Well, its back. Filled up at a different Mobil station today though. But the loud knock is bad at low RPM's. What gives?
I have a CEL, its the usual "IMRC stuck open" so I have a new IMRC ready to go in to replace it, but I've had that CEL for a month or so now and am just now getting this knock.
Should I ditch my Bosch +4 plugs too for some autolites?
I'm really lost, my car sounds like crap. What would cause this knock?
