What is this Blue spring in the fuel line I keep reading about? - Ford Powerstroke Diesel Forum
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  #1  
Old 03-13-2011, 03:36 PM
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What is this Blue spring in the fuel line I keep reading about?

I keep seeing people talking about upgrading to a blue spring in the fuel line. What is this? Is it a change that needs to be updated by the dealer? I have a 2006 model, do I still need to consider this?
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Old 03-13-2011, 05:20 PM
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i am curious about this also
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Old 03-13-2011, 05:39 PM
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Read this whole post should help.
upgraded fuel pressure spring
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Old 03-17-2011, 04:06 PM
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the stock regulator spring is silver and will regulate fuel pressure to around 55psi. the new updated spring is colored blue so it's possible to distinguish it from the original. the new spring is stiffer and should push your pressure up to 65psi or slightly higher
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Old 03-17-2011, 04:54 PM
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I did a write up on it, check it out in my threads or the General 6.0l Discussion.
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Old 03-23-2011, 02:34 AM
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And where can this little blue spring be purchased from?
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Old 03-23-2011, 04:14 AM
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[ok here is part number im doing 1 right now 3c3z-9t517-ag regulator kit my reading at idle are 74 psi idle and 65psi simulated load.
also this kit has a very important peace the white plastic pease is for the air bleed. 9 out of 10 that i do this is blocked. install it.i will put presure reading up in a bit ok




Last edited by JUGERNAUT; 03-23-2011 at 05:47 AM.
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Old 10-26-2011, 11:50 AM
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Quote:
Originally Posted by psd_va View Post
And where can this little blue spring be purchased from?
??? anyone???
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Old 10-26-2011, 11:52 AM
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tousley Ford.com #3c3z-9t517-ag as posted above.
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  #10  
Old 10-26-2011, 06:32 PM
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Found it on ebay for $36
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