The engine is too loud?

What exactly do you mean by "the engine is too loud" on your 1996 Toyota RAV4. Is the exhaust loud? - possibly a worn muffler. Is the serpentine belt or one of the driven accessories making more noise than it used to? Is the engine making a loud mechanical noise? If you cannot provide more information than "too loud" then perhaps you will need the help of your local repair shop to help you determine what the cause and cost will be to get your RAV4 back to normal. Please use the following link to find a shop near you - http://repairpal.com/toyota-repair-in-antioch-tennessee.