C4 Electrical questions
Thread Starter
Instructor
Joined: Dec 2019
Posts: 167
Likes: 10
From: Corpus Christi Texas
C4 Electrical questions
Hello all,
Nice to be back. Been gone for a while. Still having issues with the old vette.
Question: Where does the main ground wire that comes off the driver's side of the block attach? I found it hanging down when I brought the car home. The manual I have does not show in the diagram the frame attachment point. I attached it to a point where a brake line bolts on. Funny thing is the security system started working after that and locked me out of the car.
Nice to be back. Been gone for a while. Still having issues with the old vette.
Question: Where does the main ground wire that comes off the driver's side of the block attach? I found it hanging down when I brought the car home. The manual I have does not show in the diagram the frame attachment point. I attached it to a point where a brake line bolts on. Funny thing is the security system started working after that and locked me out of the car.
Pro
Joined: Sep 2010
Posts: 745
Likes: 66
From: Hutto Texas
Hey Mark. I do not have a '85 but based on your picture, that is where the EST plug should be as it is tan with a black stripe. Not sure why a previous owner replaced with with a household screw on wire cap. Maybe the original plastic connector broke due to age. Regarding your ground situation, I cannot find the mounting point on the frame but it sounds like found a good spot for it as other electrical systems started working. Hopefully another '85 owner can more up a picture where the ground is attached.
Thread Starter
Instructor
Joined: Dec 2019
Posts: 167
Likes: 10
From: Corpus Christi Texas
Thanks for the feedback. My car won't start and I am pretty sure it is electrical. Currently running down wires. I have rebuilt the distributor, put on new wires and plugs. I have spark and fuel but this car has been giving me issues ever since I did a transmission service, changed oil, flushed the radiator. I may cry uncle and take it to a shop for help. Enjoy the rest of your weekend.
Advanced
Joined: Mar 2020
Posts: 53
Likes: 17
From: Colorado Springs
There is a ground wire location that comes off the back of the head on the drivers side of the engine. I had to remove the windshield wiper motor to get to mine. The other ground on that side you can find by following the battery ground wire to it's location.
Last edited by caverdan; Mar 8, 2020 at 10:49 AM.
