Need help...
#1
Need help...
Okay i bought a 05 cummins last night and the truck has 210k milea and its bone stock engine. When its in park and you rev it up the RPM's go down very slowly so it sounds like when you rev it, it's whining out. Anyone know what this is or could be?? The oil doesn't have diesel in it.
#2
#4
As long as it stays dropping consistanlty then I wouldn't worry about it much- like I said before with all that pressure built it won't drop instantly. There are YouTube videos on injector hang where it'll get stuck above idle which is an issue but doesn't sound like your situation- those injectors been replaced yet?