Question about Mazda Cars & Trucks
Hi Innocent, There are several reasons why the coolant can overheat in a cooling system. Make sure that the cooling fans are cutting in when the temperature gauge is at just under the halfway mark. the fans should cut in and then after a short interval, stop. The most common cause is loss of coolant which is often related to a defective radiator cap. The cap is actually a pressure valve and when defective causes coolant lose. Another cause can be leakage from the core plugs or radiator hoses or metal piping. a 'blown' cylinder head gasket is another cause. If the timing belt has recently been replaced and the problem began at that time, the problem could be caused by incorrect installation of the belt causing the valve timing to be incorrect. I suggest you have a cooling system pressure test carried out, which will often pin point the cause if it is a leakage. Regards John
Posted on Oct 12, 2013
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Posted on Jan 02, 2017
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