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Discussion Starter · #1 ·
with the return line disconnected and the truck running does fuel flow from the Pressure regulator at idle. thanks
 

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A Ghost these days...
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2,434 Posts
Yes.

Are you referring to stock, or a regulated return system? Both will flow fuel @ idle.
 

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A Ghost these days...
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2,434 Posts

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Discussion Starter · #5 ·
yes, I have developed a what sounds like inj rattle but it is only occuring when truck is drove for few miles and after when coming to a stop. this all came about after I resealed the ipr and replaced the hpop gaskets. it sounds like low fuel pressure issue.
 

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Smokin' Ole
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86 Posts
You can save a few bucks by stretching the spring a little bit in the regulator. Did it in my truck and some buddies' 6.0s, no problems with fuel pressure that I've noticed since.
 
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