I am picking up an 92 5spd trooper today at a good price. It has 245k on it but it runs strong other than the engine being noisy. It has never been wrecked and the AC works good. This is just going to be something to run back and forth to work until it dies. What should I address on the vehicle as far as maintenance? Anything I can do to quiet the engine down a bit? I was suprised at the power this thing had for as old as it is and the mileage! Any input?