Unburned fuel entering exhaust system

[Arcticman451955]

I have a 2011 Ford Super Duty. Does anyone know if I can run chains on only the rear tires? Or will if mess with the transfer case or transmission from changing the outside diameter of the tires? Thanks Cleland T.Trickle Kenai,AK

 

[Rick]

Could very well be a bad fuel pressure regulator. Do a search for that on this site and you should find some good info.

Welcome

 

[BrooklynBay]

Welcome to this forum! I agree that it could be the fuel pressure regulator although it could also be an out of spec engine coolant temperature sensor.

 

[Arcticman451955]

1993 Police Interceptor

Does anyone know why my 1993 Explorerer get wat to much fuel and burns black smoke ? Thanks Cleland T.Trickle Kenai,AK