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'Knocking' in petrol engines is caused by petrols low flashpoint - its high combustibility.
The octane rating is too low for the compression.
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∙ 13y ago
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What will happen when petrol is poured into a diesel engine?
The engine will knock.
How engine knocking can be reduced?
Lead dust added to the intake charge will also reduce knock with various hydrocarbon fuels. Manganese compounds are also used to reduce knock with petrol
Does the engine on a 2003 impala knock in the top of the motor if the knock sensor is bad?
The knock sensor just advances and retards the engine timing only. If there is a noise in the engine then you have engine are valve train problems. The knock sensor will not make the engine knock.
How does a modern engine management with a knock control system react to engine knock?
This is controlled by a knock sensor.
Why does your engine knock?
I have a recent engine knock on my 91 escort started out intermittant. I have a recent engine knock on my 91 escort started out intermittant.
What is unleaded petrol made up of?
unleaded petrol is 91 octane petrol with not a trace of anti knock compound(tetra ethyl lead)...so that it produces no harmful emissions
Why is your engine knocking on BMW745?
knocking as in spark knock? or engine knock? spark knock is adjusted through a knock sensor via ignition timing. eng. knock is due to brg. knock as in low oil pressure or sluge in engine or just a tired motor
Does the engine knock with a bad knock sensor?
NO it will not. If you have a knocking sound then you have trouble inside of the engine.
Would the knock sensor stop the engine from starting?
No. It only senses engine vibration/knock.
What are the knock senors for on a 2004 Chevy truck 4x4?
Severe spark knock (pinging) can damage the engine. Knock sensors detect spark knock (pinging) in the engine. They send that info to the ECM (Engine Control Module). The ECM makes temporary adjustments in engine timing to eliminate the spark knock.
Will a bad knock sensor prevent an engine from shifting?
A bad knock sensor would illuminate the check engine light and allow the engine to ping (spark knock). The engine doesn't shift, the transmission shifts.
Why is your car knocking when you drive - could there be a problem with the suspension?
'Knocking' is a technical term for fuel igniting too early in the combustion chamber. It can be resolved by adding anti knock additives to the fuel or by retarding the timing at the relevant revs. Most modern engines have built in knock sensors that do this automatically.
