Adjustable Fuel Pressure Regulator for 7.4l

[run96k3500]

Are you running the whipple electronics, or an 0411?

Neither. It's a custom tune from Westers.


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[Christian Steffen]

On the black box ecm?

 

[jkeaton]

I have not tested yet. do you have links to test the pressure and check for leak down?

Google does.....

 

[run96k3500]

On the black box ecm?

Yes on the stock black ECM. There's a build Thread for the guy that built this truck on this site. His name is Dale_gribble


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[run96k3500]

Looks like it is the fuel pump. I took the valve out of the schrader fitting, hooked up the fuel pressure gauge and I'm getting 12lbs. So I think I'll need a new pump.


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[run96k3500]

Looks like it is the fuel pump. I took the valve out of the schrader fitting, hooked up the fuel pressure gauge and I'm getting 12lbs. So I think I'll need a new pump.


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[Christian Steffen]

Looks like it is the fuel pump. I took the valve out of the schrader fitting, hooked up the fuel pressure gauge and I'm getting 12lbs. So I think I'll need a new pump.


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At least you know what it is, could be worse. On that note, I wouldn't screw around with just trying to replace the pump and not the full assembly, it can just lead to more problems. Ask me how I know.

And i think ive read that build thread actually.

 

[run96k3500]

At least you know what it is, could be worse. On that note, I wouldn't screw around with just trying to replace the pump and not the full assembly, it can just lead to more problems. Ask me how I know.

And i think ive read that build thread actually.

I ended up ordering a complete assembly from Amazon for $50 which is crazy cheap. normally id go with AC Delco or better brand but seems that a few people have had decent luck with the cheaper ones. i dont drive it that much so I'd like to save $100-$200. as long as it make pressure i assume its ok, im not sure how to check flow rate thought.