We had the overhead cam/crankshaft, timing belt replacement kit, water pump, and all drive belts, oil pan gasket replaced at 120,000 miles just to make sure the car remained running strong. After these repairs were done, it began overheating, and starting a clicking noise, running rough. When I opened the hood I found there was almost no coolant in the resevoir, oil dip showed extremely low, and a spark plug cap was popped out and oil on crank cover. Dealership I believe screwed something up and are doing a compression test. Could there now be a blown engine because of something not done right?