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Ford 83-94 6.9 and 7.3L General Discussion of 83-94 6.9 and 7.3 Liter Ford Diesels

89 building up too much pressure

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Old Mar 31, 2011 | 10:54 PM
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Default 89 building up too much pressure
my 89 7.3 is building up too much pressure and causing blow by why is it doin this??? its confusing the heck outa me!
 
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Old Apr 1, 2011 | 01:20 PM
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from the factory these engines have blowby at idle. rev it up, does it go away?
 
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Old Apr 1, 2011 | 07:02 PM
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na ill be drivin down the road and itll start doin it, sometimes itll do it sometimes it wont but its doin it alot more now. and its loud as hell
 
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Old Apr 1, 2011 | 10:39 PM
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how can you see blowby driving down the road?
 
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Old Apr 1, 2011 | 10:46 PM
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Originally Posted by DieselCrawler
how can you see blowby driving down the road?
exactly what i was thinking....
 
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Old Apr 2, 2011 | 10:14 PM
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cause ill pull into a lot and check it while its still doin it
 
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Old Apr 2, 2011 | 10:18 PM
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if you pull into a lot your not driving though. check it when its revved above idle
 
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Old Apr 2, 2011 | 10:26 PM
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the cdr valve on these engines does not flow alot at idle. anything above idle and it will pull crankcase gasses into the intake and burn them off. where is the blow by coming out of?
 
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Old Apr 3, 2011 | 02:05 PM
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it blew out my head and valve cover gaskets and thats where ive felt it blowin out of
 
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Old Apr 5, 2011 | 10:36 PM
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nevermind i fixed it
 
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