Actually these are very legitimate questions as I have just had some similar experiences the last 24 hours. It is normal for the pump to make a bit of noise in position II of the ignition. That is called "priming the pump" and is completely normal. It is also completely normal for the pump to NOT make that noise once every so often. As for the pump to be buzzing while the car is running; this can vary depending on who you ask. The pump has two lines - main feed and return. The main feed is sending - what - 29 gallons of fuel an hour at 60-70 psi? To say the least - alot of buzzing from that line. The return line makes very little in comparison. To hear a little buzzing is normal - at least to me. If you hear a lot of buzzing - loud to the point that you wonder if bystanders can hear it as you're driving by - or you feel any vibrations in the AC console plate, that is abnormal. Possible causes (in my experiences...this is not a straight and true "only" scenario here): 1. Most probably the main feed line is rubbing up against the underbody of the car, sending the vibrations to the A/C console plate. 2. Also most probably, one of the two fuel hoses is kinked (bent, as if you squeezed a water hose over itself) and the pressure buildup is causing the pump to work harder because it's getting less fuel to circulate through the system. 3. Miscellaneous reasons could be dirty electrical pigtail connections, faulty/failing RPM relay, heat from the weather around you etc etc. Recently on a 150 mile trip back from Monroeville, Al - my pump was buzzing badly to where I could feel it against the A/C console plate.... The steps I took were gaining access to the pump, 1. rerouted the two hoses and made sure they had no bends in them...2. Routed the main feed hose away from the underbody...3. Cleaned my fuel pump filter...4. Cleaned/Di-electric greased my RPM relay connections...5. Jumped the RPM relay and let the pump run for a good two minutes to ensure nothing was sticking in the pump motor..6. Made sure the fuel pump cover/boot was completely tightened and fastened down securely. So far...so good - another 200+ miles today with not a issue. Your questions are completely legitimate and shows you have a desire to learn and understand what's going on. That will partly get you VERY far with understanding how the car works...the other part that will help you is actually doing this kind of stuff...whether it be for practice or when the car breaks. When that is is up to you =P. Jeremiah __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/