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Not much goes wrong with them! if your car is pinging under load this may be a bad knock sensor, but if you tap the block with a small hammer & the idol seems to change or the timing wanders this is the knock sensor failing. if the idol doesn't change this is a bigger issue

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Q: How can you tell if your knock sensor is bad?
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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.


What happens if you drive the vehicle with a bad knock sensor?

If you run your rig with a bad knock sensor the computer will not be able to tell if or when your engine starts to knock (such as a rod knocking). That is if it isn't already cause the sensor is there for insurance. Make sure the sensor is bad and if so have it replaced asap. It is an expensive job cause you have to remove the intake to get to them (some engines have two under the intake). willyray3


Show where the knock sensor located?

can you tell me where the knock sensor is located on a 3.3l mercury villager


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.


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


How do you test a 2002 Chrysler 300m knock sensor?

You can test the 2002 Chrysler 300 M knock sensor with a diagnostic tester. The diagnostic tester will tell you if the knock sensor is working.


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.