Question about Mazda Cars & Trucks
There are two fans on many cars, but one is for the radiator cooling fan and the other is an auxiliary fan which is energized when the air-conditioning is turned on. Try turning on your air-con and see if this fan comes on. Pressure test your system. You won't know if you have a coolant leak for certain until this has been performed.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
i had the same thing on my wifes 2000 mpv van...the ends of the radiator are made of some sort of composite type material....it had a slight crack in it....wasn't obvious until it got worse and started streaming water from it when warmed up....even after it cooled enough not to be spewing it was hard to actually see the crack though a few inches long....was hard to even see where the water and antifreeze mixture was coming from until i took out the radiator
Posted on Jan 13, 2009
First thing first, turn off the engine wait for 15 - 20 mints, open the radiator cap and fill it up to the top then start the engine and see if it needs more water adn add as needed, then wait till you ca see the water circulating in the radiator now instead of corculating if it starts boiling out shut the engine replace the thermostat and do the whole thing again.
unless there is water in the engine the gauge will not be able to show the actual temp of the engine, so always malke sure you have water / antifreeze
Posted on Nov 15, 2008
SOURCE: draining radiator coolant
IF it was really dirty before empying the old coolant - you should do a flush before re-fill with the new collant.. You can get it at any local parts store.. Follow the directions..
IF SO - I highly recomend Lucas prduct.. More money - but really good stuff.
If it was not too bad - yes - run some water therough it..
Allways do 50/50.. If you use too much coolant - you risk the cooant gelling..
Also - there should be a Lucus pruduct that is a coolent additive and is also a great lubricant for the system and water pump - to make it last longer..
Please dont forget to rate well ;o)
Posted on Aug 08, 2009
Generally if one hose is hot, and the other hose is cold it indicates that they water is not circulating. You could have a defective thermostat. Take the thermostat out and run the engine without it. With the radiator cap off you should see a lot of water moving through. It that is the case, replace the thermostat and you should be ok. If there is no rapid movement of water it may be the impeller on the water pump came loose. This is rare, but it can happen since the impeller is usually pressed on the shaft. You should also check and see if you get a lot of bubbles when the car is running and the cap off. This often indicates a blown head gasket. Hope this helps.
Posted on Aug 10, 2010
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