My Alfa 147 1.9 JTD 8v run very well, but...
I have vibrations (inside in cabin) on idle (about 850rpm)... On higher rpm all is OK. I changed all four engine mounts and made reparation of all injectors, but vibrations remain.
I perform engine balancing (release and fix of engine mounts screws when Alfa was in idle) and think that problem is gone, but vibrations appear again...
Besides, I have rough engine work in start and acceleration.
What is the problem?
I have vibrations (inside in cabin) on idle (about 850rpm)... On higher rpm all is OK. I changed all four engine mounts and made reparation of all injectors, but vibrations remain.
I perform engine balancing (release and fix of engine mounts screws when Alfa was in idle) and think that problem is gone, but vibrations appear again...
Besides, I have rough engine work in start and acceleration.
What is the problem?