Where Are ALL the 7M-GTE Grounds?

MA70witBoost

Registered Drifter
Getting ready to drop my motor back in the car and i want it running good with no issues. I remembered a wire that is by the fuel rail/coil packs that is just loose. Looks like a ground to me, so it got me thinking/wondering... Anyone have a diagram/photo/pdf, etc. showing the ground points for the 7M? Thank You!
 

black91turbo

Formerly black87turbo
Apr 27, 2006
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Jacksonville, FL
no diagram but, you have one by the back of the head that goes on the engine hook, tranny ground, main ground with battery, coil pack, i know i am missing one, just can't think of it right now...
 

HommerSimpson

New Member
Dec 31, 2007
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New Smyrna Beach Florida
From the ECU there are 2 sets of ground wires... with 2 wires in each set(i think) both on same eyelet....... one pair of brown and other is white and you have your coil ground... ground from bellhousing to frame by starter... and ground from transmission mount to trans bracket

coil ground needs to go to intake... not valve covers...
 

dugums

Better, Faster, Stronger
Apr 10, 2007
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Chicago, IL
Is this the wire you are talking about?

p1074221_1.jpg


p1074221_2.jpg


(photos provided by 90TO4 in an older post)