If they had programmed it for like 1 to 5 minutes, it would have been a little better.Īnyway, that's my best explanation and I am looking forward to some better educated answers. The other no-information readout in my 16.5 CX-5 is the instantaneous mileage. But, they may have realized that when you have to dash out of the house, start the car, and get the HELL out of there, you would need all the power you can summon to get away from the Zombies. Mazda engineers could have programmed the engine to operate in reduced output mode when cold, limiting RPM and power. Oil temperature is a much better indication whether the engine reached its steady-state thermal condition. Quite a low threshold, and by far not an indication that its possible to rev the the hell out of the engine when the light goes off. I think it's related to the Zombie apocalypse. The blue light stays until the coolant temperature reaches 50C. It is a warning that you should drive easy until it goes off. Maybe the CPU managing the injection and engine management functions switches to a different mode. But I find the cabin heater works around the time the light goes off. If youve ever glanced down at your dashboard in confusion at a little blue light upon starting your vehicle, were here to tell you exactly what that little light is. It is not operating temperature since the oil hasn't warmed up much. It does indicate the engine is "cold" and goes off when the engine ( likely a sensor in the water jacket in the cylinder head) reaches a certain temperature. They went through 2 or 3 revisions til what we have now.Great question, since I have the same one. The coolant level should be between the minimum and maximum marks. Since I live in the cold midwest, Im wondering how long I should wait for the blue light before driving. It simply means to take it easy as the coolant is still cold. Check the coolant level in the reservoir. If the coolant warning light is blue in colour you are most likely driving a Japanese product. In most cars, the reservoir is situated behind the engine bay and is easily recognized by the coolant symbol on the cap. Check the temp in the tank with a meat therm and confirm its. The revised coolant cap from Ford does address the original issues with the old caps. Open the hood and locate the coolant reservoir. Coolant level is low or the sensor in the tank is dirty. He has a couple of videos on YouTube about this. They are a common failure item on them, causing coolant to boil too early. A Ford Super Duty diesel specialist out of metro Atlanta Georgia has used tons of aftermarket caps without issue. Feel free to research the internet on the aftermarket caps. Im sure all the sensors are there and the computer knows where the temp is at. This is when you check for consistent heat out of the vents with the heater on. Start the engine, keep the funnel at half and after 3-5 minutes rev the engine to 4k rpm a few times to force coolant through the system. I bet someone out their has already figured out how to read the engine temp on their phone. When first filling the system, after the coolant stops filling the radiator, put the funnel at half full. B type meter display will have temp gauge. The aftermarket caps can be just as fine as a Motorcraft. If you bought a Civic Sport the dash display will not show temp. 2015 CX-3 Sport Nav, Dynamic Blue Mica, 1.5 Diesel, AWD, Automatic. Just the level/float sensor is sticking.ĭepending what you want to do with the car in terms of keeping it, should determine which tank to buy.Īgain, more bad advice re:caps. Mazda says that when the blue thermometer light goes out, it doesnt necessarily mean that the coolant is up to normal temperature, just that its not cold. It hasn't even cracked like the Vulcan ones love to do. As you'll note exocet, you're tank lasted from when it left the factory til now. If the light goes off after refilling the coolant, the issue may have been as simple as a low coolant level. Ensure the coolant is at the correct level and refill if necessary. You can do this by opening the hood and locating the coolant reservoir. This is documented and proven on here if you search around through the old threads. The primary thing you should do is check the coolant level in your vehicle. The blue engine coolant light informs the driver about the low coolant temperature. The aftermarket parts (Dorman is the normal replacement) do not carry the longevity and durability that the Motorcraft part carries.
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