Author Topic: Rewiring front park/turn signal and fender marker on 70 Cuda  (Read 1743 times)

Offline elevenssc

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I'm about ready to pull my hair out on this one... :pullinghair:

I'm rewiring my 1970 Cuda and it's now down to the front park/turn signal and front side markers. 

The park/turn signal has two connectors, a spade terminal that has 2 wires, and a two prong plug with three wires (2 wires on one side of the connector, one on the other).  The side marker has the same three wire, two prong connector.

The E-Z harness has a wire for front parking lights and a wire for front turn signal.  I routed the parking light wire to one of the wires at the spade connector, and continued it to the two wire side of the side marker.  The remaining wires at the spade and side marker are taped off, not used.

The turn signal wire is routed to the single wire at the turn signal plug in connector.  The other two wires here are not used either.

I know things are not working cuz the lights dont come on, and the power wire at the steering column connection gets hot with the key in run and lights on... :swear:

I obviously dont have things connected correctly...any help is greatly appreciated...

Thanks for your help.




Offline elevenssc

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Re: Rewiring front park/turn signal and fender marker on 70 Cuda
« Reply #1 on: May 29, 2010 - 01:39:47 AM »
Think I discovered something...

The sheetmetal socket that the bulb mounts in has a poor ground connection to the metal light housing (is it zinc?).  I'm asuming that there is suposto be a good connection between the zinc housing and the sheet metal bulb socket...or is there???

I removed both front turn signal lights completly and things work as thet should.  I think I have a bad ground as stated above...

Thinking about things a little more, when those marker lights are installed, they are mounted to the grille, which is not grounded.  Is the 2 wire spade connector at the back of these lights the ground?  Of so, one of the two sides if the plug in connector would be the parking light and the other the turn signal light?

Please let me know if my late night  "eureak moment" is valid, or if it is out in the deep weeds...It's too late to think this hard... :bigsmile:

Thanks


Offline dutch

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Re: Rewiring front park/turn signal and fender marker on 70 Cuda
« Reply #2 on: May 29, 2010 - 05:17:08 AM »
the turnsignal ( in the grill)  is grounded with the black wire that also grounds the headlamps, but as far as I can see in the wiringmanual, it`s connected to the lighthousing and doesn`t run through the plug.  the black wire from the sidemarker plug is connected to the headlight for ground as well.
*** Bart ***

Offline elevenssc

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Re: Rewiring front park/turn signal and fender marker on 70 Cuda
« Reply #3 on: May 29, 2010 - 01:46:32 PM »
Thanks Bart,

I did get things working this morning.  The spade connector is the ground for the signal/parking light.  The single wire at the plug is for the running lights, and the double wire is for the signal.  Everythuing is working again... :cheers:

I'll get the side marker lights figured out later...gotta get this thing running again  :burnout:

Tom

Offline Chryco Psycho

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Re: Rewiring front park/turn signal and fender marker on 70 Cuda
« Reply #4 on: May 29, 2010 - 02:04:01 PM »
the sockets need to have a connection to the zinc housing to ground out the circuit
sometimes you can recreate the ground by peening it with a pin punch

Challenger - You`ll wish You Hadn`t