![]() Do this especially if this was the original problem. then, on the dash, seeing a green light turn on, reminding me that it was "COLD". Step 2: Check to see if the check engine or low coolant level light is illuminated. I traced it to the tube going from the radiator to the resevoir. Joined 2004 Add to quote Only show this user 1.If the is in red, it means your hill brakes have failed, so you will roll on an incline once you release the foot brake. Jump to Latest Follow 13K views 28 replies 4 participants last post by Ben Carufel Jan 5, 2005. A yellow warning means your brake fluid is low, and you need to get it refilled, so drive carefully. Your check engine light comes on when one of the sensors in your car sends a message to the ECU (Electronic Control Unit) telling it there is an issue. You usually see this indicator as a that can light up in yellow or red. Causes of Coolant Loss Unlike engine oil, which can be changed as frequently as 3,000-5,000 miles, you normally dont have to check and replace coolant as often. Low coolant can lead to engine temperatures exceeding 230☏, significantly above the optimal range of 195☏ to 220☏. In a study, 5 of check engine lights were linked to cooling system issues, including low coolant. I recall getting into a '61 Oldsmobile when it was 25 below zero, shivering on the vinyl seat that was as hard as a brick -and cold!- sitting there, freezing, turning the key to hear the starter slowly grinding away on the monstrous 391 cubic inch V-8 trying to get it to start. Another early indicator of a problem with your cooling system may be the check engine light on your dashboard. If this sensor malfunctions, it could be causing the coolant light to turn on even if you dont have low antifreeze levels. Low coolant level can cause the check engine light to illuminate. Before you start, turn off your engine and wait until it’s sufficiently cool to open your coolant reservoir. Only in America: in the early 60s, "idiot lights" became quite the fashion. Start with the easiest repair solution, which is low coolant levels. Remember to follow the exact instructions for your vehicle type and seek expert assistance. its importance and how to check, refill, and reset the low coolant indicator. If you're getting a "LOW COOLANT" light when starting, either it really is a bit low, or as Dennis mentioned you may really have a flaky sensor in the overflow tank. You can guarantee the correct operation of your car’s cooling system and avoid possible engine damage. ![]() So yes, it's somewhat akin to -and indicative of- "cold" and "hot" on other vehicles, but is strictly a volume situation. As it expands, coolant will flow into the reservoir, then be drawn back into the engine as it cools off and its volume is reduced. Ideally, it should never fall below the "MIN" mark nor ever rise above the "MAX" mark on the reservoir, but it WILL rise and fall as its temp rises and falls. At the risk of sounding too much like a know-it-all teacher (yeah, I was one, sorry).Īs far as I know, all cars these days (and most, since the 1960s) have coolant overflow reservoirs, as coolant will expand when it's heated up as the engine runs. ![]()
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