Classic/Antique Car Repair/brake light switch

Advertisement


Question
QUESTION: I have a 1949 ford 4 door and the brake lights stayed on. I ordered a new switch and need to know where to install it. If this doesn't take care of problem what else could it be and how do I fix it?

ANSWER: I don't know exactly where it is, but I assume that it is a pressure actuated switch.  If it is, it has to be in the brake circuit, usually near the master cylinder.  If it is mechanical, it is in the linkage near the pedals.  Until you get the new switch, look near the master cylinder and look for wires going to a little round switch.  Take a wire off of it and the lights should go out.  If they don't, then trace the wires back toward the tail lights and look for a grounded wire that is closing the circuit.  Should be simple to find.  If it is mechanical, look for the switch in and around the linkage and do the same thing.  
Good luck and let me know if I can be of any more help.  
jack

David, since you are not a mech., the fact that the switch went bad may indicate that the brakes have been neglected.  Better have someone check them out. Your toy must be a safe toy. A ford dealer or one of those brake shops should be able to tell you if they are safe.
Jack

---------- FOLLOW-UP ----------

QUESTION: Jack, thanks for the concern! My wife got this toy for me and yes it has a few little problems but nothing major! The car is all original and has low miles! I would say it's 95 percent. The brake system is the big thing but I got everything new that way I know it's right. If I can I need to ask you another question if I can? I can't find a fuse box! Did this car not have one. If it does where should I start to look? If it doesn't,then does each wire have it's own fuse? Sorry to be a bother! Again, thank you for your time,patients and knowledge! Thank you,David

Answer
I don't remember if it had one or not.  I,m sure it is fused, but not every circuit.  There must be a central fuse.  Look under the Instrument panel, probably on the left side of car.  Also, check in both cowl panels.  Find a ford car club and join it.  You will have much more fun with the car, and they will have all the answers.  A v8 club would be good.  You should also try to find a shop manual for the car.  They are out there, look on the net for one.
Good luck
jack

Classic/Antique Car Repair

All Answers


Answers by Expert:


Ask Experts

Volunteer


jack bahm

Expertise

Only repair type questions on the 1928-1931 Ford Model A.

Experience

Owned one when I was 15 yrs old, and now have owned 5. Still own and play with 2 of them.

Organizations
Oakleaf region of MARC. Model A Restorers Club. I have put several Model A videos on the Oakleaf site that may be of help. Things like how to start the A, how to Time it, how to troubleshoot it.. Go to oakleafregion.org and you will find them. jack

Publications
"More than you need to know about cars." Just a small book for Car Nuts. Blurb.com "Model A Ford Tips and Hints" Blurb.com 2010 Many Model A movies that can be found on youtube.com/jackbahm

Education/Credentials
BSME LSU, 1958, Masters of automotive engineering from the Chrysler Institute of engineering, 1960, MBA Mich State, 1976. Worked as an engineer at Chrysler from 1958 to the end of 1991.

Awards and Honors
Two patents while working in auto industry.

©2012 About.com, a part of The New York Times Company. All rights reserved.