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91 accord ex 2.2 help

  #1  
Old 08-27-2009, 04:02 PM
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Join Date: May 2009
Posts: 15
Default 91 accord ex 2.2 help

when the rpm's go over 4,000 it starts smoking does anyone have idea's what it could be, it doesnt smoke at all when u crank it or when under 4,000 so im comfused could it be the valve that plugs into the top of valve cover?
 
  #2  
Old 08-27-2009, 05:09 PM
JimBlake's Avatar
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Join Date: May 2006
Location: Wisconsin
Posts: 17,456
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Yes, it definitely could be the PCV valve. But there's other possibilities too.

A new PCV valve only costs a few bucks. Normally I like to diagnose before closing my eyes & replacing part$$$, but this one is pretty cheap.
 
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