I’ve got an MAN and I’ve heard a lot if people that have had injectors go and have been told if one goes its best practice to replace them all. However, injectors for an MAN are approx £600 quid so it’s a very costly exercise! There was an MAN local to me on an 09 plate with 280,000km waiting for a full set off injectors! Not good!
xfmatt:
I’ve got an MAN and I’ve heard a lot if people that have had injectors go and have been told if one goes its best practice to replace them all. However, injectors for an MAN are approx £600 quid so it’s a very costly exercise! There was an MAN local to me on an 09 plate with 280,000km waiting for a full set off injectors! Not good!
You may have a MAN with COMMON RAIL injection system,instead of unit injectors.
In a common rail system one faulty injector sometimes “kill” the others,mainly if you have a too high fuel flow return (means
it is not injecting to the combustion chamber,just return the fuel to tanks).
Silver_Surfer:
Does EGR effect the life of injectors?
The EGR valve is refrigerated by coolant.
If you have an internal leakage the result is coolant inside the inlet manifold and combustion chamber.
So yes,sometimes it may result in reduced injectors life.
I read somewhere that this is one expected failure for SCANIA\with EGR that goes to East Europe,the higher
sulfur level in that fuel is no good for any EGR at all.