mine usually doesn't just do it all by itself......99% it must be induced by reving the engine while not moving. actually my moose moved to a different place on the tach after adjusting the air filter housing.

00 black/tan svt, #2052 of 2150, born 2/1/00 formerly known as my csvt "Nothing in the world is more dangerous than a sincere ignorance and conscientious stupidity." -Martin Luther King, Jr.