Chirping Noise Coming From 4.0
03-21-2014, 08:23 AM
#16
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Location: Sellersburg IN
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Year: 1992 1998
Model: Cherokee
Engine: 4.0
The problem is caused by buildup of gunk/sludge/leprechauns inside the lifters preventing the oil from flowing to the pushrod then rockers. The lifters still pump up but the outlet hole to the top is plugged.
Best fix is replace lifters.
I've taken some drastic chemical measures and so far so good, it is getting quieter everyday. I'll be pulling the cover off on Sunday before/during/after an engine flush & oil change. Am hoping to see restored oil flow.
01-20-2022, 01:44 PM
#17
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Join Date: Jan 2022
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Model: Cherokee (XJ)
Correct. They should be covered in oil.
The problem is caused by buildup of gunk/sludge/leprechauns inside the lifters preventing the oil from flowing to the pushrod then rockers. The lifters still pump up but the outlet hole to the top is plugged.
Best fix is replace lifters.
I've taken some drastic chemical measures and so far so good, it is getting quieter everyday. I'll be pulling the cover off on Sunday before/during/after an engine flush & oil change. Am hoping to see restored oil flow.
The problem is caused by buildup of gunk/sludge/leprechauns inside the lifters preventing the oil from flowing to the pushrod then rockers. The lifters still pump up but the outlet hole to the top is plugged.
Best fix is replace lifters.
I've taken some drastic chemical measures and so far so good, it is getting quieter everyday. I'll be pulling the cover off on Sunday before/during/after an engine flush & oil change. Am hoping to see restored oil flow.
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