GM split some of the less serious codes out and put them under this warning light so the fact that you have this and the anti lock light coming on, I suspect we have a wheel speed sensor issue. If you notice an oily surface in your coolant, immediately have your mechanic inspect your Century for head gasket leakage. The service engine soon light normally means there is an issue with something that is not powertrain or emissions related. I wanted to know if the issue can be somewhat diagnosed based off of. They dont come on as soon as I start the car but as soon as the wheels start moving forward, they all come on at once. 1994 Buick century with a 3.1 recently replaced fuel pump. I have a 2002 Buick Century and my 'service vehicle soon' light is on along with the 'anti lock' light and the 'Trac off' light. 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. If it is OK, you could have one of several problems- A sticking thermostat, plugged heater core, temperature door actuator motor in the dash, etc. 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 video above shows you where the coolant reservoir in your Century is located and how to check the coolant / antifreeze level. Engine coolant / antifreeze circulates through your engine to keep it cool in the summer but won't freeze in the winter. Learn More 2: Low Coolant Light On 2002 Century Average Cost to Fix. In order to get an accurate reading, your 3.1 liter engine should be cool to the touch when you check it. Worst 2002 Buick Century Problems 1: Intake Gasket Failure 2002 Century Average Cost to Fix: 600 Average Mileage: 83,000 mi. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Checking the engine coolant (also known as antifreeze) level in your 2002 Buick Century is pretty easy. Beware if the problem persists that you may have water mixing with oil within your engine. 2002 Buick Century Low Coolant Light On: 3 Complaints Buick Century 2002 cooling system January 17: GM Again Recalls Verano and Cruze Over Roof-Rail Airbags Low Coolant Light On.
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