markjrs3
NAXJA Forum User
- Location
- Rhode Island
Hi all, after poring over old threads I decided to just describe my issue in full so someone might help me diagnose.
What I had previously assumed was something related to lifter or valve noise a guy at a shop described as a knock. I wanted to give you a quick description so maybe I can shine some light on it. I'm possibly selling this shortly, and wanted full disclosure now that this has been brought up.
2000 XJ, 4.0, Automatic, 227k
History: Cracked head from overheat prior to owning, replaced with Clearwater head, new lifters. Oil pressure is good and consistent. No starting issues, no power issues, everything seems to be great.
Sound: Loud, but not overwhelming tapping at low RPM under load while cold. In cold weather much more prominent (obviously?). In rhythm with engine RPM. Once the Jeep is fully up to temp it's nearly gone though possibly just subtle enough to blend in with normal engine noise. This has been the case for approx 2 years since the head was replaced. I don't drive it often at all, at most a few thousand miles in the past year or so.
Thoughts?
What I had previously assumed was something related to lifter or valve noise a guy at a shop described as a knock. I wanted to give you a quick description so maybe I can shine some light on it. I'm possibly selling this shortly, and wanted full disclosure now that this has been brought up.
2000 XJ, 4.0, Automatic, 227k
History: Cracked head from overheat prior to owning, replaced with Clearwater head, new lifters. Oil pressure is good and consistent. No starting issues, no power issues, everything seems to be great.
Sound: Loud, but not overwhelming tapping at low RPM under load while cold. In cold weather much more prominent (obviously?). In rhythm with engine RPM. Once the Jeep is fully up to temp it's nearly gone though possibly just subtle enough to blend in with normal engine noise. This has been the case for approx 2 years since the head was replaced. I don't drive it often at all, at most a few thousand miles in the past year or so.
Thoughts?
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