Smoke dispersing from under a car's hood could be caused by mechanical failure, overflowing oil, a malfunctioning carburetor or valves that need to be replaced. Determining the smell and color of the smoke, such as black, white, gray or blue, can help decipher the cause of smoke exiting from under the vehicle's hood.Continue Reading
Many times, drivers only notice smoke exiting from under the hood while sitting in idle at a stoplight or after turning off the engine while parked. In fact, the amount of smoke can increase over time. If the smoke from under the hood has an oily smell, it is likely that the vehicle has an oil leak, according to Joseph Auto Service. White smoke can indicate a leak within the engine's coolant system, most commonly known as an antifreeze leak.
Blue or black smoke with an acidic smell is an indication that the vehicle has experienced an electrical malfunction. In this case, wires may be burning under the engine's hood. Smoke coming from the exhaust may appear to be dispersing from under the hood in some cases. White smoke or vapors from the exhaust could indicate that the vehicle engine block or cylinder may be cracked or not functioning.Learn more about Car Parts & Maintenance
A car can hesitate or stall while going uphill for a number of reasons, but typically the problem occurs when the engine's valves and rings are worn. Because driving uphill puts the engine under additional stress, less compression is dispensed, which weakens the engine over time. Stalling can also occur when the engine's sensor no longer works.Full Answer >
Figure out your car problem using an on-board diagnostic reader, or by interpreting the car's smoke signals and noises. Knowing the colors of the car fluids may also help diagnose car problems related to fluid leakage.Full Answer >
Cars idling rough at stops can have many causes, including damaged sparkplugs, improperly installed sparkplugs or damage to the car's fuel injector, carburetor, vacuum hoses or ignition wires. It is important to take a car to a certified mechanic soon after it begins idling roughly in order to prevent more expensive damage.Full Answer >
On cold mornings, if a car does not start, the two most likely culprits are the battery and the choke on the carburetor. If the car has a fuel injection system, it is necessary to take the car to a professional for diagnosis.Full Answer >