Hey everyone. I just had a Walbro TU429 installed a few weeks and 1000 miles ago. The pump has a noisy prime cycle that seems to vary in volume and sound depending on fuel level, temperature and voltage. Sometimes (but not often) when I am parked in the garage, in addition to making the normal whine noise, I hear like a "bark" noise coming from the pump that continues for a couple seconds after the pump stops priming. The fuel pressure must be okay because it starts up fine everytime. The pump is pretty much silent when the engine is running (not the same as the OEM pump that was whining all the time). I would have to put my ear in the wheelwell just to barely be able to hear it. Do I have a real problem with this new pump? I bought it from fuel-pumps.net for $138. It seems to be a real Walbro.