Would a bad belt tensioner cause the water pump bearing to fail in less than a week? My nephew thought the belt tensioner moved too easily. We could move it and take the belt off by hand. It seems to run true, no wobble or jumping when car is running. We couldn't find the tensioner on a Sunday so I gambled and used the old tensioner. I also noticed today that the car starts missing at about 3,800 RPM and won't rev beyond 4,000 RPMs. I don't need to rev that far but am worried it may be a sign of a bad head gasket. I noticed a little water coming from the exaust, no sign of water in oil or oil in coolant, yet. Am I getting paranoid?
