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1994-1995 5.0 Mustang SN95 Tech Forum

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Unread 06-27-2008   #1 (permalink)
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Default Signs of a bad PCV valve

Guy's: Would you please tell me the tell tale signs of a bad PCV valve. Thx>>AJ

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Unread 06-27-2008   #2 (permalink)
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Best way is to remove the valve and shake it. If it rattles, it's still ok.
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Unread 07-08-2008   #3 (permalink)
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If you are having blow-by problems, its time to replace it.
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Unread 07-08-2008   #4 (permalink)
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Quote:
Originally Posted by delarosa121903 View Post
If you are having blow-by problems, its time to replace it.
Unless of course your rings are getting worn.
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Unread 07-09-2008   #5 (permalink)
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Meant to say I can't reach the PCV valve to test it in my last post. Should have proof read before posting.
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Unread 07-09-2008   #6 (permalink)
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No, no blow by. It only has 46,000 miles on it but its 14 years old and I wanted to change it. Problem is I can reach it to shake the darn thing to see if its OK. It does lose a little oil, roughly a pint in 3K miles but I'm running synthetic so I'm not concerned about that. So, are what you all saying is a bad PCV valve will make the car consume oil? Or will it also cause idle and stalling problems? Thx>>AJ
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