Need help identifying an engine part

Boss_Stangs

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Dec 17, 2021
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Have a 1986 LX V6 3.8L Convertible. Can someone help to identify this part circled in white, please excuse my ignorance.
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Thanks!
 
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91AOD5.0LX

I have a slight sag in my rear
Feb 20, 2021
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I actually don’t see that part on the diagrams. Sorry. I’m positive someone here will know and post very soon so standby but at least the diagrams can be used in the future for other parts.
 

Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
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Not the EGR. You can see it on the opposite side of the intake on the pass side.

Have not ID’ed that particular part yet. Looks like a fuel pressure regulator but Thats the bell looking item in the carb bowl next to the two injectors. The 3.8L was CFI in 1986
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Last edited:

Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
39,707
15,488
224
Massachusetts
Are you sure that is the EGR?

To me, this device looks like the EGR. You can even see the EgR position sensor on top.

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Which looks pretty similar to what the parts sites show as the 3.8 EGR. What the OP has circled looks nothing like the EGR
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7991LXnSHO

wanna catch the space herp
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Sep 1, 2010
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Running spent gas thru is a power loss end of story
Lower combustion temps is a power loss as well
But recirculation only happens at cruise/part throttle, not full throttle.
Again, it does not recirculate gasses at full throttle, so there is no max power loss.

As far power loss at cruising speed, the computer leans it out to mix with the recirculated exhaust gas for less pinging and less retarding of timing. The difference is not measureable with a seat of the pants meter. But as they tune for it at the factory, I believe reports of better running at partial throttle when the EGR functions as intended.
Your info is simply not accurate.
 
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Wayne Waldrep

Before I post a pic, do you have one of yours?
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Apr 14, 2003
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Looks like the line comes from the area going toward the cruise control and the part in question is beside the throttle linkage. Could it be a vacuum reservoir for the cruise? A couple more detailed pics of what it connects to in each end would help. But i like puzzles so....:D