Need some advise here. My '95 NAS D90 is not starting. New Optima battery was put in a couple of months ago and vehicle started up like a champ and drove it around NYC many times. A couple of weeks ago, I took it to the car wash to have it washed and have the annoying salt removed. Took it back to the covered garage in NYC. Last Saturday, I tried to start it but engine is not turning. The new battery is cranking but the engine wouldn't turn. A friend says the alternator needs to be replaced while another says to check for water in areas like the distributor cap, fuel carb etc.etc and maybe fuel or maybe loose belt. Looking for advise or suggestions before calling AAA to have it towed to mechanic.