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BELT TENSIONERS DESCRIPTION The automatic belt tensioner is a spring loaded arm and pulley assembly. The tensioner assembly is designed to OPERATION WARNING: THE AUTOMATIC BELT TENSIONER ASSEMBLY IS SPRING LOADED. DO NOT ATTEMPT TO DIS- The automatic belt tensioner maintains correct belt tension using a coiled spring within the tensioner housing. The If a new belt is being installed, the arrow must be within approximately 3 mm (1/8 in.) of indexing mark. Belt is • The wrong belt being installed (incorrect length/width) • Worn bearings on an engine accessory (A/C compressor, power steering pump, water pump, idler pulley or • A pulley on an engine accessory being loose • Misalignment of an engine accessory • Belt incorrectly routed. REMOVAL 3.7L ENGINE 1. Remove accessory drive belt (Refer to 7 - COOL- ING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL). 2. Remove tensioner assembly (3) from engine front cover. WARNING: BECAUSE OF HIGH SPRING TENSION, 3. Remove pulley bolt. Remove pulley from tensioner. 7 - 26 ACCESSORY DRIVE KJ |