Download WATER PUMP DRIVE BELT 1. Verify that the water pump drive belt auto tensioner indicator mark does not exceeds the limit. ? If it exceeds the limit, replace the water pump drive belt. (See WATER PUMP DRIVE BELT .) Fig. 21: Water Pump Drive Belt Auto Tensioner Limit Indicator Mark – Malfunction/Worn Belt WATER PUMP DRIVE BELT 1. Remove the plug hole plate. 2. Rotate the water pump drive belt auto tensioner counterclockwise to release the drive belt tension and remove the water pump drive belt. Fig. 23: Locating Water Pump Drive Belt Auto Tensioner 3. Reinstall the water pump drive belt or install a new water pump drive belt. WATER PUMP DRIVE BELT PULLEY REMOVAL NOTE 1. Replace part A of the SST [303-009 (49 UN30 3009)] with the SST [303-457 (49 UN30 3457)]. Fig. 31: Water Pump Pulley Removal Special Tools 2. Remove the water pump pulley using the SSTs.