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engine light

  #1  
Old 03-20-2005, 10:49 AM
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hi,


my wife has a 97 mercury villager van and the engine light came on and i had an auto parts store check it for me and they said that it was the knock sensor and it cost $169.99. could some one please tell me what this is and where it is located at on the van. what will happen if you dont fix it ?


thanks rick
 
  #2  
Old 03-20-2005, 12:17 PM
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The knock sensor is located on top of the engine underneath the intake manifold. Unless you have a problem with the vehicle I would not attempt to repair it itsa big waste of money. Id have the light reset and leave it alone unless you start to have problems.
 
  #3  
Old 03-28-2005, 06:16 PM
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The knock sensor is for octane ratings if you use the same gas and dont hear a knock then like merc said why bother with it it can be a wast of money .
 
  #4  
Old 03-28-2005, 06:33 PM
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thank you for the info . it is not knocking but when it is in drive and you come to a stop it sounds like it wants to cut out, does that have anything to do with the knock sensor ? i just put new plugs in it about 3 weeks ago.


rick
 
  #5  
Old 03-28-2005, 10:46 PM
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No, but the ruff idle might have set that code. Hoping it doesn't have anything to do with any crossed plug wires [img]smileys/smiley2.gif[/img] . Try cleaning out the idle control valve with carb. cleaner, it sometimes works.
 
  #6  
Old 04-19-2005, 05:27 PM
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also remember that the knock sensor on some models will turn off the injector of the cylinder where a knock is detected [img]smileys/smiley1.gif[/img]
 
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