Check engine light came on had the message read staates catalytic converter defective possibly due to engine misfire or running condition, large vacuum leak, or engine oil leakage into exhaust -value guide seals, piston rings. In the morning when I turn truck on first thing it makes a ticking sound once I begin driving ticking sound disappears I i stio within the first 10-15 miles after I drive off the oil pressure drops and a warning light comes on to check pil pressure. Once truck is warmed up it no longer does this. I have no clue what is going on. Truck runs great. Does anyone have any ideas or has anyone experienced this if so help please!
have the same problem?
Thursday, September 17th, 2009 AT 7:05 PM