Base Engine Misfire with Abnormal Valve Train Noise (LDK, LHU)
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Base Engine Misfire with Abnormal Valve Train Noise (LDK, LHU)
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Cause
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Correction
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Worn or loose rocker arms
The rocker arm bearing end caps and/or needle bearings should intact within the rocker arm assembly.
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Replace the valve rocker arms, as required.
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Stuck valves
Carbon buildup on the valve stem can cause the valve not to close properly.
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Repair or replace as required.
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Excessively worn or mis-aligned timing chain
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Replace the timing chain and sprockets, as required.
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Worn camshaft lobes
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Replace the camshaft and valve lash adjusters.
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Sticking lifters
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Replace if damaged.
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Malfunctioning camshaft position actuators - improper oil viscosity or contamination.
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