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Ground Wire Improvement

23K views 4 replies 3 participants last post by  Mufcpeter  
#1 ·
It's been a while since I've posted here, but I've had some electrical issues that MAY have been improved with a simple modification.

I've had the clutch pack replaced for the DCT shudder, as well as the passenger motor mount for a different shudder. Everything was fine until a few months ago.

The shuddering came back, even though the dealer re-flashed the TCM and said it was within specs. I also was stranded when my car would not turn over, even though it was "fine" two hours later.

The radio began crackling and making revving sounds with the engine, and finally the last straw was when I had to pull the SYNC fuse 67 because I lost Bluetooth and microphone capability. This had all been spaced out over months.

Thinking that the simplest explanation is a faulty ground, I went to YouTube to see if anyone else had this issue. There is a Ford Tech that explained that the ground wire plate was actually painted at the factory on the Fiesta and Focus, so the only really solid metal connection is the bolt in the bolt hole, which is not enough.

So, following his instructions, I disconnected the ground wire and sanded down the plate to bare metal so there is a solid connection all-around. I then applied dielectric grease per his instructions.

I can't claim huge power increases, but the radio issue went away, and I cannot duplicate my DCT issues yet (that may be the key word, however).

Before, I could not climb my driveway without shuddering, nor gently go from 1st to 2nd. That's gone for now. Hopefully, it holds.

There is no downside to this mod, only an upside. YMMV.

https://youtu.be/eh8PIL5E_6M
 
#2 ·
Good fix to do.

Makuloco's video on that is in the "stickies' here, it's supposed to be one of the first steps when trans./electrical problems show up.
 
#4 ·
Good luck, hope that helps you a LOT.

Main ground direct to body, and depending on the fresh threads cut by the bolt, is NOT the greatest setup. Earlier models used a direct main ground straight to the engine, with smaller grounds to the body & it was STILL a first point to check for electrical problems.
 
#5 ·
Hi have an early 14 plate focus estate, would this be the same setup with the earth plate or is there individual body connections? Im having problems with instrument cluster, stereo and washer pump. At 1st it was just the cluster flickering off and resetting,then the stereo going at the same time and now the washer pump. Its now coming more frequent and sometimes it can stay off for a few days. I have read up that there was a factory issue with the soldering on clocks for some models but i dont see how that would effect the stereo and the pump (or maybe im barking up the wrong tree and its just coincidence).