Base Engine Misfire with Abnormal Valve Train Noise

WARNING: This page is about a different variant/trim than selected.

Cause	Correction
Worn or loose rocker arms-the rocker arm bearing end caps and/or needle bearings should intact within the rocker arm assembly.	Replace the valve rocker arms as required.
Worn or bent pushrods	Replace the pushrods.
Stuck valves-carbon buildup on the valve stem can cause the valve not to close properly.	Repair or replace as required.
Excessively worn or mis-aligned timing chain	Replace the timing chain and sprockets as required.
Worn camshaft lobes	Replace the camshaft and valve lifters.
Sticking lifters	Replace as required.
Excessive engine oil pressure	Perform an oil pressure diagnosis. Refer to Oil Pressure Diagnosis and Testing .