Yes they can. They get very dirty from all the build up that they get.
It could be clogged injuectors, dirty intake, etc.
Take off the intake hase at the throttle body and see how dirty it looks inside.
You can clean an EGR, most people just buy one.
You can clean it with brake cleaner and some work.
Run 2 cans of SEA FOAM or BG44K and then change the oil. The stuff works so good it ends up making the oil dirty from all the deposits it cleans out.
Friday, August 26th, 2011 AT 10:45 PM