New to the board and just trying to keep my truck running on an island with very few diesel mechanics. been through the standard stuff. Now I have a very loud rattle coming from the alt. / vac pump side of the engine. Increases / decreases with rmp. It's not the main pulley. I did that last month.
Do the vac pumps go bad? How do you change one? Local parts stores here don't stock them and the Chevy dealers on the island are absolutely no help.
Great site, it's getting me inspired to do some upgrades.
Any tips and advise would be greatly appreciated.
Aloha,
Jesse