Bird Freak wrote:
I would go ahead and replace the mufflers with Monroe stainless ones and be done with it.
I'm trying to figure why you would have needed a oil pump with low mileage. WH rep that came to my shop during our brake issues told me the 8.1 would get as low as 3 to 6 psi idling while hot. I had a hard time with that one but he swore it was true.
Yes, I was concerned.The problem wasn't just low idle pressure. The oil pressure dropped while on the highway. However more than one service center indicated that the oil pump was a problem on some of those engines. I'm thankful that the problem finally occurred while diagnosing. It was our third attempt.
