Lifter noise could be dirty oil stopping up lifters orifice holes where engine need oil and filter change, oil could be too thick or too thin if oil has antifreeze in it due to leaking intake manifold that will dilute engine oil.if engine oil has already been changed lifters could be worn out.check oil pressure.
Need to check the oil pump pressure or if there is a lag in pressure. You need to check if the oil lamp lights up soon after starting and if so the pressrure can be low. Also check the quality of oil , change the oil if this was not done for a long time.
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Lifter noise could be dirty oil stopping up lifters orifice holes where engine need oil and filter change, oil could be too thick or too thin if oil has antifreeze in it due to leaking intake manifold that will dilute engine oil.if engine oil has already been changed lifters could be worn out.check oil pressure.
Need to check the oil pump pressure or if there is a lag in pressure. You need to check if the oil lamp lights up soon after starting and if so the pressrure can be low. Also check the quality of oil , change the oil if this was not done for a long time.