2G Ground for coil pack?

Nasty Dream · Sep 4, 2011

I've read everything I could about grounding and 'where to' and such. I believe I have weak grounds that are causing some mild issues and so I decided to ground things like the alternator and engine with dedicated thick copper wire.

At least one person maintains that you should ground the coil pack as well. I'm looking at the coil pack and not sure where to ground:

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The line is showing that both black pieces are the same part.

Can/should I ground the circled bolt to the firewall, then to the battery?

The reason I ask is because the circled bolt is really on there tight, and I don't want to break anything. I mean, I put quite a bit of torque on it, and it didn't budge; I'm a little worried about snapping it or something.

concept4g63 · Sep 4, 2011

It wont snap just torque it out quick if your worried, and you don't need to ground it then ground to the battery one is good enough just make sure its a good clean ground, remember the motor and trans have 3 grounds total or so, ground it to somewhere on the motor and it'll be fine, what issues are you even having with it the way it is

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Nasty Dream · Sep 4, 2011

concept4g63 said:
It wont snap just torque it out quick if your worried, and you don't need to ground it then ground to the battery one is good enough just make sure its a good clean ground, remember the motor and trans have 3 grounds total or so, ground it to somewhere on the motor and it'll be fine, what issues are you even having with it the way it is

If I helped you out a little can you bump my rep

OK, the idea with grounding to the firewall first is because there are several grounds that would have to run all the way to the battery.

Instead of my throttle body, intake manifold, and coil pack each grounded all the way to the battery, I can ground them all to the firewall at the same point, then run 1 ground to the battery from that location on the firewall. Doing my alternator too.

remember the motor and trans have 3 grounds total or so, ground it to somewhere on the motor and it'll be fine, what issues are you even having with it the way it is

> At idle, with the turn signal on, I can hear the fuel pump loosing a lot of juice in time with the blinker. My profile for details on that. May need to tear into the rewire and see if I didn't mess something up.

> I've taken so much stuff out of this car, I don't even think the original grounds are in place anymore. I don't think there is a ground to the transmission right now, only the one from the engine itself.

ground it to somewhere on the motor and it'll be fine

I don't know, aluminum is 59% less conductive than copper, and I think the distance is too lossy. I don't even understand why the trans needs it's own ground ... but I might as well give it a good one?

Basically, the car is old, I'm just making sure everything has a more than adequate ground.

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2G Ground for coil pack?

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