I have a noise on my D2 that sounds exactly like a bad idler bearing, but isn't, because I just put in new ones this morning, plus tensioner, and it's still there.
It starts after a few minutes of driving (after things are warm), and can only be heard above 2k RPM. It gets louder and higher pitch with higher engine RPM. It sounds like it's coming from the right side of the engine, maybe around the rear end, or near the trans/TC. It has a remarkably similar tone to the HVAC fan rubbing on it's housing, but it keeps going after turning off the HVAC/radio.
It's slowly getting worse, but it's been a couple hundred miles already. Any guesses while I wait for it to get obvious enough to find?
It starts after a few minutes of driving (after things are warm), and can only be heard above 2k RPM. It gets louder and higher pitch with higher engine RPM. It sounds like it's coming from the right side of the engine, maybe around the rear end, or near the trans/TC. It has a remarkably similar tone to the HVAC fan rubbing on it's housing, but it keeps going after turning off the HVAC/radio.
It's slowly getting worse, but it's been a couple hundred miles already. Any guesses while I wait for it to get obvious enough to find?