1993 Accord: Intermittenly a slight whining noise comes from the engine compartment, this noise lasts for approx 1-2 seconds and only occurs after the accelerator has been depressed, never has happened when accelerating. Did a little reseraching and found a technical service bulletin that suggested this might be the water pump shaft and can be fixed by adding some water pump shaft lubricant to the cooling system. Has anyone had this type of problem? If so, how was it fixed? Thank you all in advance for your wonderful insight. Steve