preston123
TYF Newbie
- Joined
- Dec 8, 2020
- Posts
- 22
- Reaction score
- 4
I have a 2013 Yukon SLT 2WD 5.3L with 143,800 miles on it. I believe I have what is a lifter tick on the passengers side. AFM is not disabled. I am basing that on a 2002 Tahoe with a 5.3 I had that I knew had a bad lifter. Once the engine warms up you can hear it. The only time you cannot hear it is on the interstate at above 55. All gauges act normal during all driving conditions. It’s just driving terrible. Oil is topped off. Any ideas on what it could be besides a bad lifter or exhaust manifold?