My 2007 Honda Odyssey makes a grinding/whining noise only when the gas pedal is depressed while the van is moving. At idle in driveway I cannot duplicate the noise and while moving and I take the foot off the gas, the noise goes away immediatly. I did have the timing belt and water pump replaced recently - could that have anything to do with it? Any help would be appreciated. Other than the noise, the van runs great - smooth and no vibrations!