Radiator warning light9/23/2023 ![]() ![]() You do not have to stop immediately, but you may only have 20 to 30 minutes of driving time before your battery goes dead and your engine stops running (or even less time if you are driving at night with your headlights on). The "GEN" or "ALT" warning light, or an icon of a battery will illuminate if the charging voltage in your vehicle is low. But if the engine is running hot because it is low on coolant, this trick probably won't help much.įor more information about troubleshooting an overheating problem, Click Here. HINT: Turning the A/C OFF and turning the heater on HIGH may help cool down an engine that is temporarily overheating due to unusually hot weather or from towing a trailer. Possible Causes: Low coolant level (due to coolant leak or bad head gasket), stuck thermostat, bad water pump, broken serpentine belt, defective radiator cooling fan, clogged or dirty radiator, exhaust restriction (plugged catalytic converter). If the coolant level is low, add coolant (a 50/50 mixture of antifreeze and clean distilled water) after the engine has cooled down. Steam pressure inside the cooling system can blow out and burn you! Note the level of the coolant in the coolant reservoir.ĬAUTION: DO NOT open the coolant reservoir or radiator cap until the engine has cooled off for at least 30 minutes. Open the hood and check the radiator and heater hoses, radiator and engine for coolant leaks. Stop driving, pull over and shut your engine off. Do NOT continue driving if your engine is overheating as this can cause expensive engine damage (piston scuffing, valve stem galling, failed head gasket, cracks or distortion in cylinder head). The temperature warning light will come on if your engine is overheating. If you attempt to drive the engine in this condition, you will probably damage it - if it hasn't already suffered major internal damage.įor more information about your engine's lubrication system and causes of low oil pressure, Click Here. If you engine is also making ticking, clattering or rapping noises, it is not getting sufficient oil. Possible Causes: Low oil level (due to oil consumption or leaks), oil viscosity too thin, worn oil pump, excessive engine bearing clearances or defective oil pressure sending unit. You should pull over to the side of the road, shut the engine off and check the oil level on the engine dipstick. The oil pressure warning light comes on if your engine has lost oil pressure or oil pressure is too low for safe engine operation. If any of the above warning lights come on while you are driving, DO NOT IGNORE THEM! Immediate action may be necessary to prevent damage to your vehicle, a breakdown or an accident. Auto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, Indexĥ Warning Lights You Should Never Ignore! by Larry Carley copyright ![]()
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