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MAJOR issue methinks...20 miles of rattling and no start now...
So yeah, I think I'm in for some major repairs, but seeing if the community can help me think of what it might be so I know how much to brace myself (and how much whiskey I need to have on hand)...
2007 Mazda 6i 2.3L 4-cyl. 90k miles.
In the past 5-6 months or so, I've had that strange ticking that happens just around 2.5k RPMs, but my mechanically inclined friends and family have advised me that it's not a bad tick, nothing to worry about.
I recently went on a 120-mile drive to a family Christmas party and noticed the ticking getting more noticeable, and a broader stretch of RPMs to create the noise. Then, about 20 miles out, major knocking. To me, sounded like misaligned lifters and/or piston knock, but there was a noticeable grinding sound too, not too loud, I had to have the hood open with the car running in park to hear it. Kinda sandpaper-y sound.
My mechanic relatives heard the knocking and started guessing what it might be...rod knock, piston knock, lifter misalignment, etc., and then I turned the car off and went back to the party. 3 hours later when I tried to start it up (and take it to a nearby mechanic shop), it started, the knock persisted, then my car stopped running. Tried the key again, and I got what sounded like a little bit of cranking then nothing.
I expect the worst, and hope for only some small minor issue. 90k miles is a drop in the bucket for a 2007 car, and I assumed this engine would have more life in it. I've been good about oil changes, and never had any Check Engine lights, low oil, or anything. I think the only awry thing was at about 50k miles when the coolant levels were low.
Any guesses? Anyone experience the same thing? Any advice would be appreciated....