Question about 2002 Pontiac Grand Prix

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Leaking coolant by the alternator bracket

Leaking around a little black tube, is there a oring to replace and what kind of job is this to replace?

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Yes there is an "O" ring in there. However that plastc tube always breaks or cracks. You can get that tube kit from your local parts store. Remove the serpentine belt and pwr steer pump, The pump has three bolts accessed through the pwr steer pump pully you will see the holes in the pully to get to bolts DO NOT REMOVE HOSES. Now give the pump gentle persuasion uppward, but it will come, make sure the back of the pump isn't obstructed by the fuel rail you will see what I mean when you look at it. Remove all other parts in your way, hoses etc., be gental. When you remove the tubes note where each end goes the "O" rings have different colors 1 is redish orange & the other is purple this should give you an idea what goes where. Just remember to bleed coolant system of air when done. There's a metal tube in front that goes under upper motor mounts, it has bleeders at each end. Jobs not hard just requires time and patience. Oh, add a little permatex (black) around "O" rings when installing for added security, just push in firmly these are fragile. You might have to remove coolant reservoir bottle as well if it's in your way.

Posted on Mar 18, 2009

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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
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    • Loosen the water pump pulley bolts. Do not remove them at this time
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    To install: Fig. 1: To ensure a tight seal, be sure gasket surfaces are properly prepared - Metro 7922z704.gif

  4. Clean the gasket mating surfaces thoroughly.
  5. Install or connect the following:
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  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:
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    • Air cleaner
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  8. Refill the cooling system.
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  6. Install or connect the following:
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