TY1000 Posted February 1, 2006 Share Posted February 1, 2006 Hello all. My 1998 Outback Wagon failed inspection with a Knocking Sensor error. I found this thread: http://www.ultimatesubaru.org/forum/showthread.php?t=35633 and I might try to replace the sensor. My questions are: What would make the sensor fail/trigger? Is the sensor a one time use and there for need to be replaced? Could an out of balance front wheel cause the sensor to fail/trigger? The engine still runs great so I'm wondering what could have set the sensor off. Thanks in advance for all your replies! TY Quote Link to comment Share on other sites More sharing options...
nipper Posted February 1, 2006 Share Posted February 1, 2006 The sensor can fail because its old. Nothing lasts for ever, and anything living under the hood is in a very harsh enviorment. You got almost 8 years out of the sensor, thats not bad. Again my pet peave, how many miles are on this car. i have no idea what you mean by one time use. All the sensors under the hood are constantly monitoring its asigned task. The knock senosor heres engine ping before we hear it, and tells the ECU to adjust the ignition timing. AN out of balance wheel can not cause the sensor to fail. The sensor is acoustic in nature. The engine is isolated by rubber mounts and really has far more vibrations and noises going on under the hood than an out of balance tire can produce. Knock sensors survive collision, pot holes, slamming of doors and the hood, a out of balance tire is nothing. nipper Quote Link to comment Share on other sites More sharing options...
TY1000 Posted February 1, 2006 Author Share Posted February 1, 2006 Thank you for the quick reply. I have 154K on my car. I've been look on the web for a Knock sensor but having little luck. Do you have any sugguestions. Also, about how much should the part cost? Thanks again!! TY Quote Link to comment Share on other sites More sharing options...
benebob Posted February 1, 2006 Share Posted February 1, 2006 Its a dealer part. I think its around $50 depending on make or model a bit. Quote Link to comment Share on other sites More sharing options...
edrach Posted February 1, 2006 Share Posted February 1, 2006 Try www.1stsubaruparts.com; call their 800# and ask for Jason. It's a dealer but will sell and ship with about 35% off list price. Good luck. Thank you for the quick reply. I have 154K on my car. I've been look on the web for a Knock sensor but having little luck. Do you have any sugguestions. Also, about how much should the part cost? Thanks again!! TY Quote Link to comment Share on other sites More sharing options...
pinnhedd Posted February 2, 2006 Share Posted February 2, 2006 any foreign autoparts store can get it for you if they dont already have it in stock. I got mine for like $70. Thank you for the quick reply. I have 154K on my car. I've been look on the web for a Knock sensor but having little luck. Do you have any sugguestions. Also, about how much should the part cost? Thanks again!! TY Quote Link to comment Share on other sites More sharing options...
TY1000 Posted February 2, 2006 Author Share Posted February 2, 2006 Thank you for all your replies!! I"ll give them a try! TY Quote Link to comment Share on other sites More sharing options...
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