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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

timeing help on 300 6 91 model

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Old Jun 12, 2004 | 12:37 AM
  #16  
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yep 40 psi running ...
 
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Old Jun 12, 2004 | 11:43 AM
  #17  
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From: Copley, OH
What pressure do you get KOEO? (Key on engine off?) It should be 55 PSI or so.
 
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Old Jun 12, 2004 | 12:28 PM
  #18  
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ah you mean is it holding pressure ... ok will have to check monday ... cause the guy with the gage is not open today ...

good idea tho

John
 
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Old Jul 8, 2004 | 03:24 PM
  #19  
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well here is what it was .... believe it or not it was a cracked sparkplug ...a new plug but cracked by the guy who put it in ... I never thought of that as they were new ...just goes to show ya ... oh well at least I have lots of new parts in there now and the truck runs like a dream... and I got a new trailer to go with it so I am in business now!! thanks for everybody's input
John
 
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