![]() Nor can you get any readouts from the BIC. What is really annoying is the fact when you have the display of:" COOLANT LEVEL", you cannot change band on the radio,switch stations or switch over to the CD player. I have checked the the level,and it is even a 3/8" above the " COLD/KALT" level. The " COOLANT LEVEL" display comes on regularly. The problem has been getting increasingly worse. This will be the second trip there to rectify the situation. I am taking the wife's car in tomorrow for an overnite visit to the dealer. It's funny how when the car is under warranty the dealer is reluctant to change any parts, but when it is out of warranty, they shotgun the hell outa them. If I unplug it and get no message, that may be something for you guys to try when you get the message. I'll try unplugging the connector and see what happens this week. I could look it up in some of my other GM service manuals but there is no guarantee its the same on this car. I don't know if the sensor is a float or what, or if it is variable or just on or off. I could not because of baffles inside the tank, to prevent sloshing and perhaps setting of bogus low coolant messages. Perhaps because the tank is under pressure and they don't want you to open when hot, to top off? I removed the cap to see if I could see what the sensor looked like inside the tank. There appears to be not "hot" mark that I could see. My tank was filled above the "cold" level from the factory, its up to the seam in the tank. It has two wires brown and brown with a green stripe. There is a low coolant sensor entering the reservoir from the bottom, towards the front. When I was checking the oil today, I remembered this thread and was poking around the coolant reservoir. It may be a good idea to have your coolant system checked at your local garage at your earliest opportunity just to make sure there isn’t an underlying problem.Iv'e just turned over 7000 miles and have not had this problem. If you don’t notice any leaks and the coolant warning light goes out once you’ve topped up the reservoir, you are alright to continue your journey, although you should keep an eye for the light coming back on again as it may be symptomatic of a problem that may return. Call your local garage or breakdown service for recovery. If you notice any leaks, do not continue your journey. You can then have a look for any obvious leaks in the coolant reservoir or hoses, although these may be extremely hard to see. Once the pressure has subsided, you can remove the cap fully, check the level of the coolant and top up as required. Once the engine has cooled down, slowly open the coolant reservoir cap, allowing any remaining pressure to be released. If you try and open the coolant reservoir or the radiator cap whilst the engine is still hot, you run the risk of allowing hot, pressurised steam to blow out and burn you. It is far more sensible to stop your car and let the engine cool down.īefore you check anything, it’s vitally important that you let the engine cool down for at least thirty minutes first. If you continue to drive, ignoring the warning light, you are submitting your engine to temperatures that could cause permanent damage, resulting in expensive repairs. As we’ve said, the coolant light is telling you that your engine’s temperature is getting too high and this requires your immediate attention. As coolant travels around your engine, there are various places where it can leak from, such as hoses, the water pump or the radiator.įirst and foremost, you should stop your car as soon as it’s safe to do so. These leaks can be a serious problem, as they’re not easily diagnosed and easily fixed. Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. What causes the coolant warning light to come on? When this process fails, the engine temperature increases and triggers the coolant warning light. In order to keep your engine from welding itself together, coolant is pumped around the engine. The side effect of all these explosions is a huge amount of heat. These explosions move the pistons up and down which, in very simple terms, starts to power your engine. In order for your car to work, a series of explosions are created in the combustion chamber. If the coolant warning light becomes illuminated on your dashboard as you’re driving along, it’s a certain sign that your engine is overheating.
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