fengfengfeng
Member
- Joined
- Dec 12, 2018
- Posts
- 78
- Reaction score
- 12
- Location
- china hebei tangshan
- Ram Year
- 2016
- Engine
- Hemi 5.7
Brothers, my truck is six years old. From 70000 kilometers, the sound of knocking began. Now it has reached 130000 kilometers. The noise is getting louder. After replacing the exhaust bolt, the idling is quieter and the knocking sound is more prominent. The noise is a little loud before the oil temperature is 90 ℃, and it will become smaller when the oil temperature is high, but it can also be heard when it is quiet. I began to consider replacing the valve lifter and camshaft. Is this problem due to the quality of the hydraulic ejector pin or the design defect? I am worried that the noise will still occur after the replacement after tens of thousands of kilometers. Because I know this problem will eventually lead to cylinder misfire. The service life of trucks is 15 years in China, but I don't want to repair them again in the service life.Should I drive tens of thousands of kilometers to repair it? Now use penzoil 5w20. Replace with red line 5w30 next time.
At present, when the temperature is very low, when started will shake or even misfire. However, it is easy to start it again. There is no fault code.
Occasionally there will be a knock when accelerating rapidly, uphill or when the mds is started. The sound is like that of a manual transmission vehicle with insufficient power. Nothing but occasional noise when driving。
These two problems seem to have lasted from the second year of purchase to now.https://youtu.be/EJXL4EchERU
At present, when the temperature is very low, when started will shake or even misfire. However, it is easy to start it again. There is no fault code.
Occasionally there will be a knock when accelerating rapidly, uphill or when the mds is started. The sound is like that of a manual transmission vehicle with insufficient power. Nothing but occasional noise when driving。
These two problems seem to have lasted from the second year of purchase to now.https://youtu.be/EJXL4EchERU
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