Question about Chrysler Pacifica

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My 2004 Pacifica started leaking coolant rapidly the other day, when I parked it. I checked the overflow bottle and it was empty. To see if the water pump might have gone bad, I turned the vehicle on and started it. There were no horrible sounds, nor any warning lights flashing. I poured some new coolant into the overflow bottle and it immediately began to leak on to the ground. This seems like a bad radiator hose to me. Any ideas? If you think I am on track, how do I change the lower radiator hose? Thank you!

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  • Craig Jun 22, 2009

    I know where the coolant is leaking from, with a good degree of certainty. I was asking for instruction on where to find and how to change the lower radiator hose on the 2004 Pacifica. Since this is a more technical question, I was thinking an automotive expert might be able to provide some specific guidance or directions.

    Thank you.

  • Craig Jun 22, 2009

    Thanks for the reply...much more along the lines I needed. Do you happen to know where (or have a schematic/Chilton's instructions) specific to the Pacifica? If not, I understand. I was hoping to find, somewhere online, a specific instruction guide for replacing lower inlet hose that you described.

    Thanks again for your help.

  • Craig Jun 24, 2009

    Thank you. This was exactly what I was looking for, in an answer. Unfortunately, it was the water pump that went bad. Oh well.



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The explained procedure would be :-

  1. Step 1 Turn off the engine as soon as you suspect a leak, to prevent the engine from overheating.
  2. Step 2 Determine which radiator hose is leaking and exactly where the leak is coming from by looking for wetness.
  3. Step 3 Purchase 1 gallon of antifreeze and the correct replacement radiator hose from your local auto-parts store or dealer. (Radiator hoses are not interchangeable. They come in specific sizes and shapes for your particular car model.)
  4. Step 4 Wait for the engine to cool down for at least 20 minutes, before beginning any work on the cooling system.
  5. Step 5 Place a large pan or wide bucket on the ground under the hose to catch the coolant.
  6. Step 6 Use a screwdriver to loosen the hose clamps at both ends of the hose you are replacing.
  7. Step 7 Remove the radiator hose by twisting and pulling where it connects to the radiator and engine. If the hose won't budge, use a utility knife to cut it off the fittings.
  8. Step 8 Remove the hose clamps from the old radiator hose and slide them onto the new hose.
  9. Step 9 Put the new radiator hose on. Spray the inside of the hose ends with WD-40 if the hose is hard to get on. Tighten the hose clamps.
  10. Step 10 Refill the radiator and the coolant reservoir with a 50-50 mixture of water and antifreeze.
  11. Step 11 "Burp the cooling system" by running the engine with the radiator cap off until the engine warms up. Keep the engine running until both the upper and lower radiator hoses feel warm (this indicates that the thermostat is open and the coolant is flowing through the entire system). Burping the cooling system allows any air bubbles to escape. Add coolant to the radiator as needed.
  12. Step 12 Look for leaks. Inspect around the hose clamps for dampness. Tighten the hose clamps if there is any wetness.
  13. Step 13 Put the radiator cap back on.
  14. Step 14 Check the coolant level after driving, to ensure there are no leaks.
Things you need are :-

  • WD-40 silicone spray
  • Large Pan Or Wide Bucket
  • New Radiator Hose
  • Antifreeze
  • Utility Knife
  • Funnel
  • Flathead Screwdriver
If you want a detailed diagramatic view, that's only possible with repair manual.You can purchase a cost effective repair manual from any sites. One of the sites would be:-

Thanks for using "Fixya".

Posted on Jun 22, 2009

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Location of hose: An engine has two radiator hoses: lower and upper. The lower hose brings coolant (a mixture of water and antifreeze) that has been cooled in the radiator to the engine, where it circulates and absorbs heat. The upper hose carries hot coolant from the engine back to the radiator to be recooled. The radiator hoses are located between the radiator and the engine block.
replacement procedure: Just loosen the clamp on both ends of the hose. Usually it is a squeze type if it is never been replaced. Squeze the two prongs together then slide it towrd the center of the hose. If it is hard to get of then **** the hose with a razor knife long ways then pull it off. Once the hose is off then replace it. I also replace the hose clamp with the screw/worm type so that it is easier to get off next time. Good luck.
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Posted on Jun 22, 2009

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These are the following places from you can expect the coolant leaking..
A. Checking Water Pump:
B. Check for Radiator Leaks:
C. Inspect Coolant Hoses
You have physically check to find the actual place if is leaking from.

Note: do not run the engine without coolant as that would additional problems

Also check the link for more detail


Kindly rate the answer

Posted on Jun 21, 2009

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