Fuel Pressure Gauge

Do you have to have a FP gauge? Or is it just good to have? I'm trying to decide if I should get one or not.
I still have the stock fuel system in.

With a stock fuel system, it's a luxury... Are you having any fuel related concerns you're trying to keep tabs on?

With a stock fuel system, it's a luxury... Are you having any fuel related concerns you're trying to keep tabs on?

Oh ok. and not really, I was just reading around and one my friends also told me a FP gauge is a good thing have on a 6.0

It is good to have, but not necessary with stock fuel.

Ok thanks. I'll probably just stick to the basics then, EGTs, boost, trans temp and all that.

I see you live in somewhat of a winter climate, am I right...? Consider a voltmeter guage before a fuel pressure... I did the volt, EGT, water temp, oil temp in a four guage A pod, and a FP under the hood, just a thought for when you're ready for it all...

Lol no I took those pics when I drove up to the snow for the day.
Here where I live in the valley it doesn't get that cold. And thanks:ford:

Anytime buddy, that's what it's all about.

do not listen to anyone who says a FP gauge is not a necessity on a stock 6.0... it sure as hell is..

These injectors HATE low fuel pressure, run them low and they fail... they NEED at least 45 psi of fuel... get the updated blue sring in the regulator, 6.4 banjo bolts and a FP gauge and KNOW your injectors will be happy.

do not listen to anyone who says a FP gauge is not a necessity on a stock 6.0... it sure as hell is..

These injectors HATE low fuel pressure, run them low and they fail... they NEED at least 45 psi of fuel... get the updated blue sring in the regulator, 6.4 banjo bolts and a FP gauge and KNOW your injectors will be happy.

Do you have a FP guage on a stock fuel system?

I sure do

I sure do

Interesting... Where do you have it plumbed into your stock fuel system? Did you have a low fuel pressure issue, and did this guage help you locate the source of the low pressure issue?

Not trying to be a d!ck, just wondering...

If someone is to 'not listen to anyone.....' it should be backed up with reason... shouldn't it?

do not listen to anyone who says a FP gauge is not a necessity on a stock 6.0... it sure as hell is..

These injectors HATE low fuel pressure, run them low and they fail... they NEED at least 45 psi of fuel... get the updated blue sring in the regulator, 6.4 banjo bolts and a FP gauge and KNOW your injectors will be happy.

Is that why stock injectors go bad on these engines or are they just junk from the factory? kid i know in town had 2 go bad and im willing to bet its cause he romps it around.

Why does everyone insist on doing the "Boost, EGT, Trans Temp" gauges?

EGT is a good one to have, Boost is practically useless unless your racing it, and trans temp is basically a money waster.

The four most important gauges on a 6.0:

1. Fuel Pressure
2. EGT
3. Oil Temp
4. Coolant Temp

There are so many different problems you can diagnose with just these gauges. Water Pump? Gaskets? Fuel Pump? Injectors? The list goes on and on.

But what the hell do I know? lol

:whs:
A FP gauge is one of the single most important gauges for catching a fuel/injector related issue before something goes way bad. (Read $$$$$).

Stock or not, if your HCFM gets weak, you won't realize it without a gauge. You'll think you're truck is running fine. All the while you're unknowingly giving your injectors a slow death.

I'm under the impression the OPs truck is stock. Stock or modded, 6.0 injectors are probably the pickiest stick out there. There are a few "insurance policies" for keeping your 6.0 alive and happy. A FP gauge is one of them.

Is that why stock injectors go bad on these engines or are they just junk from the factory? kid i know in town had 2 go bad and im willing to bet its cause he romps it around.


YES, Low fuel pressure, and low voltage (from the FICM) kils the injectors.. As well as sticky spool valves on the oil side of the injector (stiction) which is carbon deposits from DINO oil aka non synthetic that builds up on the spool valves... Rev x and synthetic oil clears this up


Interesting... Where do you have it plumbed into your stock fuel system? Did you have a low fuel pressure issue, and did this guage help you locate the source of the low pressure issue?

Not trying to be a d!ck, just wondering...

If someone is to 'not listen to anyone.....' it should be backed up with reason... shouldn't it?

There is a test port on the fuel bowl in the engine bay, they make adapters to make the pressure sender to thread in. I have it becuase if there is a problem i will know, i dont have a pressure problem, but i know its good :D

My truck ran 54psi at idle, i put 6.4 banjo bolts in and it went to 58 psi... i want to get the updated blue regulator spring to bump it to 65 psi.... so YES it is reason enough to have one no doubt.

Why does everyone insist on doing the "Boost, EGT, Trans Temp" gauges?

EGT is a good one to have, Boost is practically useless unless your racing it, and trans temp is basically a money waster.

The four most important gauges on a 6.0:

1. Fuel Pressure
2. EGT
3. Oil Temp
4. Coolant Temp

There are so many different problems you can diagnose with just these gauges. Water Pump? Gaskets? Fuel Pump? Injectors? The list goes on and on.

But what the hell do I know? lol

Hmmm, that is indeed a good set of guages to have... but what do we know...

I'm gonna get a FP gauge. My truck is going to stay stock for a while.
And later on I'll get an insight or something. But for now I think I should be ok.
Also I've had those other gauges from my old truck and I just wanted to know if a FP gauge was worthy before I chose the pod.... quad pod or the triple pod..

I'm gonna get a FP gauge. My truck is going to stay stock for a while.
And later on I'll get an insight or something. But for now I think I should be ok.
Also I've had those other gauges from my old truck and I just wanted to know if a FP gauge was worthy before I chose the pod.... quad pod or the triple pod..

Can't wrong with a quad pod, the more the merrier, right?:D

Can't wrong with a quad pod, the more the merrier, right?:D

Yeah that's why I wanted to make sure beforehand lol

Thanks guys for your help.

Why does everyone insist on doing the "Boost, EGT, Trans Temp" gauges?

EGT is a good one to have, Boost is practically useless unless your racing it, and trans temp is basically a money waster.

The four most important gauges on a 6.0:

1. Fuel Pressure
2. EGT
3. Oil Temp
4. Coolant Temp

There are so many different problems you can diagnose with just these gauges. Water Pump? Gaskets? Fuel Pump? Injectors? The list goes on and on.

But what the hell do I know? lol

this is a good set of gauges but if you are working the truck i would put a trans. temp gauge and loose prolbably the coolent temp because your dash gauge is linked to coolent temp. i cooked a transmission working it. so i feel the trans temp is important. but in the same breath the more you monitor the safer you are.

As others have said fuel pressure is quite important on a 6.0 stock or not. I have one and with a performance tune from SCT I can drop my pressure below 50psi, with xtreme race I could drop it below 40psi if I tried and anything over 1/2 throttle would start pulling the pressure down. Stock I can pull it down to about 52psi or so but only at WOT. Anything below 48psi is considered to cause damage to the injectors, mine will idle at around 55psi. Also fuel pressure came in handy a few weeks back when the truck decided to gel up for the first time, would only build 25psi of pressure and then drop to 0 when in Drive. Engine wouldn't start to run rough till after driving over a mile with 0psi of pressure. I personally have found plenty of use for mine :shrug:

I can't tell but I think you have a 03-04 truck, in the 05 trucks we have factory boost gauges so no real need for one of them till your breaking over 40psi. Trans temp will just sit there and not move at all in these trucks, they don't heat up like the older ones.

I have EGT, Fuel pressure, Oil Temp and Coolant temp in my truck, all over the rear view mirror.


this is a good set of gauges but if you are working the truck i would put a trans. temp gauge and loose prolbably the coolent temp because your dash gauge is linked to coolent temp. i cooked a transmission working it. so i feel the trans temp is important. but in the same breath the more you monitor the safer you are.

Thats one thing I have actually wondered about, my aftermarket coolant gauge that reads from the side of the block rarely if ever reads the same as the dash gauge. My dash gauge will read "normal" at about 130° on the aftermarket. The aftermarket will then climb up to about 190° where it will stay and the stock gauge won't move. I have seen as high as 230° coolant and never a flinch from the stock gauge. Then again I have also seen 180° (aftermarket) and overheat on the dash gauge. Just figure its a difference of where its measured but always made me curious. I know 05+ trucks have a factory trans gauge (I think the 03-04 does too) but I certainly can't comment on its accuracy.

I have EGT, Fuel pressure, Oil Temp and Coolant temp in my truck, all over the rear view mirror.

Like I said, that's a good set of guages

Thats one thing I have actually wondered about, my aftermarket coolant gauge that reads from the side of the block rarely if ever reads the same as the dash gauge. My dash gauge will read "normal" at about 130° on the aftermarket. The aftermarket will then climb up to about 190° where it will stay and the stock gauge won't move. I have seen as high as 230° coolant and never a flinch from the stock gauge. Then again I have also seen 180° (aftermarket) and overheat on the dash gauge. Just figure its a difference of where its measured but always made me curious. I know 05+ trucks have a factory trans gauge (I think the 03-04 does too) but I certainly can't comment on its accuracy.Mine does this too, but that's what can be expected of factory guages...

As others have said fuel pressure is quite important on a 6.0 stock or not. I have one and with a performance tune from SCT I can drop my pressure below 50psi, with xtreme race I could drop it below 40psi if I tried and anything over 1/2 throttle would start pulling the pressure down. Stock I can pull it down to about 52psi or so but only at WOT. Anything below 48psi is considered to cause damage to the injectors, mine will idle at around 55psi. Also fuel pressure came in handy a few weeks back when the truck decided to gel up for the first time, would only build 25psi of pressure and then drop to 0 when in Drive. Engine wouldn't start to run rough till after driving over a mile with 0psi of pressure. I personally have found plenty of use for mine :shrug:

I can't tell but I think you have a 03-04 truck, in the 05 trucks we have factory boost gauges so no real need for one of them till your breaking over 40psi. Trans temp will just sit there and not move at all in these trucks, they don't heat up like the older ones.

I have EGT, Fuel pressure, Oil Temp and Coolant temp in my truck, all over the rear view mirror.




Thats one thing I have actually wondered about, my aftermarket coolant gauge that reads from the side of the block rarely if ever reads the same as the dash gauge. My dash gauge will read "normal" at about 130° on the aftermarket. The aftermarket will then climb up to about 190° where it will stay and the stock gauge won't move. I have seen as high as 230° coolant and never a flinch from the stock gauge. Then again I have also seen 180° (aftermarket) and overheat on the dash gauge. Just figure its a difference of where its measured but always made me curious. I know 05+ trucks have a factory trans gauge (I think the 03-04 does too) but I certainly can't comment on its accuracy.

yes the 04 has the trans gauge too but by the time mine hit red line the oils were cooked and the trans was done.

Trans temp will just sit there and not move at all in these trucks, they don't heat up like the older ones.

yes the 04 has the trans gauge too but by the time mine hit red line the oils were cooked and the trans was done.
The stock tranny gauge isn't a gauge at all. It's an idiot light with a needle.

At X* of temp it moves to the "normal" range. At Y* of temp, it moves to the "OMG your tranny is toast" range. I don't remember the #s exactly, but your trans temp can swing something like 100* without the "gauge" moving a bit.

The fact that most people think they have an actual tranny gauge in the dash already is why this gauge gets written off by so many.

The stock tranny gauge isn't a gauge at all. It's an idiot light with a needle.

At X* of temp it moves to the "normal" range. At Y* of temp, it moves to the "OMG your tranny is toast" range. I don't remember the #s exactly, but your trans temp can swing something like 100* without the "gauge" moving a bit.

The fact that most people think they have an actual tranny gauge in the dash already is why this gauge gets written off by so many.

Thats pretty much what I figured, didn't think it was any different than any of the other factory gauges. Boost gauge works but I know my coolant temp is just like what you described.