thanks for you help. The pervious owner lives 6 1/2 hours away, but I did call his mechanic and he said he did not know how to repair it nor does he have equipment to test it. It get 24.9 miles per gallon on the road at 55 mph and a/c running. Is it possible to get better mileage than that. the price i was quoted was about $150.00. The timing belt and cam shaft pulleys has to be removed to replace it.