as title, i have a friend with an x reg astra g with the 1.4 16v engine, only covered 20k miles!
and it has developed what we belive to be a sticky valve on cylinder 3, it is intermittent.
when it occurs the EM light flashes and records a misfire on cylinder 3
engine also runs lumpy during this.
can the valve be fixed? what generally causes a sticking valve-i.e. can he expect some more to stick?
he has tried using a thinner oil but didnt want to pay vauxhalls estimated £800 to take the head off and "have a look!"
thanks in advance