Hi all, I recently have been experiencing a random lifter tick in the past 2 months.
I bought the truck about a year ago with about 120k on it from a kid. Truck ran fine but since it was overdue for an oil change, any probably many before that, I decided to run MMO in the oil and do a seafoam treatment.
After a couple of MMO oil changes I switched to full syn and have put about 500 miles on it since. I have then had about 4 times where I heard a loud ticking which sounds like a lifter. Half these times, the truck was semi-warm. The sound always went away after a few mins. It is not piston slap. Trust me, I had a 5.3 before this
So, should I resume another MMO treatment or two? The only other vehicle I had with this problem was my '93 Volvo 850 and that was due to bad oil pump pick up o rings......
I bought the truck about a year ago with about 120k on it from a kid. Truck ran fine but since it was overdue for an oil change, any probably many before that, I decided to run MMO in the oil and do a seafoam treatment.
After a couple of MMO oil changes I switched to full syn and have put about 500 miles on it since. I have then had about 4 times where I heard a loud ticking which sounds like a lifter. Half these times, the truck was semi-warm. The sound always went away after a few mins. It is not piston slap. Trust me, I had a 5.3 before this
So, should I resume another MMO treatment or two? The only other vehicle I had with this problem was my '93 Volvo 850 and that was due to bad oil pump pick up o rings......