Today was the second time I heard this noise, at first I thought it was a fluke being that it happened when I started it up during the first cold-snap since I owned her and it didn't happen again after that one time. But, today after work, I got in and started it it sounded like a bad knock
it lasts for maybe 5-10 secs or so and then it disappeared. It's almost like piston slap but it doesn't happen all the time. It's really starting to worry me. I just went outside to start her up hoping I could get a recording and nothing. purred like a kitten. Should I worry about it or dismiss it because cold engine = weird noises or should I have the dealer look into it?
the problem is that it RARELY happens. this is the 2nd time with all this cold weather that it has done this so I doubt I could repeat the problem if I took it in