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wally
Well-Known Member
I think maybe my EGR valve is still dirty as I have the same problem with surging, especially holding steady around 35 to 40mph with the air on and just replaced my DPFE the other day also. Seafoam didn't fix that problem but took care of the sparkknock?/Tick I had. I still have the original EGR valve at 185K so might be worth just replacing it rather than trying to clean it.
let me know if the seafoam takes care off your surging, I may run another half a bottle through mine if it does.
let me know if the seafoam takes care off your surging, I may run another half a bottle through mine if it does.
