The valve lifters in my 6.0-litre VE Commodore SS have been replaced twice and the camshaft has also been replaced, but it is a still noisy on cold start. What is the problem?
Have an experienced engine mechanic listen to the engine on a cold start to determine where the noise is coming from. They should be able to tell if it is valve lifters, or perhaps piston slap, which is probably what it is.
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