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.
I have an 8.1L engine and I keep the OBDII sensor hooked up at all times to monitor certain engine functions. At idle my oil pressure is running 19-21psi and at 2200 rpm cruise down the highway 44-46 psi.
Like any other component, I guess the oil pump could have failed but I think I would get a second opinion.
I should add that if the OP has the Actia dash on his coach they can be programmed to give you the oil pressure at all times.
