1993 Jeep Cherokee knocking noises

1993 JEEP CHEROKEE
15,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DAVIDT99
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  • 1 POST
when i turn my jeep on or drive it, it sounds like it is making a knocking noise like there is a rock in the engine somewhere. took it to machanic and they said they didnt find anything. Do you think it could be a bad lifter?
Jun 20, 2009 at 8:14 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
If it sounds like a knock, I will say the 4.0L does have a natural (slight) knock to it. If it is very loud, I would guess a rod or main bearing on the low end of the engine. A lifter will make more of a ticking sound rather than a knock.
Jun 24, 2009 at 5:21 PM
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