Ford F150 rear right BRAKE light problem

Your hazards and brakes should be on the same 'fuse' circuit I think.
The turn signals have their own fuse. Same bulbs and wires going on
back so that part is fine, but their power supplies are different... My
bet is on the hazard switch...

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
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papadad wrote:
>
> Thanks to those who replied.
>
> 1) there are no trailer wires
> 2) all grounds are good, re-done, new etc. So not a ground problem
> 3) flasher itself (both turn and hazard) are working normally so not
> the flasher
> 4) i actually re-wired (temporarily) the RIGHT lights to the LEFT
> lights (in parallel) and everything works...further confirming it's not
> something ike a light bulb or a bad ground at the bulb socket.
>
> The above post gives me a real (not a guess) lead -- I now suspect the
> trouble is in the turn signal switch itself - with the lever in
> neutral, both rear lights SHOULD be connected to the output of the
> brake light switch. But one is not lighting...maybe the turn signal
> switch on the steering column is faulty. It would also explain why,
> when using either right or left TURN (when the switch is in turn mode,
> not neutral positiong) that the rear lights each blink properly, ie,
> the wiring and the bulb and the socket are all functioning
> NORMALLY...also, no fuses are blowing so there is not a short anywhere.
> Remembering that the Blink and Brake are on the SAME circuit.
> So...somehow the TURN position is working but the BRAKE position
> (right side) is NOT.
>
> I bet a dozen donuts it's a faulty turn signal switch. This is the
> best thing to go on, thus far, i mean, logically this makes perfect
> sense and the reason why I found no probems in the rear-end wiring
> after hunting for 2 to 3 hours the other day. No problem to be found
> back there....
>
> Any other thoughts?

Replace the signal switch. And if you are connecting a trailer, make sure
the trailer is not overloading the circuit.


"papadad" > wrote in message
ups.com...
> 1976 Ford F150 pickup truck is having rear right brake light problem.
> The rear right brake light does not come on during braking. it also
> does not come on during hazard flasher use.
>
> 1. Rear, right and left RUNNING lights work fine.
> 2. Rear, right and left TURN signals work fine.
> 3. Rear LEFT brake light works fine
> 4. Rear RIGHT brake light does NOT work
> 5. Hazard lights work EXCEPT for RIGHT...which does NOT light up.
>
> I have changed bulbs, flashers, and tested the socket and wiring up to
> the connector under the tailgate and the bulbs etc are fine. Since
> both directionals are working, and the directionals use the SAME
> filament as the brake, I know it is something else.
>
> Any ideas? How to chase down this gremlin. Spent all day
> cutting/splicing/trying to islolate the problem to no avail.
>
> Any ford techs on here can help?
>

So, how do I get into the steering column to get to the turn signal
switch. Tried to remove the steering wheel but can't get it unstuck.

"papadad" > wrote in message
oups.com...
> So, how do I get into the steering column to get to the turn signal
> switch. Tried to remove the steering wheel but can't get it unstuck.
>

Get a very strong friend to pull hard..... <grin>

Actually:

Steering wheel puller, sold at most parts supply stores. Cheap ones are
under 10 dollars, but may not work well on a really tight steering wheel.
Good ones are about 40 dollars.

--
Kevin Mouton
Automotive Technology Instructor
"If women don't find you handsome, they should at least find you handy"
Red Green

"papadad" wrote:

How do I get into the steering column to get to the turn signal
switch. Tried to remove the steering wheel but can't get it unstuck.
__________________________________________________ ______

It usually takes a wheel puller tool to get a steering wheel off.

Sometimes the contacts in a turn signal switch are intermittent
due to corrosion, dirt, or grease. Before removing the wheel,
try spraying electronic parts cleaner (some people use WD-40)
into the turn signal switch through the side of the steering
column while repeatedly (20-40 times) exercising the turn signal
lever through its range of motion.

Good luck.

Rodan.

On Thursday, May 11, 2006 at 10:05:24 PM UTC-5, Rodan wrote:
> "papadad" wrote:
>
> How do I get into the steering column to get to the turn signal
> switch. Tried to remove the steering wheel but can't get it unstuck.
> __________________________________________________ ______
>
> It usually takes a wheel puller tool to get a steering wheel off.
>
> Sometimes the contacts in a turn signal switch are intermittent
> due to corrosion, dirt, or grease. Before removing the wheel,
> try spraying electronic parts cleaner (some people use WD-40)
> into the turn signal switch through the side of the steering
> column while repeatedly (20-40 times) exercising the turn signal
> lever through its range of motion.
>
> Good luck.
>
> Rodan.

i just fixed my problem. thwires at the connector were broken. the insulation was still ok, but the wire was not making contact. bypass the connector and test the filaments with a testlight.

> wrote:
>On Thursday, May 11, 2006 at 10:05:24 PM UTC-5, Rodan wrote:
>> "papadad" wrote:
>>
>> How do I get into the steering column to get to the turn signal
>> switch. Tried to remove the steering wheel but can't get it unstuck.
>> __________________________________________________ ______
>>
>> It usually takes a wheel puller tool to get a steering wheel off.
>>
>> Sometimes the contacts in a turn signal switch are intermittent
>> due to corrosion, dirt, or grease. Before removing the wheel,
>> try spraying electronic parts cleaner (some people use WD-40)
>> into the turn signal switch through the side of the steering
>> column while repeatedly (20-40 times) exercising the turn signal
>> lever through its range of motion.
>>
>
>i just fixed my problem. thwires at the connector were broken. the insulation was still ok, but the wire was not making contact. bypass the connector and test the filaments with a testlight.

Did it really take you ten years to fix it?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Scott Dorsey wrote:
> > wrote:
>> On Thursday, May 11, 2006 at 10:05:24 PM UTC-5, Rodan wrote:
>>> "papadad" wrote:
>>>
>>> How do I get into the steering column to get to the turn signal
>>> switch. Tried to remove the steering wheel but can't get it unstuck.
>>> __________________________________________________ ______
>>>
>>> It usually takes a wheel puller tool to get a steering wheel off.
>>>
>>> Sometimes the contacts in a turn signal switch are intermittent
>>> due to corrosion, dirt, or grease. Before removing the wheel,
>>> try spraying electronic parts cleaner (some people use WD-40)
>>> into the turn signal switch through the side of the steering
>>> column while repeatedly (20-40 times) exercising the turn signal
>>> lever through its range of motion.
>>>
>>
>> i just fixed my problem. thwires at the connector were broken. the insulation was still ok, but the wire was not making contact. bypass the connector and test the filaments with a testlight.
>
> Did it really take you ten years to fix it?
> --scott

I was wondering the same thing.

Paul in Houston TX wrote:

>>> i just fixed my problem. thwires at the connector were
>>> broken. the insulation was still ok, but the wire was not
>>> making contact. bypass the connector and test the
>>> filaments with a testlight.
>>
>> Did it really take you ten years to fix it?
>> --scott
>
> I was wondering the same thing.

I've had some problems that took over a year to figure out,
but never as long as this poor guy. Hope it stays fixed!