Question about 2004 Jeep Grand Cherokee

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Car overheats while idle. I'm thinking water pump. What do you think?

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  • Richard Scordino Aug 24, 2010

    Doubtful.... unless the pump is leaking or the bearing is really loose, usually there is no reason to replace the pump. (they still work even when the shaft wobbles and they leak all over the place)
    Check mechanical clutch fan and electric fan, make sure thermostat isn't only partially opening and that the radiator isn't externally or internally obstructed.

  • earleyshow13 Aug 24, 2010

    Normally, when you start the truck, you can hear coolant flowing behind the dash. Not hearing that any longer. Coolant level shows full on the container. Vehicle has a tow pkg so after the temp passes 210 what sounds like a secondary fan (a loud roaring noise) starts and the temp eventually gets up to around 240, maybe a little higher. When i start driving again, it stops, goes back down to around 210. However, when i stop, it all starts up again. Temp goes up, loud roaring noise...



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In a system that's full, you should not hear the coolant flowing Generally if you can hear it that means there is air in the line.
If you don't have a sealed system, with the engine off and cold, remove the radiator cap and add coolant there with the engine running and heat on high. If it overheats while filling check the temp of the upper and lower hoses. If one is much cooler than the other, replace the thermostat and re-fill and check again. If filling the radiator takes a long time and you cannot pour coolant in without stopping every five seconds to wait for it to go down the radiator is probably blocked internally.
A failing head gasket can push exhaust into the cooling system. If you see any steam at the tailpipe or coolant in the engine oil you may have a problem there. A dye test or "sniffer" can also be used to verify a problem like that. Don't worry about that have other things to test first!.

Posted on Aug 24, 2010


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SOURCE: where is the water pump located on a 1997 chrysler concord

You should take it to a shop and have a pressure test done on it. If it's a 3.3, it only takes about 30 min. to put a water pump on. If it's a 3.5 style engine, you have to take the timing cover off to replace the water pump. You also have to replace the timing belt.

Posted on Jan 11, 2009

  • 226 Answers

SOURCE: overheating

there is a weep hole on the neck of the water pump

it will leak if there is adequate pressure in the
system .

But a mechanic will know for sure

Posted on Mar 27, 2009

  • 286 Answers

SOURCE: car is running hot (temp gauge rises above normal)

how is the thermostat? that would cause it to overheat, a warped head would cause it to over heat too

Posted on Jun 29, 2010

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