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Old 04-18-2014, 09:31 PM   #11
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BOOYAH
It looks like it was the driver side ground for that section of the wiring harness. I didn't touch it recently, so I can't imagine how it would have affected things at all

all I did was grind away all the paint on the grounding spot, grind away surface build up on the terminal, wire brushed the bolt, did the same for my battery to chassis ground, and made sure those two grounds were not grounded to the same bolt. Then I topped it all off with some dielectric grease.

Once again, I'm super stoked to have some awesome knowledge out there on the forum with you guys

Can someone explain to me why my ground would have all of a sudden not been sufficient? It worked just like that for almost a month. The only thing that changed was I did the timing belt change. thoughts?
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Old 04-18-2014, 09:53 PM   #12
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Same reason, Snit happens. Some times paint under the ground "right from the factory".
Ya still gotta have good metal to metal as grounds are everything, ya did real good!
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Old 04-18-2014, 09:53 PM   #13
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Just good enough 'till the day it isn't, then it's no good at all. Might test to have continuity with a meter, but won't handle a load in the condition it reached when it quit.

Glad it's working!
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Old 04-19-2014, 12:44 AM   #14
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Yea it was definitely testing as a good ground on the meter, but i guess it's like you said, it wasn't enough! Looks like I shall be doing the big 3 sooner rather than later.
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Old 04-19-2014, 12:05 PM   #15
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Test light is better proof for power, since it takes at least a little to light it. I've got a powered test light that can check power or ground, I THINK it's a little better for testing marginal grounds than a meter for the same reason.

All to easy to be fooled by a marginal connection that's only good enough to look OK to a tester - not good enough to handle a load.
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Old 04-20-2014, 11:16 PM   #16
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Same problem...Kinda

I am having the same problem but on the passenger side. My lowbeam, tail light and side marker lights don't work and keep blowing fuses. Does anybody know where the passenger side ground is? Thanks! CM
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Old 04-21-2014, 12:09 AM   #17
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A bad electrical ground that causes a fuse to blow is rare, but can happen. More likely that you have a broken/damaged hot wire touching ground somewhere on that side. Please inspect all light bulb holders/sockets and inspect the surrounding wiring area too.

Also consider door/hatch wiring (rubber boots) that get moved when a door opens.

damaged wires pic here;
http://www.focusfanatics.com/forum/s...09&postcount=5
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Old 04-21-2014, 09:52 AM   #18
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Quote:
Originally Posted by Rock36 View Post
I am having the same problem but on the passenger side. My lowbeam, tail light and side marker lights don't work and keep blowing fuses. Does anybody know where the passenger side ground is? Thanks! CM





if you look where the headlight connector is, the ground exits the wiring harness within a few inches and then extends towards the rear of the car for about 4-6" before bolting down.



If in doubt, the ground is very close to the passenger motor mount.
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Old 04-21-2014, 09:53 AM   #19
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Well Marde, considering that my reverse lights seldom work and my reverse lights in general have lost all of their grommets that seal it to the body, I think I'll be tackling that one next
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Old 04-22-2014, 06:40 AM   #20
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Thanks guys! I'll have a look this weekend and report back!
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