I have a 99 ford contour with 120,000 miles. I inherited the car from my mother. Last week i was driving and the belt broke. I was going about 45 mph and just starting up hill. I called several different repair shops to get it fixed. All of them asked for the engine size. It is a 4 cylinder 2.0 engine. After telling them that i was advised that it is a non-interfiron engine and just the belt would need to be replaced. After having the car towed to their shop, now they're saying that the valve stems were bent and needed to be replaced and it would be cheaper to replace the engine! I dont believe them if three repair shops said it was a non-interfiron engine. Is there anyway I can find out for sure without taking their word for it?