Question about 1995 Isuzu Trooper

1 Answer

Vehicle over heats

Mechanic describe it as a hole in the pipe between the last 2 cylinders, that is connected to the radiator system & the heating system. What is the tube & what is the part. What is the cost of the part, & what is the average mechanic fee to replace it?

Please let me know! Thanks, Paul. aulfourie@yahoo.com

I appreciate your help

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If a mechanic says he can replace it id have them go ahead and do so before you mess the engine up letting it overheat...cost isnt going to be that high for the pqart or the labor so let them fix it

Posted on Jan 22, 2009

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1 Answer

Diragram on how to change the water pump on a 1995 z24 cavalier 2.3


Check this procedure, according with the repair guide for...

2.3L and 2.4L Engines
(see Figure 9)
  1. Disconnect the negative battery cable
  2. Detach the oxygen sensor connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for more complete coolant drain.
  4. Remove upper exhaust manifold heat shield.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Remove the lower exhaust manifold heat shield.
  7. Break loose the manifold to exhaust pipe spring loaded bolts using a 13mm box wrench.
  8. Raise and safely support the vehicle.
It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  1. Unfasten the two radiator outlet pipe-to-water pump cover bolts.
  2. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt.
On the 2.4L engines, DO NOT rotate the flex coupling more than 4° or damage may occur.Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  1. Remove the radiator outlet pipe from the oil pan and transaxle. If equipped with a manual transaxle, remove the exhaust manifold brace. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump. Leave the radiator outlet pipe hang.
  2. Carefully lower the vehicle.
  3. Unfasten the exhaust manifold-to-cylinder head retaining nuts, then remove the exhaust manifold, seals and gaskets.
  4. For the 2.4L engine, remove the front timing chain cover and the chain tensioner. For details, please refer to the procedure located later in this section.
  5. Unfasten the water pump-to-cylinder block bolts. Remove the water pump-to-timing chain housing nuts. Remove the water pump and cover mounting bolts and nuts. Remove the water pump and cover as an assembly, then separate the two pieces.

zjlimited_2033.jpg

Fig. 9: Water pump and cover mounting - 2.3L and 2.4L engines (click over image for zoom)

To install:

  1. Thoroughly clean and dry all mounting surfaces, bolts and bolt holes. Using a new gasket, install the water pump to the cover and tighten the bolts finger-tight.
  2. Lubricate the splines of the water pump with clean grease and install the assembly to the engine using new gaskets. Install the mounting bolts and nuts finger-tight.
  3. Lubricate the radiator outlet pipe O-ring with antifreeze and slid the pipe onto the water pump cover. Install the bolts finger-tight.
  4. With all gaps closed, tighten the bolts, in the following sequence, to the proper values:
    1. Pump assembly-to-chain housing nuts-19 ft. lbs. (26 Nm).
    2. Pump cover-to-pump assembly-106 inch lbs. (12 Nm).
    3. Cover-to-block, bottom bolt first-19 ft. lbs. (26 Nm).
    4. Radiator outlet pipe assembly-to-pump cover-125 inch lbs. (14 Nm).
  5. Using new gaskets, install the exhaust manifold. Make sure to following the tightening sequence and torque specifications given in the exhaust manifold procedure located in this section.
  6. Raise and safely support the vehicle.
  7. Index the exhaust manifold bolts into the exhaust pipe flange.
  8. Connect the exhaust pipe to the manifold. Install the exhaust pipe flange bolts evenly and gradually to avoid binding. Turn the bolts in until fully seated.
  9. Connect the radiator outlet pipe to the transaxle and oil pan. Install the exhaust manifold brace, if removed.
  10. On the 2.4L engine, install the timing chain tensioner and front cover.
  11. Install the lower heat shield.
  12. Carefully lower the vehicle.
  13. Fasten the bolt that attaches the exhaust manifold brace to the manifold.
  14. Tighten the manifold-to-exhaust pipe nuts to specification.
  15. Install the upper heat shield.
  16. Attach the oxygen sensor connector.
  17. Fill the radiator with coolant until it comes out the heater hose outlet at the thermostat housing. Then connect the heater hose. Leave the radiator cap off.
  18. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their proper levels, then turn the engine off.
  19. Once the vehicle has cooled, recheck the coolant level.

Hope helps; remember to rating this answer and leave a testimonial comment. Thank you for using FixYa.

Oct 13, 2011 | 1995 Chevrolet Cavalier

1 Answer

WHAT ARE THE TORQUE SPECS FOR A WATER PUMP ON A 2003 CHEVY MALIBU


Water Pump REMOVAL & INSTALLATION CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old. 2.4L Engine
  1. Disconnect the negative battery cable
  2. Detach the Oxygen (O2) sensor electrical connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for a more complete coolant drain.
  4. Remove upper exhaust manifold heat shield.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Remove the lower exhaust manifold heat shield.
  7. Break the manifold-to-exhaust pipe spring loaded bolts loose using a 13mm box wrench.
  8. Raise and safely support the vehicle. NOTE: It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  9. Unfasten the two radiator outlet pipe-to-water pump cover bolts.
  10. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt. NOTE: DO NOT rotate the flex coupling more than 4°or damage may occur.
  11. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  12. Remove the radiator outlet pipe from the oil pan and transaxle. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump. Leave the radiator outlet pipe hang.
  13. Carefully lower the vehicle.
  14. Unfasten the exhaust manifold-to-cylinder head retaining nuts, then remove the exhaust manifold, seals and gaskets.
  15. Remove the front timing chain cover and the chain tensioner. For details, please refer to the procedure located later in this section.
  16. Unfasten the water pump-to-cylinder block bolts. Remove the water pump-to-timing chain housing nuts. Remove the water pump and cover mounting bolts and nuts. Remove the water pump and cover as an assembly, then separate the two pieces. Fig. 1: Water pump and cover mounting - 2.4L engine 87953070.gif
    To install:
  17. Thoroughly clean and dry all mounting surfaces, bolts and bolt holes. Using a new gasket, install the water pump to the cover and tighten the bolts finger-tight.
  18. Lubricate the splines of the water pump with clean grease and install the assembly to the engine using new gaskets. Install the mounting bolts and nuts finger-tight.
  19. Lubricate the radiator outlet pipe O-ring with antifreeze and slide the pipe onto the water pump cover. Install the bolts finger-tight.
  20. With all gaps closed, tighten the bolts, in the following sequence, to the proper values:
    1. Pump assembly-to-chain housing nuts:19 ft. lbs. (26 Nm).
    2. Pump cover-to-pump assembly: 106 inch lbs. (12 Nm).
    3. Cover-to-block, bottom bolt first: 19 ft. lbs. (26 Nm).
    4. Radiator outlet pipe assembly-to-pump cover: 125 inch lbs. (14 Nm).
  21. Using new gaskets, install the exhaust manifold. Make sure to following the tightening sequence and torque specifications given in the exhaust manifold procedure located in this section.
  22. Raise and safely support the vehicle.
  23. Index the exhaust manifold bolts into the exhaust pipe flange.
  24. Connect the exhaust pipe to the manifold. Install the exhaust pipe flange bolts evenly and gradually to avoid binding. Turn the bolts in until fully seated.
  25. Connect the radiator outlet pipe to the transaxle and oil pan.
  26. Install the timing chain tensioner and front cover.
  27. Install the lower heat shield.
  28. Carefully lower the vehicle.
  29. Fasten the bolt that attaches the exhaust manifold brace to the manifold.
  30. Tighten the manifold-to-exhaust pipe nuts to specification.
  31. Install the upper heat shield.
  32. Attach the oxygen sensor connector.
  33. Fill the radiator with coolant until it comes out the heater hose outlet at the thermostat housing. Then connect the heater hose. Leave the radiator cap off.
  34. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their proper levels, then turn the engine OFF.
  35. Once the vehicle has cooled, recheck the coolant level, then install the radiator cap.
3.1L Engine
  1. Disconnect the negative battery cable.
  2. Properly drain the cooling system into a suitable container.
  3. Loosen, but do not remove, the water pump pulley bolts.
  4. Remove the serpentine belt.
  5. Unfasten the water pump pulley bolts, then remove the pulley.
  6. Remove the five water pump mounting bolts, then remove the water pump. To install: Fig. 2: View of the water pump mounting and bolt tightening specifications - 3.1L engine shown 86883115.gif

  7. Clean all the gasket surfaces completely.
  8. Apply a thin bead of sealer around the outside edge of the water pump along the gasket sealing area, then install the gasket onto the water pump.
  9. Position the water pump on the engine, then tighten the water pump mounting bolts to 89 inch lbs. (10 Nm).
  10. Install the water pump pulley and finger-tighten the pulley bolts.
  11. Install the serpentine belt.
  12. Tighten the water pump pulley bolts to 18 ft. lbs. (25 Nm).
  13. Fill the cooling system.
  14. Connect the negative battery cable, then start the engine. Let the engine run until it reaches normal operating temperature, then check for leaks and coolant level. Add coolant, if necessary, then turn the engine OFF.
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Nov 03, 2010 | 2003 Chevrolet Malibu

1 Answer

How do I replace a water pump on a 1999 malibou with a quad 4?


Water Pump REMOVAL & INSTALLATION CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old. 2.4L Engine
  1. Disconnect the negative battery cable
  2. Detach the Oxygen (O2) sensor electrical connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for a more complete coolant drain.
  4. Remove upper exhaust manifold heat shield.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Remove the lower exhaust manifold heat shield.
  7. Break the manifold-to-exhaust pipe spring loaded bolts loose using a 13mm box wrench.
  8. Raise and safely support the vehicle. NOTE: It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  9. Unfasten the two radiator outlet pipe-to-water pump cover bolts.
  10. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt. NOTE: DO NOT rotate the flex coupling more than 4°or damage may occur.
  11. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  12. Remove the radiator outlet pipe from the oil pan and transaxle. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump. Leave the radiator outlet pipe hang.
  13. Carefully lower the vehicle.
  14. Unfasten the exhaust manifold-to-cylinder head retaining nuts, then remove the exhaust manifold, seals and gaskets.
  15. Remove the front timing chain cover and the chain tensioner. For details, please refer to the procedure located later in this section.
  16. Unfasten the water pump-to-cylinder block bolts. Remove the water pump-to-timing chain housing nuts. Remove the water pump and cover mounting bolts and nuts. Remove the water pump and cover as an assembly, then separate the two pieces. Fig. 1: Water pump and cover mounting - 2.4L engine 87953070.gif
    To install:
  17. Thoroughly clean and dry all mounting surfaces, bolts and bolt holes. Using a new gasket, install the water pump to the cover and tighten the bolts finger-tight.
  18. Lubricate the splines of the water pump with clean grease and install the assembly to the engine using new gaskets. Install the mounting bolts and nuts finger-tight.
  19. Lubricate the radiator outlet pipe O-ring with antifreeze and slide the pipe onto the water pump cover. Install the bolts finger-tight.
  20. With all gaps closed, tighten the bolts, in the following sequence, to the proper values:
    1. Pump assembly-to-chain housing nuts:19 ft. lbs. (26 Nm).
    2. Pump cover-to-pump assembly: 106 inch lbs. (12 Nm).
    3. Cover-to-block, bottom bolt first: 19 ft. lbs. (26 Nm).
    4. Radiator outlet pipe assembly-to-pump cover: 125 inch lbs. (14 Nm).
  21. Using new gaskets, install the exhaust manifold. Make sure to following the tightening sequence and torque specifications given in the exhaust manifold procedure located in this section.
  22. Raise and safely support the vehicle.
  23. Index the exhaust manifold bolts into the exhaust pipe flange.
  24. Connect the exhaust pipe to the manifold. Install the exhaust pipe flange bolts evenly and gradually to avoid binding. Turn the bolts in until fully seated.
  25. Connect the radiator outlet pipe to the transaxle and oil pan.
  26. Install the timing chain tensioner and front cover.
  27. Install the lower heat shield.
  28. Carefully lower the vehicle.
  29. Fasten the bolt that attaches the exhaust manifold brace to the manifold.
  30. Tighten the manifold-to-exhaust pipe nuts to specification.
  31. Install the upper heat shield.
  32. Attach the oxygen sensor connector.
  33. Fill the radiator with coolant until it comes out the heater hose outlet at the thermostat housing. Then connect the heater hose. Leave the radiator cap off.
  34. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their proper levels, then turn the engine OFF.
  35. Once the vehicle has cooled, recheck the coolant level, then install the radiator cap.

Oct 26, 2010 | 1999 Chevrolet Malibu

2 Answers

How to replace water pump on 97 pontiac sunfire 2.4


PLEASE DON'T FORGET TO RATE! THANKS! 2.3L & 2.4L Engines
  1. Disconnect the negative battery cable
  2. Detach the oxygen sensor connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for more complete coolant drain.
  4. Remove upper exhaust manifold heat shield.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Remove the lower exhaust manifold heat shield.
  7. Break loose the manifold to exhaust pipe spring loaded bolts using a 13mm box wrench.
  8. Raise and safely support the vehicle.
It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  1. Unfasten the two radiator outlet pipe-to-water pump cover bolts.
  2. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt.
On the 2.4L engines, DO NOT rotate the flex coupling more than 4° or damage may occur.
  1. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  2. Remove the radiator outlet pipe from the oil pan and transaxle. If equipped with a manual transaxle, remove the exhaust manifold brace. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump. Leave the radiator outlet pipe hang.
  3. Carefully lower the vehicle.
  4. Unfasten the exhaust manifold-to-cylinder head retaining nuts, then remove the exhaust manifold, seals and gaskets.
  5. For the 2.4L engine, remove the front timing chain cover and the chain tensioner. For details, please refer to the procedure located later in this section.
  6. Unfasten the water pump-to-cylinder block bolts. Remove the water pump-to-timing chain housing nuts. Remove the water pump and cover mounting bolts and nuts. Remove the water pump and cover as an assembly, then separate the two pieces.

01add58.gif
Water pump and cover mounting-2.3L and 2.4L engines

To install:
  1. Thoroughly clean and dry all mounting surfaces, bolts and bolt holes. Using a new gasket, install the water pump to the cover and tighten the bolts finger-tight.
  2. Lubricate the splines of the water pump with clean grease and install the assembly to the engine using new gaskets. Install the mounting bolts and nuts finger-tight.
  3. Lubricate the radiator outlet pipe O-ring with antifreeze and slid the pipe onto the water pump cover. Install the bolts finger-tight.
  4. With all gaps closed, tighten the bolts, in the following sequence, to the proper values:
    1. Pump assembly-to-chain housing nuts-19 ft. lbs. (26 Nm).
    2. Pump cover-to-pump assembly-106 inch lbs. (12 Nm).
    3. Cover-to-block, bottom bolt first-19 ft. lbs. (26 Nm).
    4. Radiator outlet pipe assembly-to-pump cover-125 inch lbs. (14 Nm).
  5. Using new gaskets, install the exhaust manifold. Make sure to following the tightening sequence and torque specifications given in the exhaust manifold procedure located in this section.
  6. Raise and safely support the vehicle.
  7. Index the exhaust manifold bolts into the exhaust pipe flange.
  8. Connect the exhaust pipe to the manifold. Install the exhaust pipe flange bolts evenly and gradually to avoid binding. Turn the bolts in until fully seated.
  9. Connect the radiator outlet pipe to the transaxle and oil pan. Install the exhaust manifold brace, if removed.
  10. On the 2.4L engine, install the timing chain tensioner and front cover.
  11. Install the lower heat shield.
  12. Carefully lower the vehicle.
  13. Fasten the bolt that attaches the exhaust manifold brace to the manifold.
  14. Tighten the manifold-to-exhaust pipe nuts to specification.
  15. Install the upper heat shield.
  16. Attach the oxygen sensor connector.
  17. Fill the radiator with coolant until it comes out the heater hose outlet at the thermostat housing. Then connect the heater hose. Leave the radiator cap off.
  18. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their proper levels, then turn the engine off.
  19. Once the vehicle has cooled, recheck the coolant level.

Sep 13, 2010 | Pontiac Sunfire Cars & Trucks

2 Answers

HONDA CIVIC 1992 HEATING UP. i CLEAN THE RADIATOR WATER PUMP IS WORKING FINE THERE IS NO WATER LEAK - BUT STILL LOOSING WATER 1/2 LTS EVERY TWO DAYS


You may have a small pin hole in one of your hoses that is only leaking under pressure. Of course you may not notce it with the vehicle idling because the pressure is higher as the rpms rise while you are driving.

More importantly though, you need to check your oil dipstick. If the oil looks "milky" you may have water leaking into your oil. This can happen if you have a problem with your "heads" such as a small crack. A cracked head can lead to a blown motor so check it out as you are checking all of your hoses on your cooling systems.

Good Luck!

Jul 04, 2010 | 1992 Honda Civic

1 Answer

How do i change a water pump in a 97 grand am with a 2.4 litre engine


2.4L Engine
See Figure 3
  1. Disconnect the negative battery cable.
  2. Drain and recycle the engine coolant.
  3. Disconnect the oxygen sensor wiring.
  4. Remove the upper exhaust manifold heat shield.
  5. Raise and safely support the front end of the vehicle securely on jackstands.
  6. Remove the exhaust manifold brace bolt.
  7. Unbolt and remove the lower exhaust manifold heat shield.
  8. Break loose the manifold-to-exhaust pipe spring loaded nuts.
  9. Unbolt the radiator outlet pipe assembly from the water pump cover.
  10. Disconnect the exhaust pipe from the manifold.
  11. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
Do not rotate the flex coupling more than 4°. this could damage the component.
  1. Separate the radiator outlet pipe from the oil pan and transaxle.
    1. On manual transaxle, remove the exhaust manifold brace.

  2. Next, leave the lower radiator hose attached and pull down on the outlet pipe to detach it from the water pump. Allow the outlet pipe to hang.
  3. Lower the vehicle.
  4. Remove the exhaust manifold-to-cylinder head nuts.
  5. Extract the manifold, seals and gaskets.
  6. Remove the timing chain cover. Refer to the procedure later on in this section.
  7. Remove the timing chain tensioner. Refer to Timing Chain removal later in this section.
  8. Unbolt the water pump from the cylinder block.
  9. Extract the pump assembly-to-timing chain housing nuts.
  10. Remove the water pump and cover assembly.
  11. Separate the pump from the cover.
  12. Clean all mating surfaces of gaskets and sealant materials.

To install:
Prior to installing the water pump, read the entire procedure. Pay special attention to the tightening sequence to avoid component damage and ensure a proper seal.
  1. Attach the water pump to the cover and hand-tighten the components.
  2. Lubricate the splines of the water pump drive with chassis grease or equivalent, then install the pump and cover assembly. Hand tighten the cover-to-block bolts.
  3. Install the pump-to-chain housing nuts and hand-tighten.
  4. Lubricate the O-ring on the radiator outlet pipe with an anti-freeze solution and slide the pipe into the water pump cover, install and hand-tighten the bolts.
  5. With the specified gaps, tighten in sequence as follows:
    1. Pump assembly-to-chain housing nuts
    2. Pump cover-to-pump assembly
    3. Cover-to-block, bottom bolt first
    4. Radiator outlet pipe assembly-to-cover

  6. Install the exhaust manifold using new gaskets.
  7. Install the manifold-to-cylinder head nuts, follow the tightening sequence and tighten to specifications.
  8. Raise and support the front of the vehicle.
  9. Index the exhaust manifold-to-exhaust pipe flange bolts.
    1. Turn bolt bolts in evenly to avoid cocking the exhaust pipe and binding the bolts. Turn the bolts in until they are fully seated.

  10. Install and secure the radiator outlet pipe to the transaxle and oil pan.

On manual transaxles, install the exhaust manifold brace.
  1. Install the timing chain tensioner and chain cover.
  2. Attach the lower heat shield.
  3. Lower the vehicle.
  4. Attach the exhaust manifold brace. Tighten the manifold-to-exhaust pipe nuts to specification.
  5. Attach and secure the upper heat shield.
  6. Connect the oxygen sensor wiring.
  7. Fill the radiator with coolant water mixture until it reaches the heater hose coolant outlet, then install the hose and continue to fill. This will assist with the complete cylinder block fill.
  8. Connect the negative battery cable.
  9. Start the engine and top off the cooling system and check for leaks.
ec6ae2e.jpg

Dec 28, 2009 | 1997 Pontiac Grand Am

4 Answers

1995 Isuzu Rodeo Still overheating


umm...Where do I start? First thing you should have done is to replace the radiator cap. You could then self test the thermostat by placing it into a pot on the stove (Think its supposed to open @ about 195 degrees) If all hoses look good...Check the oil...any discoloration? Bubbles? Is the Oil higher than the 'Full' mark on the stick? This could be an indication of coolant in the crankcase, which frequently means blown head gasket. Oil ok? Check the radiator over flow...Any oil traces inside? you know...that infamous oil rainbow that developes when oil comes in contact with water? If you had a mechanic do all this stuff for you, I am shocked (and dismayed) that he didn't perform a hydrocarbon test on your radiator to see if emissions from the engine are present in your radiator...Over heating can be a great indicator of a cracked block or head...or of a compromised gasket. Its not always so obvious at first, but very obvious once its to late. The gentleman with the air bubble solution, sounds pretty brilliant to me.. This sounds like classic head gasket to me. Any white smoke coming from the tail pipe after warmed up? If so...and vehicle not worth new engine or head job..They have some pretty amazing liquid head gasket repair solutions out there. Lastly...The heater core...When you run the heat, are you smelling 'sweet' radiator odor? Is the defroster actually fogging up your windshield?, if this is the case...You can bypass the core by inserting a coupler between the supply and return hoses...This would stop the over heating...unfortunately it would stop all heating (Inside the vehicle) until it was replaced. Pull your spark plugs...are they fouled? Check cylinder compression...any cylinders low? All this could contribute to your vehicle overheating. Go back to Mechanic and have him pressure test radiator, work from there. All I can think of off hand...Hope this can help you.

Sep 21, 2009 | 1995 Isuzu Rodeo

1 Answer

Replacing the water pump


2.4L Engine
  1. Disconnect the negative battery cable
  2. Detach the Oxygen (O2) sensor electrical connector.
  3. Properly drain the engine coolant into a suitable container. Remove the heater hose from the thermostat housing for a more complete coolant drain.
  4. Remove upper exhaust manifold heat shield.
  5. Remove the bolt that attaches the exhaust manifold brace to the manifold.
  6. Remove the lower exhaust manifold heat shield.
  7. Break the manifold-to-exhaust pipe spring loaded bolts loose using a 13mm box wrench.
  8. Raise and safely support the vehicle.

NOTE It is necessary to relieve the spring pressure from 1 bolt prior to removing the second bolt. If the spring pressure is not relieved, it will cause the exhaust pipe to twist and bind up the bolt as it is removed.
  1. Unfasten the two radiator outlet pipe-to-water pump cover bolts.
  2. Remove the manifold to exhaust pipe bolts from the exhaust pipe flange as follows:
    1. Unscrew either bolt clockwise 4 turns.
    2. Remove the other bolt.
    3. Remove the first bolt.

NOTE DO NOT rotate the flex coupling more than 4° or damage may occur.
  1. Pull down and back on the exhaust pipe to disengage it from the exhaust manifold bolts.
  2. Remove the radiator outlet pipe from the oil pan and transaxle. Leave the lower radiator hose attached and pull down on the outlet pipe to remove it from the water pump. Leave the radiator outlet pipe hang.
  3. Carefully lower the vehicle.
  4. Unfasten the exhaust manifold-to-cylinder head retaining nuts, then remove the exhaust manifold, seals and gaskets.
  5. Remove the front timing chain cover and the chain tensioner. For details, please refer to the procedure located later in this section.
  6. Unfasten the water pump-to-cylinder block bolts. Remove the water pump-to-timing chain housing nuts. Remove the water pump and cover mounting bolts and nuts. Remove the water pump and cover as an assembly, then separate the two pieces.
87953070.gif Water pump and cover mounting—2.4L engine
Click to Enlarge
To install:
  1. Thoroughly clean and dry all mounting surfaces, bolts and bolt holes. Using a new gasket, install the water pump to the cover and tighten the bolts finger-tight.
  2. Lubricate the splines of the water pump with clean grease and install the assembly to the engine using new gaskets. Install the mounting bolts and nuts finger-tight.
  3. Lubricate the radiator outlet pipe O-ring with antifreeze and slide the pipe onto the water pump cover. Install the bolts finger-tight.
  4. With all gaps closed, tighten the bolts, in the following sequence, to the proper values:
    1. Pump assembly-to-chain housing nuts:19 ft. lbs. (26 Nm).
    2. Pump cover-to-pump assembly: 106 inch lbs. (12 Nm).
    3. Cover-to-block, bottom bolt first: 19 ft. lbs. (26 Nm).
    4. Radiator outlet pipe assembly-to-pump cover: 125 inch lbs. (14 Nm).
  5. Using new gaskets, install the exhaust manifold. Make sure to following the tightening sequence and torque specifications given in the exhaust manifold procedure located in this section.
  6. Raise and safely support the vehicle.
  7. Index the exhaust manifold bolts into the exhaust pipe flange.
  8. Connect the exhaust pipe to the manifold. Install the exhaust pipe flange bolts evenly and gradually to avoid binding. Turn the bolts in until fully seated.
  9. Connect the radiator outlet pipe to the transaxle and oil pan.
  10. Install the timing chain tensioner and front cover.
  11. Install the lower heat shield.
  12. Carefully lower the vehicle.
  13. Fasten the bolt that attaches the exhaust manifold brace to the manifold.
  14. Tighten the manifold-to-exhaust pipe nuts to specification.
  15. Install the upper heat shield.
  16. Attach the oxygen sensor connector.
  17. Fill the radiator with coolant until it comes out the heater hose outlet at the thermostat housing. Then connect the heater hose. Leave the radiator cap off.
  18. Connect the negative battery cable, then start the engine. Run the vehicle until the thermostat opens, fill the radiator and recovery tank to their proper levels, then turn the engine OFF.
  19. Once the vehicle has cooled, recheck the coolant level, then install the radiator cap.

3.1L Engine
  1. Disconnect the negative battery cable.
  2. Properly drain the cooling system into a suitable container.
  3. Loosen, but do not remove, the water pump pulley bolts.
  4. Remove the serpentine belt.
  5. Unfasten the water pump pulley bolts, then remove the pulley.
  6. Remove the five water pump mounting bolts, then remove the water pump.
To install:
86883115.gif View of the water pump mounting and bolt tightening specifications—3.1L engine shown
Click to Enlarge
  1. Clean all the gasket surfaces completely.
  2. Apply a thin bead of sealer around the outside edge of the water pump along the gasket sealing area, then install the gasket onto the water pump.
  3. Position the water pump on the engine, then tighten the water pump mounting bolts to 89 inch lbs. (10 Nm).
  4. Install the water pump pulley and finger-tighten the pulley bolts.
  5. Install the serpentine belt.
  6. Tighten the water pump pulley bolts to 18 ft. lbs. (25 Nm).
  7. Fill the cooling system.
  8. Connect the negative battery cable, then start the engine. Let the engine run until it reaches normal operating temperature, then check for leaks and coolant level. Add coolant, if necessary, then turn the engine OFF.

Aug 20, 2009 | 1997 Chevrolet Malibu

2 Answers

How to replace the water pump on 1993 oldsmoblie achieva.


2.4 enigine is the harder of the 3 enignes. it will need a timing chain to be removed and a coolant tube in the back of the engine to be removed. this job on the book calls for almost 7 hours.

if its 3.3 or 3100 its alot easier.

3100 is just 4 10mm pulley bolts and 5 or 6 small 8mm water pump bolts.

3.3 is alittle more work, but same concept as 3100 engine. more owkr only cause its in a tighter area.

good luck,
michael

Apr 29, 2009 | Oldsmobile Achieva Cars & Trucks

1 Answer

Heating in my car


There is a valve that controls the hot water into the vehicle heat exchanger which is on the cab side of the firewall. The device is controlled mechanically with a push-pull cable , by vacuum control or electro-mechanically by a servo actuator.
There are most likely TWO pipes that come from the engine radiator and go through the firewall, rear wall of the engine compartment, into the passenger cab area. The Heat exchanger control valve is
mounted somewhere along the path of ONE of those pipes or tubes (the "input" tube).
There are many threads on the Internet on this vehicle and year, and so many concern heating/cooling.
I would suggest getting or borrowing a $20-25 manual on the car and going to the body section and
tracing either the vacuum diagram or the heating control section to find the valve and also the dash controls. Something is disconnected or broken with either one of the three methods described.

This assumes all else is OK and NO COOLANT leaked into the Oil (frothy Oil on dipstick)
and no Transmission Fluid is in the Coolant (oily color reddish in the Coolant with oil smell instead of sugary sweet smell) ; if the coolant system integrity is compromised in any way as described; stop -> go to a mechanic <-; increasing damage is imminent.

If its just a control issue, you can probably set the valve up at 1/2 open if its a mechanical type with push-pull cable; I have done this on several cars when the control cable rusts; disconnect the valve end and set it manually 1/2 or 3/4 for the winter

Johnny

Oct 23, 2008 | 1994 Dodge Shadow

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