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Tap the block or head with a hammer while the vehicle is running. If the engine slows down as you are doing this, it is sensing "knock" and trying to compensate by retarding ignition timing. Tap the block or head with a hammer while the vehicle is running. If the engine slows down as you are doing this, it is sensing "knock" and trying to compensate by retarding ignition timing.
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∙ 15y ago
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How important is the knock sensor to the ignition system?
Well, it like this. If the knock sensor is bad and the ignition system does not know this, it will destroy the engine, that all.
What does a car do when the knock sensor is bad?
The knock sensor retards the engine timing when there is a knock or ping detected. This will make the car a little sluggish. It is rare that the knock sensor goes bad.
Will it hurt engine to drive with bad knock sensor?
Yes it can hurt your engine to drive with a bad knock sensor. The knock sensor should be replaced as soon as possible.
Can a knock sensor correct itself?
If the sensor it'self is bad then NO.
Does a knock sensor ECM error mean that sensor is bad or that the sensor is just reporting a knock in the engine?
The sensor is bad. A properly-functioning knock sensor allows the ECM to advance timing until it senses a knock. It then retards timing until the knock just barely goes away allowing for optimal gas mileage.
What courses slight knocking noise of 2.3 litter engine when accelerating at a full load operating?
knock sensor is going bad or is bad
Sign of knock sensor going bad?
the only sign is if it goes bad it should trigger the check engine light, you wont notice loss in peformance in engine. all it does is when there is a knock in a cylinder, from bad fuel, it leans back on fuel to stop the knock.
If your knock sensor is bad what will your car do?
Ping.
Can a bad knock sensor be responsible for rough shifting?
No, the knock sensor only retards the timing when it detects the engine pinging.
Will a bad knock sensor make your vehicle cut off?
if a knock gos bad can your car go off
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.
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.
