Here I am

Fuel Preasure guge

Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff

Diesel Dynamics, great customer service.

What Injectors to Get?

Installed a new Fuel Preasure gauge with the isolator, connected it fine and everything seamed to work good, max i saw preassure was 7psi at idle, then next morning i start the truck and notice the preasure toping out at 1psi ...



I figure my lift pump is dead. . then i open up the hood and notice leak next to the isolator, start the truck again and yup, where the plastic hose comes out of the isolator there is the fluid leaking out.



Any way to refill that isolator with antifreeze looking fluid? could that have been my problem from get go that it leaked fluid out and hence why it only showed 7psi?



Any help would be apretiated.



I was thinking get a syringe from the addict neighbor, fill it with antifreeze, and try to push the fluid back into it which would fill up the volume in the isolator. . hence maybe the gauge would work then.



Then bleed out the system of air.





-E
 
Has anyone attempted to refill their isolator ever? comon there has to be someone that has run into this before...



-E
 
Did you fill it up with antifreeze to begin with? I would use a 50/50 mix of coolant. That way the freeze point would be nice -37*f or so. Don't run fuel to the gauge as it can/will damage the gauge from pulsing/vibration of either the lift pump or injection pump. I ran live fuel my Isspro FP gauge and it died less than 500 miles later. Didn't use the isolator as I read of all the problems guys had with them. BTW you can use any pressure gauge for a fuel pressure gauge, ie that old 30psi boost gauge you upgraded from or oil pressure etc. I'm running live fuel to my old 30psi boost gauge. I don't have alot of miles on it yet so its still working, until I can get the cash for an ELECTRIC fuel pressure gauge.
 
Back
Top