Re: Whirring sound after starting up.
Originally Posted by dave5point0
i think mine comes on randomly while i drive.... as in i'll drive for a half hour and pull up at a red light, i'll hear the fan (pump noise) come on and my headlight dim... i'm guessing its not normal????
it's normal. It's the emissions air pump.
Last edited by robby363; Nov 6, 2010 at 04:58 AM.