Aronis
July 5th, 2017, 01:03
So my tech thinks my EGR valves are not opening due to inadequate vacuum. But I have not had any codes with other vacuum dependent systems such as waste gates or diverter valves.
Any ideas??
Mike
GreggPDX
July 5th, 2017, 17:47
This sounds like the ongoing issue with low vacuum that you've been dealing with. I don't recall from your other thread, but have you checked/replaced the brake booster pump?
https://www.europaparts.com/brake-booster-vacuum-pump-8e0927317h.html
Maybe you can plumb a cheap vacuum gauge temporarily into the system and try to get a read on what exactly is happening with your vacuum levels.
It's sounds like an intermittent issue with borderline vacuum, which is a tough one to diagnose.