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
COMMENT by on March 08, 2011
Thank you very much Roy. Do you think it would be good to try a synthetic oil?