TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download

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2-19 TB 9-2320-335-13&P Replace the serpentine belt (para. 3-81.2). Listen for noisy bearings in the water pump, or an in-and-out motion to the fan. You can also check the pump and pulley by trying to move it in and out or laterally with the engine off. Replace the water pump pulley (TM 9-2320-387-24-1). Replace the water pump (TM 9-2320-387-24-1).