For those who've had a fuel pump rod or pump make noise, how did it sound? I have this 350 that makes a knocking/ticking sound that is loudest at the fuel pump. At first I wondered if it was a bearing starting to go, or a lifter. But the noise specifically comes from directly at the fuel pump. The other weird part about it is that it only does it when the motor is warmed up. Otherwise the noise is not heard. Once it warms up, the noise appears and stays the same. The "knock" is also consistent with the pumps of fuel that can be seen through the fuel filter. So who else has had this noise before?