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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.
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∙ 14y ago
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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
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.
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 do you still get a bad code for the knock sensor after you put a new knock sensor on your 1999 mercury villager but still get a bad code from the computer?
Because there is nothing wrong with it. This is a common code that can relate to a number of components. The knock sensor itself is rarely the problem.
