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Discussion Starter · #1 · (Edited)
Hey everyone i was wondering what can cause low fuel pressure.

My truck is a 2006 2500 5.9L and hasn't started in about 2 weeks. batteries are fully charged.

Here is what I have replaced -->

-Fuel Pump
-Fuel Filter
-Pressure Relief Valve
-Heating Grid
-Intake Heating Relay
-Injectors and Tubes
-Injector Pump
-MAP Sensor

I'm wondering if there is a relay or sensor I'm missing.

I'm at a loss of what can be left. It seems like there isn't pressure going from the filter housing to the injector pump.

I'm hoping someone here can help me figure out what else is left to check.

Thanks in advance,

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