starting the engine and increasing the revs to get a higher output from the generator/alternator, then try operating the switch.