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Old 02-15-2012, 01:34 AM   #1
Ornery37
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1965 turn signal / brake light rewiring issue

Hi, I have spent a couple of hours searching through the forum (through electrical section and doing searches) and several electrical books and have had no luck finding my issue.

I was wondering if any one had a wiring diagram for the 64-66 chevy trucks?

I have a 1965 chevy truck with a 1966 bed (has backup lights) most of the wiring was bad or gone so have been wiring it all myself. I have been checking my work along the way. And all is good, until I hook up the turn signals and park lights.

parts used are new 14 ga wire and HD turn signal switch # 910-62860 (aftermarket turn signal switch from speedway) (original switch to the truck is damaged and missing parts)

The left taillight has 3 wires coming off of it and the right only has two. So, assumed that the 3rd wire was for ground. The turn signals work fine with that hook up, but the park lights will not come on and wires get hot. So, disconnect the 3rd wire on the left side and park lights work fine, left turn signal works fine, but the right turn signal slightly flashes both taillights.

any help is greatly appreciated
Thanks
Rick
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1964 long fleet bed large rear window (project)(sold)
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1937 chevy fenderless pu (use to be daily driver)
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Old 02-15-2012, 01:37 AM   #2
Ornery37
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Re: 1965 turn signal / brake light rewiring issue

forgot that 3rd wire from the left bucked is ground to the frame and not the body.
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1964 long fleet bed large rear window (project)(sold)
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1937 chevy fenderless pu (use to be daily driver)
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Old 02-15-2012, 01:58 AM   #3
VetteVet
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Re: 1965 turn signal / brake light rewiring issue

Here is what I have. The first one is the engine compartment and the front end and the second is the cab and dash. The third is the rear lights.


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The three wires off the left lamp are a yellow which is the left turn/brake wire and the tail light ( brown) and another brown for the license plate.

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Old 02-15-2012, 02:14 AM   #4
Ornery37
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Re: 1965 turn signal / brake light rewiring issue

Thank You VetteVet! This looks like it will help.
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1964 long fleet bed large rear window (project)(sold)
1965 chevy short fleet large rear window bagged (project)(thinking crew cab)
1965 chevy short fleet (driver/worktruck)
1937 chevy fenderless pu (use to be daily driver)
1983 MB turbo diesel (daily)
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Old 02-15-2012, 08:10 PM   #5
Ornery37
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Re: 1965 turn signal / brake light rewiring issue

I found it to be a ground issue with the right tail light. Found this by taking another taillight and hooking it up off the vehicle and it worked.
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1964 long fleet bed large rear window (project)(sold)
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1965 chevy short fleet (driver/worktruck)
1937 chevy fenderless pu (use to be daily driver)
1983 MB turbo diesel (daily)
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Old 02-15-2012, 08:41 PM   #6
VetteVet
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Re: 1965 turn signal / brake light rewiring issue

Poor grounds are a common issue on these old trucks. Glad you got it fixed.
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Old 10-14-2016, 01:09 PM   #7
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Re: 1965 turn signal / brake light rewiring issue

Hi ez wire issue on my 65 k10.help
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Old 10-14-2016, 03:39 PM   #8
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Re: 1965 turn signal / brake light rewiring issue

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Originally Posted by Bloosman View Post
Hi ez wire issue on my 65 k10.help
If you would be kind enough to go back to the electrical forum and click on thread tools and click on post a new thread. Then give us the details, we can help you better.
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Old 10-14-2016, 04:15 PM   #9
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Re: 1965 turn signal / brake light rewiring issue

I bought a ez wire 21 circuit for my 65 k10.in an a.c. electrician but can't make heads or tails of directions.need help across the board.in New here and thankful I guys are here to help
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Old 09-08-2017, 01:10 AM   #10
1966FLEETSIDE
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Re: 1965 turn signal / brake light rewiring issue

I have 4 wires going to the back of my 65 1 is dark green 1 is yellow with brown stripe 1 brown and 1 is teal or lighter green any help is helpful thx
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Old 09-08-2017, 02:32 AM   #11
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Re: 1965 turn signal / brake light rewiring issue

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Originally Posted by 1966FLEETSIDE View Post
I have 4 wires going to the back of my 65 1 is dark green 1 is yellow with brown stripe 1 brown and 1 is teal or lighter green any help is helpful thx
The standard colors for GM cars and trucks are.

Dark green--Right turn/brake light

Yellow-- Left turn/brake light

Brown---- Tail lights and license plate light.

Light green---Backup lights

Is this what you need?
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Old 09-08-2017, 09:21 AM   #12
1966FLEETSIDE
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Re: 1965 turn signal / brake light rewiring issue

Thx vettevet very helpful,except mine didn't come with backup lamps so I guess I will cap the light green wire.thx again vettevet
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Old 09-08-2017, 10:16 AM   #13
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Re: 1965 turn signal / brake light rewiring issue

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Originally Posted by 1966FLEETSIDE View Post
Thx vettevet very helpful,except mine didn't come with backup lamps so I guess I will cap the light green wire.thx again vettevet
Glad to help.
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