My idle has been going crazy for a while and had a diag done. I was told that one of my cylinders is not working but it is getting spark. They think it is injector #2. They wanted to replace both plenum gaskets ($$$$) because of a vacumm leak at the ait intake. Does this make sense?
I've recently been getting a high pitch whining noise that changes along with the RPMs. The noise went away but now I get a rattle.
The Trooeper has 77k miles and ive been pretty good about maintenance. Any ideas???
Nate