I have a 98 s70 with 96k miles on it. I was just informed by the dealer the engine is blown because the belt tensioner failed and the top end of the engine needs to be replaced for an estimated $4K. The car had the t-belt changed at 70K miles. The delaer never mentioned the tensioner before. Help I do not know if i SHOULD PUT $4K INTO A 98 WITH 96k MILES.