So what does one make of this. My truck (march 27 03) has had rough idle while warm, does not do it while the oil pressure is up(cold) but does it while warm (under 20 psi). The idle fluctuates up to 75 rpm sometimes and I can feel the vibration in my foot while stopped(auto). I can also hear the "pulsing vibration".
Has had all the reflashes, none helped the goofy Vibration at idle.
All injectors are even and within the spec.
New turbo didn't help.
Bone stock, runs well while driving.
Had it in 3 or 4 times...............nothing is wrong, I say bull.
Used Motorcraft, 10w30, 15w40, Texaco 15w40, Amsoil ,15w40, Royal Purple 15w40.... all CI4++ but no change.
Change fuel filters, at or before interval, have 68,000 km on truck
Use stanadyne, and other conditioners to see, and fuel at different stations as well.
No oil leaks (orings, they have been fixed)
Mechanic says no to egr or ebp.
Unplugged egr myself to see.........no difference.
Something is wrong but the super computer says no.
Jon
Has had all the reflashes, none helped the goofy Vibration at idle.
All injectors are even and within the spec.
New turbo didn't help.
Bone stock, runs well while driving.
Had it in 3 or 4 times...............nothing is wrong, I say bull.
Used Motorcraft, 10w30, 15w40, Texaco 15w40, Amsoil ,15w40, Royal Purple 15w40.... all CI4++ but no change.
Change fuel filters, at or before interval, have 68,000 km on truck
Use stanadyne, and other conditioners to see, and fuel at different stations as well.
No oil leaks (orings, they have been fixed)
Mechanic says no to egr or ebp.
Unplugged egr myself to see.........no difference.
Something is wrong but the super computer says no.
Jon
