Why does an engine explode? Problems with the engine that cause explosions, their causes and solutions.
Engine problems can be caused by excessive acceleration or under load. This could include going up a ramp, towing trailers, and sudden acceleration. The engine is noisy and rough.
Fuel explodes in uneven ways instead of burning correctly. This occurs when there is too many heat and compression within the combustion chamber. Premature ignition is also known as this. The heat in the combustion chamber causes the fuel to ignite before the spark plugs light up. A piston can be bored by blasting!
Blasting is one the most serious problems that an engine could face. Blasting can lead to cylinder gasket failure, bearing damage, ring fracture, piston cracking, and ring breakage.
Engine Explosion
1- Inoperative EGR Valve
The EGR works between the intake manifolds and the exhaust manifold. The EGR system uses a metal pipe to collect the exhaust gas from exhaust manifold, cools it (with the egr warmer), adjusts the gas’s volume and then sends it to intake manifold. This reduces combustion temperature and prevents knocking. An EGR valve that is clogged with carbon waste could cause an explosion if it fails to do its job properly.
2- Defective Knock Sensor
A knock sensor is installed in your engine. It detects detonation and instructs the ECU how to delay the ignition timing. Premium fuel is best, but normal fuel or medium fuel can cause explosions or jolts. The knock sensor alerts the ECU to any problems and delays the ignition timing. This protects the engine from detonation while reducing its power. A knock sensor that is not working properly can cause a popping sound when the engine accelerates suddenly, on ramps or in heavy working conditions.
You can check if the knock sensor works by using a wrench to hit the engine block near the sensor (not directly at the sensor). You will need to monitor the ignition signals while doing this.
Note: The same problem can be caused by excessively high ignition timing. Newer engines cannot adjust the ignition timing. The ECU controls it. You can only change the timing by reprogramming the ECU.
3. Excessive soot in Combustion Chambers and Pistons
This problem is common in older models, high-mileage and short-distance vehicles. It causes the vehicle to stop without warming up. The combustion chamber is usually cleaned using carbon cleaning products called “Carbon Clean”. MotorVac is a machine that can be used by workshops. This machine uses special chemicals for cleaning the fuel injection system as well as combustion chambers.
4- High Compression
An engine will have a higher constant compression ratio if it is overhauled. Larger pistons can be used. The engine’s constant compress ratio will be increased if the cylinder heads are ground. Although these processes increase engine power, they can also lead to explosions. This happens more often in turbo engines and vehicles that are under stress.
5-low Octane Fuel
Octane is a criterion that measures gasoline’s knock quality. It measures the fuel’s resistance to knocking when it is mixed with air in internal combustion engines. Octane numbers are used to indicate the quality of a fuel’s combustion and its ability to withstand extreme conditions. Detonation problems can be caused by fuel with a low octane number. This could be caused by fraudulent fuel at some stations. This is why you should immediately change your fuel station if you experience this problem. Avoid buying cheap fuel. Shell, Mobil BP and Total are reliable brands.
6- Engine Overheating
Engines can heat up due to lack of coolant, clogged radiators, cooling fans, circulation pumps, and thermostat malfunctions.
7- Excessive Turbo Usage
Turbo can cause engine problems and blasting by excessive use. The MAP sensor informs the ECU when the turbo pump’s pressure (Boost pressure) exceeds its preset level. Engines that fail to report pressure correctly to the ECU by the MAP sensor could burst.
8- Poor Fuel Mixture
Poor fuel mixtures (too much fuel / too little fuel) cause more problems with detonation than rich fuel mixtures. Poor fuel mixtures can be caused by dirty fuel injectors or low fuel pressure (possibly a leaking fuel regulator or weak fuel pump), engine leaks or a defective MAF sensor.
