Info: Fuel suction pressure connection size?

[JTC]

Does anyone know the quick-connect type/size for the fuel suction pressure port up close to the CP3? I know people sell a guage and connector for this but they want too much money for what it is. Thought this would be helpful for a lot of folks who need to measure suction pressure to the pump for diagnosing CP3, fuel filter, fuel line collapse etc for the Duramax.

Thanks!

 

[rgullett83]

Good luck I doubt you will find it

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[TheBac]

See this: http://www.duramaxdiesels.com/forum/showthread.php?t=24024

 

[blk smoke lb7]

Vaccum gauge is only if you dont have a lift pump i just installed a fuel block with a 0 to 30 psi liquid filled gauge to keep the fuel psi in check.