"The Tick" My experience so far... long
Night before last I went by one of my friends/coworkers house to drop something off and drove the Mustang over there. I wasn't going to stay long so I left it running in the driveway and we were standing there talking about how awesome the car is and everything. And all of a sudden I noticed a tap......... tap.......... tap.. tap.. and so on a inconsistent random tap. So to myself I was like WTF! It isn't as loud as some I have heard online but I could hear it. My friend didn't notice it I don't think. I didn't say anything about it while we were standing there because I was kind of shocked by it. But after I got tuned into the noise. I could hear it across the yard.
I changed my oil at 2200ish miles(8 quarts 5w20 motorcraft semi blend and a motorcraft filter) and it now has 2300 miles on it. I have been all over and under that engine with my telescoping magnet listening. I noticed using my Aeroforce gauge the tapping only occurs after 188' coolant temperature and seemed to get quieter and less persistent if I let the car sit there and idle and let the temp go over 200'. It ticked very noticeably and predictable yesterday going by the temperature gauge.
Obviously I don't know where its coming from. The tap kinda turned into a rattling sound if I ran the RPMs up and down from about 1000-2500rpm but it is hard to get it to rattle consistently and I can't hear it if I rev it over about 2500rpm. So today I ran the car up on the ramps and shook the exhaust around, checked all the clamp bolts and made sure nothing was loose. Looked all under the car and everything looks normal. I started the car up and let it warm up and didn't hear any tick. I was watching the Aeroforce temp gauge waiting for it to start when the temp came up and NO tick until I revved the engine a little and I heard a very very faint tick a couple of times but it was so faint if you didn't know what to listen for you would probably think I was crazy. I let it cool down and started it up a couple times today. I couldn't hear a tick today while idling. But maybe a very faint tick after I rev it. Sometimes it will sometimes it won't.
Also while doing all of this listening I noticed the engine does have a inconsistent bump to it. I don't know if its normal but you can hear it and feel it. You would think it was the exhaust if you didn't put your hand on the engine but it seems the whole engine kind of bumps. I might run it by the dealer eventually and try to compare it to one on the lot if they will let me.
2013 5.0, Black, Auto, Procharger P1SC stg 2, 4.13'' pulley(8 psi), 3'' x pipe, Circle D 3c, Kooks axleback, BMR control arms. 593rwhp