AIS5 - Preliminary Checks For Lack of Power
^ Key On, Engine Off.
^ Check proper belt tension.
^ Check for throttle linkage binding.
^ Key On, Engine Running.
^ Check engine operating temperature and coolant level in overflow reservoir.
^ Check for vacuum leak (manifold. etc.) and hose routings.
^ Check for proper operation of EGR valve.
^ Check for ignition or exhaust malfunction (Refer to maintenance schedule).
^ Check for brake drag.
^ Check transaxle shift schedule.
^ Are any problems found?
YES -- Service or adjust as necessary. Replace parts as necessary.
NO -- Go to AIS6. AIS6 - Air Filter Check