Wilkins
Veteran Member
I have been driving with a P047F (exhaust valve stuck open) for a little while now. I have not fixed it because I really don't miss the NOx regens and since I am planning to get the fix applied in the near future I am hoping any issues that develop as a result of ignoring the code will be resolved or covered going forward. Relying on hope isn't really rational when dealing with mechanical things so the question I have is if anyone can shed light on issues that result from operating the car longer term with the exhaust valve stuck open? Am I really running a risk of having to pay for more expensive repairs when the fix is applied? I'm not talking about the valve itself since I can pull that and free it up on the bench. I've already done it once about a year ago.
BTW the car runs great and is getting about the same mileage as my BEW. About 42 usgpm on my suburban commute (60 F) and over 45 on a couple of highway tanks not driven slowly. That is at least 2 mpg better than without the P047F.
BTW the car runs great and is getting about the same mileage as my BEW. About 42 usgpm on my suburban commute (60 F) and over 45 on a couple of highway tanks not driven slowly. That is at least 2 mpg better than without the P047F.