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WINTERIZING YOUR TRUCK
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Joined: Oct 2021
Posts: 1,163
O
'Bolter
It;s a 6v system but the ice pick didn't light up when I touched it in all positions.

Further testing is going to have to wait until tomorrow evening after I get home from work.


1939 Packard Standard Eight Coupe (The Phantom)
1950 Chevrolet 3100 (Ol' Roy)
1956 Cadillac Coupe de Ville (The Bismarck)
1966 Oldsmobile Toronado (The Purple Knif)
1966 Ford Mustang (Little Red)
1964 Ford Galaxie 500 coupe
1979 Ford F-100
1976 Ford F-150 (Big Red)
1995 Ford F-150 (Newt)
Joined: May 2005
Posts: 9,098
B
Sir Searchalot
OK sorry, 6V. all positions of what? Try to be careful with words and be specific at this point.





Joined: Oct 2021
Posts: 1,163
O
'Bolter
I pulled the light switch out and tested hi and lo on all 3 dimmer terminals


1939 Packard Standard Eight Coupe (The Phantom)
1950 Chevrolet 3100 (Ol' Roy)
1956 Cadillac Coupe de Ville (The Bismarck)
1966 Oldsmobile Toronado (The Purple Knif)
1966 Ford Mustang (Little Red)
1964 Ford Galaxie 500 coupe
1979 Ford F-100
1976 Ford F-150 (Big Red)
1995 Ford F-150 (Newt)
Joined: May 2005
Posts: 9,098
B
Sir Searchalot
SO...........the answer is there is NO 6V power to center dimmer terminal when headlight switch is pulled all the way out. Right? Just answer the questions don't give all kinds of other info.

That, of course, means the headlight switch is not sending power to the dimmer.

If you want to test your work before investigating that problem. Take off the center dimmer wire you have now and attach a 12 ga jumper from that center dimmer terminal to the battery positive post and try the headlights and the dimmer.

1. You are using a ice pick tester with ice pick on the terminal and the clip on a good ground right?
2. You did put the negative battery cable back on, right?





Joined: Oct 2021
Posts: 1,163
O
'Bolter
Originally Posted by bartamos
SO...........the answer is there is NO 6V power to center dimmer terminal when headlight switch is pulled all the way out. Right? YES

That, of course, means the headlight switch is not sending power to the dimmer. Correct. Yet it was working before the repair started.

If you want to test your work before investigating that problem. Take off the center dimmer wire you have now and attach a 12 ga jumper from that center dimmer terminal to the battery positive post and try the headlights and the dimmer.

1. You are using a ice pick tester with ice pick on the terminal and the clip on a good ground right? Yes
2. You did put the negative battery cable back on, right? Yes


1939 Packard Standard Eight Coupe (The Phantom)
1950 Chevrolet 3100 (Ol' Roy)
1956 Cadillac Coupe de Ville (The Bismarck)
1966 Oldsmobile Toronado (The Purple Knif)
1966 Ford Mustang (Little Red)
1964 Ford Galaxie 500 coupe
1979 Ford F-100
1976 Ford F-150 (Big Red)
1995 Ford F-150 (Newt)
Joined: May 2005
Posts: 9,098
B
Sir Searchalot
OK, 1950 diagrams show that the headlight switch is fed by the ammeter. You say you have rear lights, so it seems like the headlight switch is getting power. SO either the headlight switch is bad or the wire to the dimmer center terminal is not connected.

DO NOT mess with what you have done. Leave ALL your work alone except if you want to test as I said at the dimmer center terminal.

You can check why no power to dimmer tomorrow, go slow and report here before you do anything. We don't want to get back into a mess again!
I don't know but you may have to drop and hang the headlight switch. Don't forget to disconnect the battery ground each time you start working on it.

Of course you need the battery connected to test for power at various places in order to figure out where power is interrupted.

As you know, previous owners can do all kinds of funny stuff to confuse us, so be aware of that. We will get this soon don't worry.





Joined: May 2005
Posts: 9,098
B
Sir Searchalot
Reference pic

Attached Images
DSC04518.JPG (153.19 KB, 72 downloads)




Joined: Oct 2021
Posts: 1,163
O
'Bolter
Yes. I checked, re-checked, and checked again before crimping any wires to make sure everything went where it was supposed to go so it's all wired according to that diagram.

Jumper wire to both terminals proves that wiring is correct, I guess.

So what's the likely suspect, pull switch?

What happened between starting the repair when pulling out the switch worked the high beams and finishing the re-wire that caused it not to work?

Is it strange that tail and park light setting works just fine?

Attached Images
IMG_20221004_163245.jpg (62.33 KB, 61 downloads)
IMG_20221004_163349.jpg (74.15 KB, 61 downloads)
Last edited by Otto Skorzeny; Tue Oct 04 2022 08:58 PM.

1939 Packard Standard Eight Coupe (The Phantom)
1950 Chevrolet 3100 (Ol' Roy)
1956 Cadillac Coupe de Ville (The Bismarck)
1966 Oldsmobile Toronado (The Purple Knif)
1966 Ford Mustang (Little Red)
1964 Ford Galaxie 500 coupe
1979 Ford F-100
1976 Ford F-150 (Big Red)
1995 Ford F-150 (Newt)
Joined: May 2005
Posts: 9,098
B
Sir Searchalot
Well I don't know what you did but this is what you were supposed to do:

If you want to test your work before investigating that problem. Take off the center dimmer wire you have now and attach a 12 ga jumper from that center dimmer terminal to the battery positive post and try the headlights and the dimmer.

You see here is the deal. YOU said
"Jumper wire to both terminals proves that wiring is correct."

I have no idea what terminals. I have no idea what the "proof" is. Something lit up when you did something?





Joined: Oct 2021
Posts: 1,163
O
'Bolter
OK, sorry. I didn't mean to confuse. Here's what I did:

I ran a lead from the + battery to the center terminal on the dimmer. When I pressed the dimmer switch in the cab it went from Hi beam to Lo beam as it should.

Lights worked on both Hi and Lo.

Can't really tell in the photos above but the first pic is Lo and second is Hi.

Last edited by Otto Skorzeny; Tue Oct 04 2022 09:28 PM.

1939 Packard Standard Eight Coupe (The Phantom)
1950 Chevrolet 3100 (Ol' Roy)
1956 Cadillac Coupe de Ville (The Bismarck)
1966 Oldsmobile Toronado (The Purple Knif)
1966 Ford Mustang (Little Red)
1964 Ford Galaxie 500 coupe
1979 Ford F-100
1976 Ford F-150 (Big Red)
1995 Ford F-150 (Newt)
Page 7 of 14 1 2 5 6 7 8 9 13 14

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