Question about 2005 Chevrolet Impala

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I took my car to get a regular oil change and they end up telling me that i need a new water pump, belt tensioner, and a fan belt & coolant service? my car is a 2005 chevy impala with about 1300,000 miles.

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  • Master
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If the fan belt has cracks or cuts in it then I would buy a replacement and replace it my self. As far as the other items I would not worry. The belt tensor keeps tension on the belts, as long as the belts are tight and it is rolling smoothly it is good. The water pump has a weep hole and keeps the engine from overheating. Your coolant should look clean, not rusty. If it is rusty then you can buy some radiator flush and flush it out and premix coolant which is cheaper then what someone would charge you. Hope this helps tim

Posted on Sep 02, 2010

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  • Chevrolet Master
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If the pump is noisy or leaking coolant then you need to replace it.
If you haven't had an overheating problem or the engine isn't running hot, unless they are recommending you do those things as preventative maintenance, there is no real reason do do that work.
You posted that you have one million, three hundred thousand miles...Is that right?????

Posted on Sep 02, 2010

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  • Expert
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Maybe they are right but most oil change shops try talking customers into things they don't need for commission and trained to do so. If you truly believe you have a problem then take to a real garage. Most of those guys can barely succeed changing the oil.

Posted on Sep 02, 2010

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The water pump is not working how to fix it


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Help! I'm stuck and stumped. 2001 Beetle GLS 2.0 - Two weeks ago the car was overheating quickly, red temperature light flashing and beeping. I changed the thermostat, flushed the radiator and filled it...


SOUND LIKE COOLANT FANS HAS A FAULTY THERMO SWITCH LOCATED AT THE BOTTOM OF THE RADIATOR ON LEFT HAND SIDE.CHECK THE FUSES 8 IN THE ENGINE COMPARTMENT AND CHECK FUSE 16 IN THE PASSENGER COMPARTMENT FUSE BOX.WHEN ENGINE OVERHEATING IF BOTH COOLING FANS WORKING.OVERHEATING PROBLEM COULD BE BLOWN HEAD GASKET.CHECK ENGINE OIL LOOKS LIKE MILK HEAD GASKET LEAKING.SEE WHEN YOU DRIVING LOW AND HIGH SPEEDS THE COOLING FANS SUPPOSE TO BE RUNNING.IF THEY NOT RUNNING THAT IS YOUR OVER HEATING PROBLEM.

Feb 02, 2011 | 2001 Volkswagen Beetle

1 Answer

Replacing water pump


This is for the 3.9 v6 you did not specify motor size.
Hope this helps, it it does please leave feedback Thank You and Good Luck


The water pump can be removed and installed without discharging the air conditioning system (if equipped).
  1. Disconnect battery negative cable.
  2. Drain cooling system.
  3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094). SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.

CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.


  1. Remove upper radiator hose clamp and hose at radiator.
Fan Blade And Viscous Fan Drive-3.9L/5.2L/5.9L Engines 81898572


  1. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
  2. If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
  3. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top).
  4. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
  5. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
  6. Do not remove water pump pulley bolts at this time.
Automatic Belt Tensioner Assembly-3.9L/5.2L/5.9L Engines 81898573


  1. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front). When all belt tension has been relaxed, remove accessory drive belt.
  2. Remove four water pump pulley-to-water pump hub bolts and remove pulley from vehicle.
  3. Remove lower radiator hose clamp and remove lower hose at water pump.
  4. Remove heater hose clamp and heater hose from heater hose coolant return tube.
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  1. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump. Discard the old tube O-ring.
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  1. Remove seven water pump mounting bolts.
  2. Loosen clamp at water pump end of bypass hose. Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket.
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.


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Jan 01, 2011 | 1999 Dodge Durango

1 Answer

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Begin by cleaning the area around the timing belt upper cover.
Remove the upper cover.
Remove the drivebelts on all accessory components.
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Remove the lower bellhousing cover at the rear of the engine.
Turn the crankshaft to bring the engine to Number 1 cylinder, TDC, firing. The timing marks will align when this is done.
Remove the crankshaft sprocket bolt. It may be very tight, and clearance is quite limited. Take care not to move the crankshaft from its set position.
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Replace all oil seals that leak, are weak or missing. Oil will ruin the new timing belt.
Installation is essentially a reversal of removal, after the tensioner is replaced and unlocked, spin the crankshaft sprocket two complete turns, noting if the timing is correct by way of the pointers aligning with the marks in the rear timing cover. Push down on the belt to ensure it seats correctly. Tighten the tensioner to the specified torque.
Install the cover, rear bellhousing cover (if removal was necessary) and nuts. Screw the backplate onto the front timing cover.
Install the fan and fan shroud.
Refill the coolant if the water pump was changed.
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1 Answer

2006 dodge dakota water pump replacement instructions 3.7L


The water pump can be removed and installed without discharging the air conditioning system (if equipped).

  1. Disconnect battery negative cable.
  2. Drain cooling system. Refer to Draining and Filling found under Cooling System, Service and Repair.
  3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094). SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS. CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
  4. Remove upper radiator hose clamp and hose at radiator.
  5. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
  6. 6. If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
  7. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top).
  8. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
  9. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
  10. Do not remove water pump pulley bolts at this time.
  11. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front). When all belt tension has been relaxed, remove accessory drive belt.
  12. 12. Remove four water pump pulley-to-water pump hub bolts and remove pulley from vehicle.
  13. Remove lower radiator hose clamp and remove lower hose at water pump.
  14. Remove heater hose clamp and heater hose from heater hose coolant return tube.
  15. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump. Discard the old tube O-ring.
  16. Remove seven water pump mounting bolts.
  17. Loosen clamp at water pump end of bypass hose. Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket. CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.

INSTALLATION

  1. Clean gasket mating surfaces.
  2. Using a new gasket, install water pump to engine as follows: Guide water pump nipple into bypass hose as pump is being installed. Install water pump bolts. Tighten water pump mounting bolts to 40 Nm (30 ft. lbs.) torque.
  3. Position bypass hose clamp to bypass hose.
  4. Spin water pump to be sure that pump impeller does not rub against timing chain case/cover.
  5. Install a new O-ring to the heater hose coolant return tube. Coat the new O-ring with antifreeze before installation.
  6. Install coolant return tube and its mounting bolt to engine. Be sure the slot in tube bracket is bottomed to mounting bolt. This will properly position return tube.
  7. Connect radiator lower hose to water pump.
  8. Connect heater hose and hose clamp to coolant return tube.
  9. Install water pump pulley. Tighten bolts to 27 Nm (20 ft. lbs.) torque. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating.
  10. Relax tension from belt tensioner. Install accessory drive belt.
  11. CAUTION: When installing the serpentine accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. Refer to Illustration above for correct belt routing. The correct belt with correct length must be used.
  12. Position fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit.
  13. Install fan shroud.
  14. Install fan blade/viscous fan drive assembly to water pump shaft.
  15. Fill cooling system.
  16. Connect battery negative cable.
  17. Start and warm the engine. Check for leaks.

Feb 28, 2010 | 2006 Dodge Dakota

1 Answer

Still want to shoot into a thermal runaway.


First of try to understand exactly what part you mention exactly how they work or function
  1. please place a new low speed relay as it try to make out thermal heating cool at it's initial 1st stage level of heating so that the temperature remain maintain if thus it reaches the second level of heating then the high speed relay act at that time & the speed of radiator fan increase to get thermal heating in control.
  2. the thermostat regulate the heating temperature of the engine it senses the temperature & signal to the relay the relay then react according to the temperature level of engine at low heating it operate the low speed relay & high temperature it signal to high speed relay so the engine temperature does not rise to extended level of heating or overheating.
  3. see for thermostat valve is failure if that so replace it new sometime most of the mechanic change it or cancel it so that the temperature does not rise as this thermostat help engine maintain it's ideal temperature which is required by the engine for regular or good working even at extreme climatic condition.
  4. Do check for every tensioner or Ideal Bearing as far consider on the No. of miles or Km the vehicle has run according to us the tensioner or ideal bearing are suppose to be replace at an interval of 30000 to 35000 Km. but this replacement include both Engine timing belt & tensioner & ideal tensioner bearing.
  5. A water pump flow depend on the tension of the drive belt some vehicle come with water pump which drive on inner timing belt tension & some on the fan belt or external tension belt of engine.
for further more FAQ do send in or place your problem we will sort it out till then have a safe drive & happy motoring from siddhanth.....!

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1 Answer

I need directions to change my water pump


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Jun 01, 2009 | 1999 GMC Jimmy

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