AIS 2 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 at intake manifold 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 transmission shift schedule.

^ Are any problems found?

YES -- Service or adjust as necessary. Replace parts as necessary.

NO -- Go to AIS 4. AIS 4 Vacuum Motor Check