i got my 96 tahoe back today from getting intake gaskets replaced due to a coolant leak.now it has a fludder the first fraction of a second when you goose it.also while driving it occasionally you can feel a slight miss but very faint.the thing is it ran perfect before i took to the shop. anyone on this great bimmer board have any knowledge on such an animal?no cutdowns please,i also own several bimmers. thanks,martin