[Jcj92]

Hey guys. So I have an 89 XLT that I recently acquired and am going through the wiring and connecting everything and noticed this orange ground looking wire. I was wondering where a good place to ground this would be? Thanks.

 

[MS88Bronc]

Where’s the other end of it, firewall? A good place could be at the top of the support brace for the upper intake plenum.

 

[Jcj92]

Where’s the other end of it, firewall? A good place could be at the top of the support brace for the upper intake plenum.

So it looks like it’s a one sided thing. I know that on my 88 I had a HEGO orange ground wire that came straight out of the computer so I’m assuming that this is the same only this one faces the front of the engine. The other one I mounted on the firewall but this one is facing the other direction. I was thinking somewhere on the lower intake. Just wasn’t sure if that’s a good enough material to ground to?

 

[MS88Bronc]

It should be. You could also ground it possibly to a water pump stud, valve cover stud, probably doesn’t matter much where it goes, so long as the contact is clean.

 

[Jcj92]

It should be. You could also ground it possibly to a water pump stud, valve cover stud, probably doesn’t matter much where it goes, so long as the contact is clean.

Awesome thank you. Appreciate it.

 

[miesk5]

Yo Jcj92,
As MS88Bronc advised and after cleaning rhe ring terminal;
Firewall, inner fender liner as the starter relay uses for the ground, etc.

 

[slimpartywagon]

That wire in your hand goes to a stud that holds the right hand injector wiring harness. In your picture it’s at the 9 O-Clock position of the circle you drew touching the red line.

 

[Jcj92]

That wire in your hand goes to a stud that holds the right hand injector wiring harness. In your picture it’s at the 9 O-Clock position of the circle you drew touching the red line.

it’s not this is it?

 

[slimpartywagon]

it’s not this is it? View attachment 182861

No, I was talking about the yellow that I circled in the picture above. That part mounts to the valve covers with 2 studs. The wire in your hand is sandwiched between the securing nut and another one above it. I don’t see the studs in your pictures

 

[Jcj92]

View attachment 182863
No, I was talking about the yellow that I circled in the picture above. That part mounts to the valve covers with 2 studs. The wire in your hand is sandwiched between the securing nut and another one above it. I don’t see the studs in your pictures

Ooh gotcha. Didn’t even realize that. Thank you 👍🏻

 

[slimpartywagon]

Ooh gotcha. Didn’t even realize that. Thank you 👍🏻

You’re welcome.

 

[miesk5]

Yo Jcj92,
Here are the 1989 Ford Bronco EVTM, Emissions (yellowish/red book cover) & Pre-Delivery Manuals, Partial via mrnewland1 in Google Drive @
1989 Service manual - Google Drive
Slow scrolling, so download for faster viewing and to see the table of contents, the search feature, etc.

Haynes Red Manual for 80-95 Bronco & F Series @ Hanes guide 80-96 bko f series.pdf found by BroncMom

1989 Ford Bronco Dealer Brochure

1989 Bronco Lubricant Specifications by Ford via Gary