Question about 2000 Mazda MPV
Yes you are probably right! The easy way to deal with this is to leave the coolant pressure cap off after adding coolant and let the engine warm up until the coolant has expanded to it's full temperature volume. Coolant typically expands over 30% of its original volume as it reaches normal engine operating temp and this massive rate of expansion is often very convenient for flushing out air bubbles from the system. Also poke around under the hood and look for a bleed screw on the thermostat housing or near the highest point in the cooling system. you can crack that open when adding coolant but seriously don't do any of this when the engine is hot or even warm. Work on it cold then bleed the air out then try cranking it with the pressure cap off and letting the engine warm up. As soon as the engine is warm and whatever coolant has overflowed is no longer going to burn you then replace the cap. You can replace the cap while the engine is still hot though just don't burn yourself on any overflowing coolant. f none of this helps then use prestone radiator flush as reccomended and do so while the heater is turnded to it's hottest temp setting. That will flush the heater core of rust and particles that have restricted the flow of water through it during the off season when it sat without getting any use.
Posted on Jun 04, 2010
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Posted on Jan 02, 2017
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Apr 04, 2016 | Mazda Cars & Trucks
The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.
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