Engine common faults and the main reason

(a) abnormal lube oil consumption

Car in the process of driving, the consumption of engine oil is also more than usual, driving a mileage, baotou north Mercedes accessories dashboard display soon enough lubricating oil, it is usually because the following three points: first, may be due to there is something wrong with the engine piston seal, lead to the piston and cylinder wall clearance is too large, the appearance of burning oil. Second, may be worn engine parts, clearance between the parts is too large, resulting in abnormal lube oil consumption. Third, individual below-standard engine used lubricating oil, lubricating oil consumption anomalies.

(2) the fault engine overheating

Because of the special structure, the car engine in operation, easy appear phenomenon of coolant temperature is too high, once the coolant temperature above normal, engine can’t normal cooling, will lead to engine overheating, affect the normal work of the engine. Cooling system of the main causes of abnormal are: north of baotou Mercedes parts thermostat fault, radiator, fan does not turn, and blockage of the water tank, etc.

(3) the nacelle peculiar smell

Under the influence of high temperature engine, its surrounding easily lead to melt, and burning sends out a pungent smell. Nacelle odor and may be in the process of the maintenance of daub lubricating grease, the smell of the volatile with the engine temperature.

(4) tail gas exhaust color abnormal

Automobile engine malfunction and obvious performance, from engine exhaust color anomaly analysis. After the normal combustion of gasoline exhaust color should be colorless, and when to send. Motivation fails, exhaust color will change. First, the exhaust gas in black, is burned for fuel oil fuel is not fully. Second, the fuel does not meet the standard, or gasoline contains water will discharge white tail gas. Third, exhaust color to blue, may be because of baotou north Mercedes parts of piston ring due to excessive wear or oil ring counterpart, causing the oil jumped, into the engine combustion chamber, or from the valve guide ooze down in the oil burning.

Engine common breakdown maintenance strategy

(a) control lubricating oil consumption

Engine running inevitably consume a certain amount of lubricating oil, lubricating oil consumption anomalies often corresponds to the engine of a fault. Abnormal oil consumption, should first check the oil, oil, oil change when necessary, to avoid oil problem caused by the engine cannot run normally. After eliminate oil problem, should be given the relevant parts, may be due to a serious wear and tear of spare parts, accessories clearance is too large or oil pressure is too high, lead to the oil jumped into the combustion chamber. And the oil leakage is mainly due to seal harden aging, valve.

(2) timely monitoring engine overheating

Coolant temperature anomaly, in car dashboard report suggests that the discovery of coolant temperature anomaly, should stop check and see if coolant leaks. It is important to note that not immediately stop when hot car, also can’t refill coolant, engine temperature but have to wait again after normal operation. If the coolant is not little, should be the engine thermostat, fan radiator of failure. The overheating of the engine, car drivers need to develop and maintenance of basic common sense. To conduct regular maintenance detection engine.

(3) to eliminate the engine produces special smell

Vehicles in use process, if found north of baotou Mercedes accessories have pungent odor or burning smell nacelle, should stop immediately, check around the engine for line soften or charred, for short circuit and burning lines in a timely manner to repair, to avoid greater safety accidents. There are still stink after exclusion of line fault, should consider to whether have attached on the surface of the engine, oil, foreign bodies, volatile or factors such as the combustion heating.

(4) exhaust smoke color abnormal troubleshooting

Engine starting operation will be fuel combustion, can produce emissions, according to the color of the tail gas can be distinguish the engine is part of the fault. Exhaust gas in black, usually because of mixer too thick, fuel can not be fully burning, this kind of situation to check admission related sensors. Exhaust white in colour, usually because of poor fuel gasification, no burning from the exhaust pipes spark plug failure and more likely to fuel the poor quality. If the exhaust is blue, is to solve the problem of burning oil, could be the spark plug or valve seal appear problem, should be timely screening, when it is necessary to replace a new one.

To grasp the method of common engine breakdown maintenance, can reduce safety hidden trouble, at the same time, the preventive maintenance, regular maintenance can make the engine service life is longer.