Question about 2008 Chevrolet Cobalt
The dealership replaced the knock sensor. Is that really all that needs to be done or could there be underlying issues? The car is still under warranty!
Thanks, that helps. It could be that is the only problem. The knock sensors started being installed several years back to provide performance feed back to the ECM/PCM. If a cylinder doesn't fire the knock sensor reports a misfire to the computer and a misfire code is shown. In this event the sensor is returning a value that indicated to the computer it was not functioning correctly. Replacement of this sensor doesn't require the motor to be rebuilt should cost around $200 at a dealer maybe a little more. You can view the knock sensor a little like the O2 sensor with the main difference being that if the knock sensor doesn't work correctly it could cause the vehicle to computer to adjust your timing the wrong way.
Posted on Jul 20, 2010
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Posted on Jan 02, 2017
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