What causes excessive smoke from exhaust?

What causes excessive smoke from exhaust?

Many times, this thick smoke is due to the likes of a blown head gasket, damaged cylinder, or a cracked engine block, which is causing coolant to burn. Thick white exhaust smoke usually indicates a coolant leak, which could cause overheating and put your engine at a serious risk of damage.

What can cause your vehicle to smoke?

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.

What causes an 89 Chevy 350 to backfire?

SOLVED: 89 Chevy 350 to backfire constantly – 1988-1998 Chevrolet Pickup – iFixit If it backfires when you let off the gas peddle it has air getting into the exhaust, either an exhaust gasket or cracked manifold before the catalytic converter or the emission control’s Air Injection system.

Why does my GM 4.3L engine not start?

There are three very basic components that the engine, in your GM vehicle, needs to start and they are: Air, Fuel and Spark. When your 4.3L, 5.0L or 5.7L GM vehicle cranks but does not start, it’s because one of these components is missing from the mix.

What causes an intake back fire in an engine?

STEP 2: CHECKING FUEL SYSTEM PRESSURE An intake back-fire explosion can be caused by the fuel air mixture being to lean when the engine is demanding power. Every internal combustion engine runs on a mixture of 14 to 1 which is fourteen parts air to one part fuel.

What causes a car engine to crossfire at idle?

By design the resistance it takes to fire the coil via the spark plug is figured into the system. When this resistance becomes excessive due to severely worn spark plugs or a bad ignition coil it can cause these drivers to malfunction at which point they can crossfire into an opposing cylinder either under power or at idle.