I wonder anyone has experienced idle hunting problem with 1990 20V 90Q !
My 90Q hunts at idle (mainly when engine is cool). One dealer suggested
that's the way they are - referring to all 1990 models. Another one
suggested giving the idle valve a "bang", or taking the idle valve apart
and lubricate it. Is this a user friendly operation ?
Solomon Ngan 1990 90Q 20V
1984 5000S