1999 GMC Suburban 2500 Q&A

1999 GMC Suburban 2500 Question: why is the engine ticking

why is the engine ticking each time I start it? -
Answer 1
valve lifters are not holding pressure when sitting for a period of time. try changing the oil and use an additive for lifters and see if that helps before talking about replacing the valve lifters. Roy -
Comment 1
Thank you very much Roy. Do you think it would be good to try a synthetic oil? -