Electrical - grounding question
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5th Wheeling
Joined: Jul 2015
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From: Rimforest Calilooneyland
Electrical - grounding question
I have a 99 F250 with a 6.8 in it. on the intake you have studs that hold down the ignition coils. do those studs act as a ground for the coils ?? I broke one of the studs and now when the truck is at idle it is very rough but when driving the truck is fine. I am just curious if this broken hold down stud could be part of the issue. Also on the rear axle where the ABS sensor is located I found the hold down bolt was stripped out and missing. In looking at the new Ford sensor I purchased I noticed it has a brass insert where the bold that holds it down is. Does the bolt holding the sensor in place act as a ground for the sensor? The threads on that one have been stripped for years and I am going to repair it here today but I am still a curious one about it !!! Any comments on this would be helpful. Thanks
Last edited by Ron Serling; Oct 12, 2025 at 10:25 AM.
Fleet Mechanic
Joined: Jan 2023
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No, the brass inserts are not ground connections for the injectors or ABS sensors. All connections for those devices go through the wires. A good scan tool like Forscan will show if/where there is a misfire.
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jbooth
1973 - 1979 F-100 & Larger F-Series Trucks
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May 3, 2005 11:29 PM
