How does the engine run? If it's not stumbling or surging or losing power on an uphill pull, close the hood and drive on. Some people also lie awake at night and wonder why the water taps in the kitchen sink aren't dripping.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!