I had all coolant hoses replaced 15,000 miles ago so the coolant isn't all that old. If it IS merely a sticky float, is there a way (short of removing the overflow tank and washing it out with soap and water or replacing the tank, altogether) to add something to the coolant that might help the float be less prone to sticking? Something is obviously still not right - even though you've taken some positive steps. Using a diagnostic tool to read the information provided, and then figuring out the cause of the warning light. I'm thinking the culprit may be a temporarily sticking float as the warning light seems to be triggered at every start up following the car not having been run for a couple of days. Answer Popular Answer DaveJM on MaHello, circuit testing is all I can recommend. I now notice the 20-30 second low coolant light comes on more often than the previously noticed 6 week intervals. But for the past few weeks, I have temporarily come to visit my mom in the Pacific Northwest. My 1996 SW2 has "lived" in Las Vegas dryness it's entire life. I've checked the levels.no problems and the temp gauge stays right where it ought to stay. I've mentioned, in the past, that my low coolant light blinks for 20-30 seconds at almost regular 6 week intervals. The fluid light came on we stopped at the mall to refill it, thinking it had to be a air pocket since we havent driven to much since replacing the thermostat. On other threads, I checked for the areas they suggested with no luck. ![]() Ok.if someone else can bump an old thread I guess I can, as well. I have a coolant leak between the engine and firewall on the drivers side. Note that driving with a stuck open t-stat will reduce heater output, hurt fuel economy, and may shorten O2 sensor and CATCON life due to the resulting rich fuel condition. Chevy Cobalt Coolant Reservoir Replacement. Has yours been checked and replaced if the old type? 50K views 5 years ago Saturn Ion Coolant Light Fix 2005 2006 2007 2008 2009 2010 Coolant Reservoir Surge Tank Replacement. ![]() In very cold weather with the heater on full it may not rise much.Īll this assumes a properly working ECTS. then it will drop slowly until the fan turns off. So if the car is moving slowly or stopped the temp gauge will rise gradually until the fan turns on. Replacing coolant tank on 2004 Saturn Ion. With the A/C off the fan comes on only when the ECTS indicates coolant temperatures above around 221 F (i.e., temp gauge near 3/4 scale, slightly above on '95 and earlier, slightly below on '96 and newer). Coolant Level Light Troubleshooting richpin06a 127K subscribers Subscribe 695 160K views 10 years ago Saturn S-series Coolant Level Light Troubleshooting Disclaimer: This video is not meant. ![]() With the A/C on (and air temps over about 40F) the radiator fan should be on at all times. A working t-stat will reduce flow to maintain the engine at normal operating temperature. Air passing through the radiator (as a result of forward speed or fan operation) removes heat from the coolant in the radiator, and can cause coolant temperatures to drop well below 1/4 scale on the gauge depending on the air temperature, air flow through the radiator, and engine load. normal operating temperature appeared to be slightly below 1/4.Ĭlassic indication of a stuck-open thermostat.
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