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Upper couper pipe conescted to the heat pump of panasonic cu-4chv11np lools loose at connection point, and there are gas leak. How to fix? How much is to regas?

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The fix is going to entail a silver solder weld due to the high pressure the line holds. As far as cost to recharge system it is up to the a/c tech that does the work but the cost should be around 150 to 200.00 depending on the ease of repairs. Good Luck on repairs

Dave

Posted on Oct 29, 2009

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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.
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  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.
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  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.
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  6. Install the exhaust manifold using new gaskets.
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  9. Index the exhaust manifold-to-exhaust pipe flange bolts.
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  10. Install and secure the radiator outlet pipe to the transaxle and oil pan.

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1 Answer

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