1965 f100 problem

Reply Subscribe

Thread Tools

Search this Thread

Jan 13, 2009 | 09:14 PM

Broke_Okie

Thread Starter

Junior User

Joined: May 2005

Posts: 68

Likes: 0

From: Clovis,CA.

1965 f100 problem

A friend has a 1965 swb f100 2wd truck. Recently both right and left turn signals and both brake lights stopped working. He has all of the running lights working. No fuses are bad . Wiring is in tact. What could be causing this?

Jan 13, 2009 | 09:32 PM

72bronc

Junior User

Joined: Jan 2009

Posts: 63

Likes: 0

From: Glastonbury, CT

check the signal light switch happened to my 66 I believe the brake lights run through the switch

Jan 13, 2009 | 09:45 PM

Broke_Okie

Thread Starter

Junior User

Joined: May 2005

Posts: 68

Likes: 0

From: Clovis,CA.

Thanks I will check it out.

Jan 13, 2009 | 09:48 PM

Bill W

Hotshot

Joined: Jan 2007

Posts: 11,564

Likes: 4

From: Tucson

also check under the steering wheel, the power wire for the brakes runs through the indicator switch, mine was replaced at some point and the PO did a bad job with conections. Good luck

Jan 14, 2009 | 05:57 AM

jowilker

Fleet Owner

Joined: Jun 1999

Posts: 24,552

Likes: 74

From: Creedmoor, North Carolina

Normally I suggest starting at the rear of the truck. The turn signals and brake lights share the same bulb filiment. Since both sides stopped working at the same time, I agree with the others that the issue is likely in the cab.

An ice pick type circuit tester will work well diagnosing the problem.

John

Jan 14, 2009 | 01:53 PM

Broke_Okie

Thread Starter

Junior User

Joined: May 2005

Posts: 68

Likes: 0

From: Clovis,CA.

Thanks. I tested the brake switch by disconnecting the switch and used a wire jumper w/ ignition on and off and no brake lights at all. I did a visual inspection and found no visible problems. Next I will look at the turn signal switch. Is there a way to test it other than just replacing it?

Jan 14, 2009 | 02:06 PM

72bronc

Junior User

Joined: Jan 2009

Posts: 63

Likes: 0

From: Glastonbury, CT

no lights

Pull your steering wheel off. I'm not sure if it was just mine, but there was a screw through the switch. I tightened the screw and it mad contact and all is fine. there may be a contact problem in the switch, but you'll have to pull the wheel off.