Typically that means that the computer has detected a condition that needs to be corrected, although the condition typically isn't time critical when THAT light comes on. You can usually wait a couple days, until you can make an appointment with your mechanic or auto dealer. But take care of the problem soon, since it will affect the way the vehicle performs. The "check engine soon" light, is telling you that the computer has detected a signal from one or more of a number of sensors located on the engine or transmission that is not normal. Most times this does not cause a drivability problem, however you should have it checked by a service center as soon as possible, as the problem could cause extensive problems if left unattended, also poor milage.
All fluids should be checked when you purchase fuel. All fluids except for the transmission fluid should be checked with the engine off and at operating temperature. The transmission fluid should be checked the engine running and the transmission in PARK if automatic or NEUTRAL if manual.
To check the fluids in a 2003 Mercedes C240, start by ensuring the vehicle is on a level surface and the engine is off. For the engine oil, remove the dipstick, wipe it clean, reinsert it, and then check the level. For coolant, inspect the reservoir located near the radiator; it should be between the minimum and maximum marks. Other fluids, like transmission and brake fluid, can be checked similarly by locating their respective reservoirs and assessing the levels.
It could if you are running it in very cold or very hot weather. In the winter, the engine has to warm the fluids and since the fluids are cold and thick, it takes more engine force to move them. In the summer, they are too thin so the engine isn't fighting the viscosity of the fluids. It's always best to make sure antifreeze/coolant is full. Always check them when the engine is hot. NEVER check Radiator HOT!
Possible, but not likely. The check engine light is mainly for emission failures not fluid levels. Have it checked for codes to know the cause.
Your check engine light will not come on because your coolant needs to be changed. The only way to be totally sure why it is on you should get it checked with a computer at a dealer or service station. The check engine light may come on if it is over heating because there is no coolant in it but not if it just has to be changed.
The coolant level in a Northstar is checked by taking the top off the surge tank when the engine is cold. The coolant should be about 1 to 2 inches down. If you can dip a finger in and get it wet, you're fine.
Check your water pump. Does the car overheat?
Check the engine coolant... Is it full? yes coolant level is full
To check the fluid levels in a 2002 Toyota Tundra with a 4.7L engine, start with the engine off and parked on a level surface. For the engine oil, remove the dipstick, wipe it clean, reinsert it, and then remove it again to check the oil level against the markings. For the transmission fluid, locate the dipstick, remove it, wipe it clean, reinsert it, and check the fluid level while the engine is running and the transmission is in park. Other fluids, like coolant and brake fluid, can be checked by visually inspecting their respective reservoirs.
If there is a cap on the radiator you can check to see if the radiator is full , and if it isn't , " top up " the engine coolant . Otherwise , you check the engine coolant level at the engine coolant reservoir when the engine is cold and maintain the level at the cold mark
To add coolant to a Porsche 911, locate the coolant expansion tank, which is typically found in the front trunk or near the engine bay, depending on the model year. Remove the cap of the expansion tank and add the appropriate coolant mixture, ensuring it meets Porsche specifications. Always check the coolant level when the engine is cold to avoid injury from hot fluids. After refilling, replace the cap securely and check for any leaks.
Check coolant leaks with a visual inspection. Clean the engine, then see where the coolant reappears. Look under the water pump. Check engine oil to see if coolant is leaking into the oil.