ACTIVE EXHAUST CHANGING BY ITSELF

[Crusch84]

My 2018 GT Performance Pack is changing exhaust modes on it's own. I noticed first when I was driving with the exhaust in track mode and I was in normal drive mode. So I tried putting it in track drive mode and the exhaust changed to normal again. It's done this a couple times now but isn't always doing it. It will usually take a couple minutes for it to change. Any help is Appreciated thanks

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[Cobra Jet]

Check the harnesses at the mufflers for damage to the wire casings or conduit.

There was another thread on here recently where another member had AE issues. The Dealership he went to installed revised harnesses at the mufflers. These would be the short harnesses.

Apparently the original harnesses don’t fare well with heat or road debris in that region. When the original harnesses deteriorate, it causes a ground short.

The revised harnesses have a corrugated aluminum sheathing on them now. That prevents any premature deterioration of the wire casings and possibility of shorts.

Found it; see this thread with pics:
https://www.mustang6g.com/forums/threads/active-exhaust-problems-fixed.128680/

 

[Crusch84]

Check the harnesses at the mufflers for damage to the wire casings or conduit.

There was another thread on here recently where another member had AE issues. The Dealership he went to installed revised harnesses at the mufflers. These would be the short harnesses.

Apparently the original harnesses don’t fare well with heat or road debris in that region. When the original harnesses deteriorate, it causes a ground short.

The revised harnesses have a corrugated aluminum sheathing on them now. That prevents any premature deterioration of the wire casings and possibility of shorts.

Found it; see this thread with pics:
https://www.mustang6g.com/forums/threads/active-exhaust-problems-fixed.128680/

 

[Crusch84]

I appreciate the info I'll look into it thank you

 

[Jetnoise]

Maybe you changing the drive mode had something to do with it.

 

[Crusch84]

Update... I found the problem.. the passenger side actuator plug wires got hot and melted the insulation

 

[Cobra Jet]

Update... I found the problem.. the passenger side actuator plug wires got hot and melted the insulation

Ooooo yea.... THAT will do it!

I don’t know why Ford made those harnesses so short there or never attempted to tie them up further away from the mufflers...

That’s what most of the AE functionality issues are related to also... deteriorated wires, connectors or both.

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