Question about Chevrolet Metro

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I recently changed the alternador belt on a 2001 chevy metro lsi, afterwards whenever i start the car , there is this rattling noise and when i opened the hood to check , to the left of the alternador belts there was something rattling side to side , a friend suggests it may be the water pump. how do i change this. I am waiting on the manual to come through the mail, but in the meantime...

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  • Chevrolet Master
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Water Pump REMOVAL & INSTALLATION Metro

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Remove or disconnect the following:
    • Negative battery cable
    • Air cleaner
    • A/C compressor suction pipe bracket, if equipped
    • Loosen the water pump pulley bolts. Do not remove them at this time
    • Right side lower splash shield
    • A/C compressor drive belt
    • Lower alternator cover plate
    • Water pump/alternator drive belt
    • Crankshaft pulley
    • Water pump pulley
    • Timing belt
    • Dipstick tube
    • Upper alternator bracket from the water pump
    • Water pump and discard the gasket
    To install: Fig. 1: To ensure a tight seal, be sure gasket surfaces are properly prepared - Metro I recently changed the alternador - 7922z704.gif

  4. Clean the gasket mating surfaces thoroughly.
  5. Install or connect the following:
    • Water pump with new gasket. Torque the bolts to 115 inch lbs. (13 Nm).
    • New rubber seals
    • Upper alternator adjusting bracket
    • Oil dipstick tube
    • Timing belt
    • Water pump and crankshaft pulleys. Leave the water pump pulley bolts hand-tight
    • Alternator drive belt
    • Lower alternator cover plate. Torque the bolts to 89 inch lbs. (10 Nm).
    • A/C compressor drive belt, if equipped
    • Right side lower splash shield.
    • Torque the water pump pulley bolts to 18 ft. lbs. (24 Nm).
  6. Adjust the water pump drive belt tension and torque the alternator adjustment bolt to 17 ft. lbs. (23 Nm).
  7. Install or connect the following:
    • A/C compressor suction pipe bracket, if equipped
    • Air cleaner
    • Negative battery cable
  8. Refill the cooling system.
  9. Start the engine and check for leaks, repair if necessary.
Prizm 1.6L ENGINE
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the engine coolant.
  3. Remove or disconnect the following:
    • Negative battery cable and properly support the engine
    • Right side engine mount and support
    • Upper and middle timing belt covers
  4. If equipped with power steering remove the following components:
    • Front transmission mount
    • Radiator fan motor
    • Coolant reservoir
    • Upper radiator hose
  5. Remove or disconnect the following:
    • Crankshaft Position (CKP) sensor electrical connector from the dipstick tube
    • Dipstick tube
    • Engine Coolant Temperature (ECT) sending unit
    • Coolant inlet pipe
    • Water pump and discard the O-ring Fig. 2: Remove the coolant inlet pipe from the block, then the pump - Prizm 7922z705.gif
    To install:
  6. Install or connect the following:
    • New O-ring and Water pump. Torque the bolts to 10 ft. lbs. (14 Nm).
    • Coolant hose to the pump
    • Coolant inlet pipe. Torque the fastener to 11 ft. lbs. (15 Nm).
    • Dipstick tube. Torque the bolt to 89 inch lbs. (10 Nm).
    • ECT sending unit to the dipstick tube
    • Engine wire harness. Torque the bolt to 89 inch lbs. (10 Nm).
    • Radiator fan. Torque the bolts to 52 inch lbs. (6 Nm).
    • Upper radiator hose
    • Coolant reservoir
    • Front transmission mount. Torque the bolt to 47 ft. lbs. (64 Nm).
    • Upper and middle timing belt covers. Torque the bolts to 62 inch lbs. (7 Nm).
    • Right side transmission mount and insulator. Torque the bolt to 47 ft. lbs. (64 Nm).
    • Negative battery cable
  7. Fill the cooling system.
  8. Start the vehicle and check for leaks, repair if necessary.
1.8L ENGINE
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the engine coolant.
  3. Remove or disconnect the following:
    • Negative battery cable
    • Drive belt
    • Right side lower splash shield
    • Water pump and discard the O-ring
    To install:
  4. Install or connect the following:
    • New O-ring and water pump. Torque the bolts to 8 ft. lbs. (11 Nm).
    • Right side lower splash shield
    • Drive belt
    • Negative battery cable
  5. Fill the cooling system.
  6. Start the vehicle and check for leaks, repair if necessary.
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Posted on Jan 02, 2011

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