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Renaut 5 camps prima - 94M Engine overheating

Absolute nightmare here!!! Engine is overheating, water doesn't seem to be flowing round the system. Have checked theromstat in saucepan of hot water, have replaced water pump. Have bleed the system. Still no joy. I'm baffled as the water doesn't seem to circulate at all. Any help much appreciated

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  • jethroseaton Feb 16, 2009

    The garage said the head gasket is blown as that is why the water is not circulating and that is causing the steam



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If your head gasket has blown that will explain it all

Posted on Jul 12, 2010

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Check that the water pump is working, if water is not circulating, the most likely it is a faulty water pump.
You may need to replace the water pump.

Posted on Feb 08, 2009

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Try removing the thermostat and then remove the bleeder screw, put in the water hose in the radiator/expansion tank and see if the water comes out with pressure. If yes the system is not restricted but otherwise probably the radiator is blocked.

Posted on Feb 08, 2009

  • Armel Aubeelack
    Armel Aubeelack Feb 17, 2009

    Didi you bleed it the proper way? They are preety special when it comes to bleeding and if there are air pockets in the radiator, the water will not circulate. Have you tried removing the thermostat completely?


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Make sure all the air has been bled from the cooling system. Make sure there is nothing restricting the airflow through the radiator ( mud etc ). If ok, possible defective water pump impeller or restriction internal to the radiator not allowing the coolant to flow effectively. Worst case would be a defective headgasket

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I have a 1994 ford Taurus that has new plugs new thermastat new water pump new coil wires but car is still overheating

does putting heater on hot prduce hot air.on full with fan on does it reduce temo?is ur radiator fan coming on? hard to give one dont know if its overheating in traffic or on the move?there could be air stuck in pipes slowing water flow.or a pipe/radiator blockage so coolant doesnt get to flow around engine so it gets hot.u could check radiator by touching see if hot or cold where pipes enter(prob switch off engine first) try bleeding system squeesing pipes to push air out

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Water come out to coolant reservoir over flow when the water is toyota 3c engine

There is either too much coolant in the system, or the system is overheating. The reservoir should have a "FULL COLD" mark where the coolant should reside when the engine is off and the coolant is cold. If that is correct, and the coolant still overflows when the engine is hot, you are overheating and need to check the radiator for obstructions, the coolant fan, water pump, and thermostat for proper operation.

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My car runs hot and leaks antifreeze. I have replaced the thermostat and water pump. It doesn't do it constantly, it can go all day with out doing it and sometimes it leaks like crazy.

The overheating of the car can be due to many reasons and you need to check on each one to confirm the working of the system.
1. In the first place the working of the engine must be assessed. it must be smooth with a good indication that the tuning timing and the power seems good. This will confirm that the settings of the engine is good and so there is less scope that the engine seems to heat up on its own.
2. Secondly the radiator pressure cap must be tight and good, the radiator MUST not loose coolant after a run or in a few days time- since this must be a sealed system and there is no scope of water overflow or loss unless there is a leak- sometimes the leak is too microscopic as under high pressure only steam might escape and so reduce the coolant. So check for leaks while the engine is hot , specially the radiator, the hose or the fittings.
3. The working of the water pump must be good to ensure a good flow and circulation, so check for leak in the water pump, check for presence of water in the exhaust or leaking on the engine gaskets.
4.Make sure that the coolant is good and clean if not drain and refill , if there is presence of rust please have a good flushing of the radiator or else the chances are that the radiator ports can be blocked and reduce the efficiency of the cooling .
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Overheating can seriously damage a car's engine if left unchecked. Although overheating simply means that a car's engine temperature exceeds normal operating temperatures, the causes of overheating are varied. What follows is a brief list of some of the most common causes of engine overheating.

    Faulty Radiator
  1. A car that overheats will often have a faulty radiator. A radiator is responsible for cooling hot engine coolant that picks up heat from inside a car's running engine. A radiator "radiates" the heat from engine coolant out into the outside air. A faulty radiator loses its "radiating" effects and allows engine coolant to become overheated, thus rendering it ineffective at adequately cooling and engine.
  2. Faulty Water Pump
  3. A faulty or malfunctioning water pump prevents adequate engine coolant flow and can cause a car to overheat. A water pump serves to pressurize and propel engine coolant throughout a car's engine and radiator to increase the heat-reducing capabilities of engine coolant. A faulty water pump loses its ability to adequately pump and propel engine coolant, and can cause a car to overheat.
  4. Coolant System Leaks
  5. A leaky engine coolant system reduces the level of circulating engine coolant, which increases engine temperature and leads to engine overheating. Radiators, water pumps, and coolant system hoses and seals--all of these coolant system parts can develop leaks, which can result in low coolant levels and engine overheating.
  6. Faulty Thermostat
  7. A car thermostat regulates the flow of engine coolant. A thermostat is a heat-sensitive valve that opens when a car engine reaches a set operating temperature and closes when a car engine is cold and warming up. If a thermostat gets stuck in the closed position, coolant will be prevented from reaching the engine, which will quickly lead to engine overheating and potential engine damage.
  8. Low Engine Oil Level
  9. Engine oil, in addition to lubricating an engine's internal parts, helps to keep engine operating temperatures reduced by eliminating friction within the engine. If engine oil levels are low, friction and heat build up inside an engine, a condition that causes increased engine operating temperatures and can lead to engine overheating.

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Thank you for using fixya and check your engine oil to make sure there is no coolant mixing in with your engine oil. Coolant is corrosive to your engine's internal bearings.

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