I have a 5.3 that has a ticking noise on cold start.Goes away shortly.All else is great no oil usage etc.
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2003 GMC Yukon Question: Is there a simple repair for lifter noise. Or could it be something else.
Answer #1lightsaber April 02, 2014, 08:28Journeyman
At your next oil and oil filter change replace one quart of the engine oil with one quart of marvel's mystery oil. The marvel's is supposed to clean and lubricate the engine internally. If you have a while before your oil change is due, replace the oil filter, and top the oil off with no more than one quart of the marvel's mystery oil. Do follow the instructions on the marvel's back label.