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1970 B Body Ground Wires #2825732
09/27/20 05:35 PM
09/27/20 05:35 PM
Joined: Feb 2015
Posts: 265
Philadelphia, PA
GTXKARL Offline OP
enthusiast
GTXKARL  Offline OP
enthusiast

Joined: Feb 2015
Posts: 265
Philadelphia, PA
Hi.I have a 1970 Plymouth GTX. It seems to have a bad ground for the lights on the passenger side. This includes the brake light and parking lights. My brother said it should have a ground one on the engine to fire wall. I cannot find a new ground cable or wire. Is there supposed to one on the firewall to the passenger side of the engine? Any help is appreciated.

Last edited by GTXKARL; 09/27/20 05:35 PM.

Working on cars teaches you patience... and every curse word imaginable.

1970 Plymouth GTX -- A true gentleman's coupe, but a serious muscle machine.
Re: 1970 B Body Ground Wires [Re: GTXKARL] #2825742
09/27/20 05:46 PM
09/27/20 05:46 PM
Joined: Jun 2003
Posts: 21,396
It's a dry heat
gtx6970 Offline
Too Many Posts
gtx6970  Offline
Too Many Posts

Joined: Jun 2003
Posts: 21,396
It's a dry heat
Originally Posted by GTXKARL
Is there supposed to one on the firewall to the passenger side of the engine? Any help is appreciated.


Nope, body ground is a lead off negative battery cable to radiator support

Re: 1970 B Body Ground Wires [Re: GTXKARL] #2825847
09/27/20 10:09 PM
09/27/20 10:09 PM
Joined: Jan 2003
Posts: 5,439
So Cal
Sinitro Offline
master
Sinitro  Offline
master

Joined: Jan 2003
Posts: 5,439
So Cal
On my 70 RR I had funny ground issues with the lights...
My solution was to attach a ground lead from the voltage regulator mount on the firewall back to the engine, I used 1 of the back bolts holding the valley pan.

Just my $0.02... wink

Re: 1970 B Body Ground Wires [Re: Sinitro] #2825944
09/28/20 09:24 AM
09/28/20 09:24 AM
Joined: Apr 2007
Posts: 2,914
Calgary, Alberta Canada
a12rag Offline
master
a12rag  Offline
master

Joined: Apr 2007
Posts: 2,914
Calgary, Alberta Canada
When I got the Sport Satellite back from paint . . . and I put together, I added ground wires to front end wiring harness for the lights, as well as in trunk for the taillights . . .no issues . . . lack of good ground causes lot of weird things as the current tries to get to ground . . .

Re: 1970 B Body Ground Wires [Re: a12rag] #2826032
09/28/20 01:26 PM
09/28/20 01:26 PM
Joined: Sep 2003
Posts: 19,305
north of coder
moparx Offline
"Butt Crack Bob"
moparx  Offline
"Butt Crack Bob"

Joined: Sep 2003
Posts: 19,305
north of coder
grounds are your friends.
unless this is a 100% perfect show car, adding a few extra grounds will go far in preventing electrical maladies.
beer







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