Mcgyver
Well-Known Member
- Thread starter
- #1
If you have misfire codes on your S550 (‘15 to ‘17) Mustang GT please be aware that the intake manifolds on these cars are prone to failure in the low speed flaps inside the manifold(Manifold Intake Runner Control). The flaps are controlled by vaccum actuators at the rear of the manifold via two skinny square metal shafts. The shafts are prone to snap where they connect to the actuators. These things are ECU controlled and are constantly fluttering about.
Standard Ford diagnosis for these misfire codes is to replace all plugs, coils and injectors before they will even consider checking the manifold. This will cost over $6k before they even get to the problem. (Which is why many refer to them as Stealerships)
The manifold is quite simple to remove yourself whith the only real difficulty coming in removing the electrical connectors on the actuators and the panel pins that hold the cabling to the manifold. I used a set of panel pop pliers. A new manifold is $1,500 and is easy to install. I am now going to Ford for a warranty claim as there is no way such a part should be a wear item on any car.
There is a handy tutorial on YouTube my VPM which shows all steps in detail except of course the difficult bit behind the manifold. (Funny that eh?)
Fell free to contact me if you want any more information.
Standard Ford diagnosis for these misfire codes is to replace all plugs, coils and injectors before they will even consider checking the manifold. This will cost over $6k before they even get to the problem. (Which is why many refer to them as Stealerships)
The manifold is quite simple to remove yourself whith the only real difficulty coming in removing the electrical connectors on the actuators and the panel pins that hold the cabling to the manifold. I used a set of panel pop pliers. A new manifold is $1,500 and is easy to install. I am now going to Ford for a warranty claim as there is no way such a part should be a wear item on any car.
There is a handy tutorial on YouTube my VPM which shows all steps in detail except of course the difficult bit behind the manifold. (Funny that eh?)
Fell free to contact me if you want any more information.
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