Then theres the sensor thatll be attached to your reservoir tank somewhere along the firewall. Flushing the coolant on a regular basis removes gunk and mineral deposits from your engine, while prolonging the life of your heater core, thermostat, hoses and water pump. The coolant sensor should be located near where the upper radiator hose is attached to the engine and has a wire connector on it with 2 wires. If you spill coolant when you flush your Century, be sure to put down cat litter to soak it up to discard it. The video above shows you where the petcock on your radiator is located, how to flush the coolant / antifreeze and how to burp the system to get the air out of your Century.Ĭoolant is toxic and animals are attracted to the sweet taste of coolant (antifreeze). When you flush your coolant, which is antifreeze, on your 1999, you are draining out all of the old dirty coolant and preventing costly radiator and cooling system repair down the road. Like the oil in your Century, coolant gets dirty over time and loses its ability to cool down your 3.1 liter engine. Turn off the engine and drain the water, fill up the radiator with antifreeze until you have a 50/50 coolant / distilled water mixture and burp the system. Fill up the radiator with distilled water and run the engine. This video shows where the radiator drain plug (petcock) is located on a 1999 Buick Century. i have a 99 buick century my dash lights dont work and my dome light dont work. How do I turn off low coolant light 2000 Buick Century Custom Sedan FWD-Maintenance & Repair. The coolant reservoir is full and the radiator is full. 2000 Buick Century, Low coolant stays on. Start your coolant flush by draining the coolant / antifreeze that is in your reservoir, then drain the coolant that is in your radiator by opening the petcock or removing the lower radiator hose. Low coolant light ANDREW LAWRENCE MEMBER 2002 BUICK CENTURY The low coolant light remains on. In addition to preventing your car from overheating, coolant / antifreeze also helps lubricate the seals in the water pump and hoses. Coolant / antifreeze also passes through the heater core under your cowl to provide heat to the cabin of your Century. Coolant / antifreeze circulates through Century radiator and engine to maintain the proper temperature. If you notice an oily surface in your coolant, immediately have your mechanic inspect your Century for head gasket leakage.Learn how to flush the coolant (antifreeze) in your 1999 Buick Century. Taking off the coolant reservoir cap on a warm engine could cause the cap to up explosively and fluid to spray out of the reservoir. See our video on how to add engine coolant for tips on adding coolant to your Century.Īlways wear safety goggles when working on your Century. If you need to add anti-freeze, be sure to check your owners manual to determine the correct type of coolant to add - in Buicks, it usually located in a section titled Fluid Capacities towards the end of your manual. The best versions of the LaCrosse are those. Disconnect the electrical connector from the coolant level module. I have a 1999 Buick Century, recently the low coolant light. The video above shows you where the coolant reservoir in your Century is located and how to check the coolant / antifreeze level. The radiator was flushed again same results. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. In order to get an accurate reading, your 3.1 liter engine should be cool to the touch when you check it. Checking the engine coolant (also known as antifreeze) level in your 1999 Buick Century is pretty easy.
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