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Ground wire location

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Old Apr 12, 2017 | 01:00 PM
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Ground wire location

Trying to find ground wire location on my 99 f250 super duty with the 5.4 triton I didn't unbolt it myself. Going to be doing the big 3 upgrade soon and would like to use the factory ground spots. Thanks in advance!
 
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Old Apr 12, 2017 | 01:31 PM
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On one of my previous vehicles, this ground wire went to the engine bay light mounted to the hood. Might check that.

Your ground wire appears very long, so maybe the light is higher up the hood?
 
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Old Apr 12, 2017 | 02:34 PM
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Originally Posted by Braggs
On one of my previous vehicles, this ground wire went to the engine bay light mounted to the hood. Might check that.

Your ground wire appears very long, so maybe the light is higher up the hood?
Hmm this wire isn't long enough to reach. How important is it?
 
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Old Apr 12, 2017 | 03:53 PM
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According to the only image I could find online that shows this wire, it heads towards the passenger side exhaust manifold.

 
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Old Apr 12, 2017 | 03:59 PM
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Here's another I found... kinda vague, but I'm pretty sure that's it.

 
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Old Apr 12, 2017 | 05:58 PM
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Originally Posted by Braggs
Here's another I found... kinda vague, but I'm pretty sure that's it.

that figures. Thank you
 
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Old Apr 12, 2017 | 07:49 PM
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That strap should be bolted to the mount for the transmission dip stick tube. There is a tab on dip stick tube that bolts to block.If you get under truck you will see tab on dip stick.
 
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Old Apr 12, 2017 | 08:25 PM
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Originally Posted by Sully4755
That strap should be bolted to the mount for the transmission dip stick tube. There is a tab on dip stick tube that bolts to block.If you get under truck you will see tab on dip stick.
I'll look at it tomorrow. How important do you think it is to be connected?
 
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Old Apr 12, 2017 | 08:33 PM
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Mine was broke for a while and did not notice any difference. I made a battery cable with 2 lugs and bolted it to firewall and then to engine in a spot that was easily accessible. Do not bolt it to alternator bracket as you will get static in radio.
 
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Old Apr 12, 2017 | 11:10 PM
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That's a bonding cable, although it does carry current. They are 12ga. From the factory they are bolted to the back of the head usually, but any base connection is fine, head, intake, block ....
 
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Old Apr 12, 2017 | 11:32 PM
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Originally Posted by gabriell12123
I'll look at it tomorrow. How important do you think it is to be connected?
If it wasn't important, it wouldn't be there. Loose, corroded, or missing ground straps can cause big $$ trouble. Electricity is "lazy", it always takes the easiest path. If the ground path isn't where it's supposed to be, the juice will go through something else.
 
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Old Apr 13, 2017 | 08:31 AM
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Agreed. It's important.
 
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Old Apr 26, 2017 | 01:29 PM
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Thanks everybody for the feedback! I'll see about bolting to intake
 
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Old Apr 26, 2017 | 02:28 PM
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Back of the head on mine with the ZF6 auto may be different. I missed it when I did my engine swap and caught it when fixing a loose UVCH connection.
 
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Old Apr 1, 2019 | 06:38 PM
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can this strap be bolted to the exhaust manifold?
if so should i remove bolt and attach direct to manifold or can i use a bolt over the current set up?

thanks
same ground strap as original post
 
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