Technical Just a little help

I have a 1940 mercury. It keeps blowing out my 30amp fuse( power seats and windows.). Just started doing this. Each time I change the fuse it works for a few seconds then blows out. Any ideas why it doing this?

 

Not familiar with the '40 Mercury power seats or power window options?
But maybe someone on the internet can help you.

 

Ok. That's a smart-ass answer. The car in your avatar looks cool.
But I'm not sure many HAMB threads will get very technical on, or admit power seats or power windows. Hope you get it figured out, maybe someone will pm you.

 

Maybe you have a bare wire under the seat or in the door. When you move the seat or roll down the window it shorts and pops the fuse?

 

If it blows the fuse to the power seats and windows you know where to look for the problem. My first thought would be to look for a bare wire at or near the door jamb

 

Yes you have a short somewhere. Start checking the wiring. What color is your Merc? Very nice.

 

Maybe your butt is to heavy, ha ha--only joking. I would disconnect one or the other to isolate the problem, is it the window or the seat, that would be the question, or it could be the main power going in, before going off to the two separate components. Whatever you do, don't wrap the fuse in tin foil.

 

are there any relays in the system? really would help prevent overloads

 

Black

 

Thanks for the help.

 

If no shorted wiring found maybe the motors are getting tired or mechanisms are dirty, binding. Put a DC amp meter on the power leads to each and see what the draw is. Maybe just enough over the fuse rating to blow them

 

unplug both circuts and connect one at a time, your prolem will show itself quickly!