What causes a diesel engine to lose power and smoke?

Most common causes of black smoke are faulty injectors, a faulty injector pump, a bad air filter (causing not enough oxygen to be supplied), a bad EGR valve (causing the valves to clog) or even a bad turbocharger. Some of these are easy fixes.

What does it mean when a diesel engine blows white smoke?

White smoke often occurs when there is either too much fuel being injected into the combustion chamber, or not enough heat to burn the fuel. Un-burned fuel travels through the exhaust system & exits out the tailpipe which will produce a scent of rich, un-burnt diesel.

What causes black smoke and no power?

Black smoke indicates that the fuel is not burned properly. The internal combustion process in diesel cars requires a certain mixture of fuel and air. The ratio of fuel and air should be proper, otherwise, the mixture will be too rich, which will result in black smoke. Faulty injectors.

What does gray smoke mean on a diesel?

Gray smoke is caused in part by diesel cars lacking on fuel when they are less than the oil they need to operate. In addition to causing excess oil to burn on your diesel engine, you could also see a faulty PCV (Positive Crankcase Ventilation) valve to control emissions.

Why is my Turbo diesel losing power?

If the fuel filter gets clogged and the fuel does not reach the engine chamber in the right quantity then the engine will not be able to perform at its optimum level. You will feel a loss in power while accelerating and at times intermittent jerks.

Can a bad diesel injector cause white smoke?

White Smoke: White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly. Unburned diesel fuel will make its way through the exhaust completely unused.

Why is my car losing power and smoking?

Smoke often leaves car engines as a result of overheating. This can be caused by faulty wire casings, heated residues on the engine block and overheated liquids including oil, transmission fluid and brake fluid. There may also be a fault in your coolant system, or your engine may not have enough lubricant.

Can a faulty turbo cause black smoke?

Faulty Turbo will lean out the air preasure, causing a loss of power, rough idle and black smoke in the exhaust.

Why is grey smoke coming out of my exhaust?

Blue or Grey Smoke If the smoke from the exhaust pipe is either grey or bluish-tinged, it generally means that your engine is burning oil inside the combustion chamber. Burning oil could be due to a number of causes, from leaky valve seals to bad piston rings.