This all started this morning....
Leaving for school this afternoon, on a cold engine, I get about a quarter of a mile away from home, and my engine starts to tap, very noticeable, but not terribly loud. It increases with RPM, decreases with less RPM, but always would be noticeable. Pulled over, popped the hood, and it sounds like its right underneath the valve cover around cyl 2. Im assuming its lifter tap. Start down the road again, and i am idling at a light, and just like a switch, its gone. Never came back.
After class it was tapping, suddenly stop after 5 or so minutes like before, but now, it fades back in for a minute or so, and suddenly stop again. It did this about 3 cycles, and never came back for the rest of the 7 mile trip.
I have been searching for lifter tap, and nobody mentions it SUDDENLY stops ticking like mine does. It sounds like a common characteristic for lifter tap, but i am wondering why it suddenly goes away. If it is lifter tap, is it something a quart or 2 of MMO can't fix?
Thanks.
Leaving for school this afternoon, on a cold engine, I get about a quarter of a mile away from home, and my engine starts to tap, very noticeable, but not terribly loud. It increases with RPM, decreases with less RPM, but always would be noticeable. Pulled over, popped the hood, and it sounds like its right underneath the valve cover around cyl 2. Im assuming its lifter tap. Start down the road again, and i am idling at a light, and just like a switch, its gone. Never came back.
After class it was tapping, suddenly stop after 5 or so minutes like before, but now, it fades back in for a minute or so, and suddenly stop again. It did this about 3 cycles, and never came back for the rest of the 7 mile trip.
I have been searching for lifter tap, and nobody mentions it SUDDENLY stops ticking like mine does. It sounds like a common characteristic for lifter tap, but i am wondering why it suddenly goes away. If it is lifter tap, is it something a quart or 2 of MMO can't fix?
Thanks.