why is the engine ticking on 1999 GMC Suburban 2500

why is the engine ticking each time I start it?

by in Ypsilanti, MI on March 08, 2011
1 answer 1 comment
ANSWER by on March 08, 2011
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
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COMMENT by on March 08, 2011
Thank you very much Roy. Do you think it would be good to try a synthetic oil?