Noisy Lifters Jeep 4.0. Not unusual for a 4.0. You can try a gentle cleaning method that might help and absolutely won't hurt anything. Worn lifter, by far most common, will still be functional under normal conditions and be relatively quiet. The valvetrain noise is half of what it was before. If it continues then there is probably a defective check valve in the lifter. I just bought my jeep and it makes that lifter noise when cold for a few seconds. My 2000 grand cherokee had some loud lifter noise ,so i pulled the valve cover and upon inspection of the rockers and (trunion ). The belief is that the. I think the engines just make more noise than others. The 4.0 is one of the. They can be improved by. Mine made a tapping sound for a month or two then the piston basically exploded, ripping the wrist pin out of the piston. The oil pressure is perfect and the jeep sounds much quieter. My jeep only has 27,000 miles on it. My old tj with the 4.0 had loud lifter noise aswell.
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Mine made a tapping sound for a month or two then the piston basically exploded, ripping the wrist pin out of the piston. The valvetrain noise is half of what it was before. The belief is that the. My 2000 grand cherokee had some loud lifter noise ,so i pulled the valve cover and upon inspection of the rockers and (trunion ). The 4.0 is one of the. My jeep only has 27,000 miles on it. Not unusual for a 4.0. My old tj with the 4.0 had loud lifter noise aswell. If it continues then there is probably a defective check valve in the lifter. I just bought my jeep and it makes that lifter noise when cold for a few seconds.
Jeep 4.0 Lifter noise YouTube
Noisy Lifters Jeep 4.0 Worn lifter, by far most common, will still be functional under normal conditions and be relatively quiet. They can be improved by. My 2000 grand cherokee had some loud lifter noise ,so i pulled the valve cover and upon inspection of the rockers and (trunion ). Not unusual for a 4.0. The valvetrain noise is half of what it was before. I think the engines just make more noise than others. You can try a gentle cleaning method that might help and absolutely won't hurt anything. Mine made a tapping sound for a month or two then the piston basically exploded, ripping the wrist pin out of the piston. My jeep only has 27,000 miles on it. Worn lifter, by far most common, will still be functional under normal conditions and be relatively quiet. If it continues then there is probably a defective check valve in the lifter. Switching back to 10w will quiet your lifters. The oil pressure is perfect and the jeep sounds much quieter. The 4.0 is one of the. My old tj with the 4.0 had loud lifter noise aswell. I just bought my jeep and it makes that lifter noise when cold for a few seconds.
