Ford 6.0 Blue spring upgrade and fuel pressure test

We show how to test your fuel pressure on the 6.0 powerstroke diesel. Once fuel pressure is checked we walk you step by step in the replacement of the fuel pressure regulator with the upgraded ford blue spring kit. Maintaining proper fuel pressure is extremely important to prolonging the life of your injectors.
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[@micahperrotta6501]

Gotta admit this dude is a legend. He is great at explaining and his simple trick help in huge ways. Appreciate the video brother!

[@tylerpetit33]

Hands down, one of the best mechanics on KZbin. The step by step videos are incredible. Thank you.

[@InTheShop]

Thanks Tyler!

[@jasonh9957]

I really like your video style, the tool and parts layout at beginning are great. Step by step with close ups are a big help. Thanks and subscribed!

[@InTheShop]

Awesome, thank you!

[@stevejames7745]

Thanks for the video! I was able to do the upgrade without taking my air filter housing and intercooler pipe apart. I just used a pry bar on the radiator hose and a swivel on my ratchet. It’s a little tight but definitely saved me some time in the end.

[@Kevinreilly96]

Love the channel Nathan. I've depended on diesel tech Rons videos for years and came across your channel. Very good advice and very well done. Thank you

[@InTheShop]

Thank you!

[@adventureproyo30]

Best 6.0 videos around to fix your truck

[@5400bowen]

Great stuff as usual. My 2006 is leaking fuel at the pressure regulator cover. I’ll be doing this job in the next couple days. I was glad I found your vid. Thanx again.

[@wakenup23v]

Thanks. For checking the fuel pressure, I bought the ford fitting from amazon and then purchased 5 foot 1/4" air host extension and a pressure gage from Harbor Freight and worked great. My fuel pump would apparently stop working sometimes and read zero PSI. I banged on the pump and it came to life again. Looks like I need a new pump.

[@buddha65281]

I'm sitting around 53 psi KOER (idle), will check WOT today. Thanks!

[@FORD4LIFE73]

Great video you definitely used diesel tech ron tricks but very detail video great video for people who never done that and I had to replace my fuel sending unit the pick up tube was restricted with gunk truck has 210000 miles so more expensive to replace the whole unit but don't have worry about it giving me a false reading

[@lnc23]

Same thing I was thinking could have just credit.

[@danmckeon6221]

Thank you! My 07 6.0 broke an injector tip in #6, every one I talked to said it was most likely related to low fuel pressure, this should help with that, also looking at a regulated return with Airdog lift, & Beans sump

[@josonsop]

Good stuff Nathan...again another helpful and well put together video!

[@InTheShop]

Thank you John! I really appreciate the long words

[@dunstan06]

You are Aces! Great Instructional Video.

[@jttice657]

Nice Video Really appreciate the detail you add.

[@InTheShop]

No problem! Thanks for watching!

[@trife78]

Great video. Got a slight leak on mine currently. Any thoughts on the XDP or Sinister blue spring kit with adjustable regulator. I was thinking it might be nice to get a little more pressure then stock.

[@kcdaniels58]

You have become my go to guy for my 2004 bored over .20 6.0 ! Thanks for such clear and well documented videos !

[@dougblack8933]

great video. thanks. Now i need one on removing a stripped HFCM drain plug

[@InTheShop]

Very carefully use a punch and walk it out. Might have to remove the front driveshaft or pull the HFCM right out of the truck and do it on the bench.

[@TommyHolidayTHEONE]

Thanks for these videos, great detail. Im currently replacing ICP sensor and pigtail in my early 6.0. Any videos on that?

[@InTheShop]

Nothing on those yet.

[@dylanrobbins9069]

I know I'm a few years late but what is the fitting that connects the fuel pressure regulator to the fuel return line? I just put a blue spring in but messed up that fitting and cannot find out what it is. Thanks!

[@dlowe404]

Great tutorials on your vids. Thanks.

[@abibodlogistics]

Hello there,I just want to check with you if it is popssible to change from the permanent brake and accelerator pedals to the adjustable type and also if it is prewired in the truck.Thanks and I look forward to hearing from you asap.

[@flako0216salinas]

Great video but don’t you have to test pressure under load? To verify diesel pump is any good or to check if the injectors are leaking?

[@InTheShop]

Irving Salinas thank you! And yes absolutely checking under a load is the best way. I go over that around the 16:00 mark of the video. Knowing the pressure under a load is the best way to verify the fuel pump is healthy.

[@jwwasher]

Good job. Nice camera work too.

[@InTheShop]

Thank you!

[@jameswasher3938]

No, THANK YOU for these videos. They are so very helpful.

[@jeffstieren4474]

Excellent Video and I thank you

[@keworkianjr23]

Recently rebuilt my turbo and new ficm , I haven’t checked my fuel pressure but I automatically bought an oem blue spring kit . So I went to the regulator to do the job and the t27 bolts snapped. It’s still intact and tight not leaking fuel while running , do yu think I should try to easy out the bolts or end up buying a new oil/fuel filter housing ? Thanks for any input , love yur videos , I go back and fourth between yurs and diesel tech Ron

[@magnacartasamadams8189]

Thank you for the instructions on testing the fuel pressure there isn't many videos on that out

[@InTheShop]

Glad I could help! Let me know if there are any other videos you want to see.

[@magnacartasamadams8189]

@@InTheShop Yeah eventually I need to do My steering Box if you have any information on that or pointers to make it easier that would be great Also It's a 4x4

[@InTheShop]

@@magnacartasamadams8189 They aren't too bad to do. If i get one in soon I will make a video.

[@Bearairboatrides]

@@InTheShop Please do. I'm looking at this soon as well.

[@davinreeves]

Great job! Keep it up!

[@andrewgraham5151]

How much would the fuel pressure deviate if say the engine were running and under load? Would that be a better way to check?

[@InTheShop]

Definitely it’s best to check under a load which is why I mentioned it in the video. It shouldn’t deviate much if everything is functioning properly. 5lbs~

[@monski520]

Thanks for your help

[@billjensen6216]

Thanks for the info

[@viviangoodwin2861]

Installed the blue spring static fuel pressure is around 41psi. Bad fuel pump???

[@InTheShop]

Did you use a Ford blue spring kit?

[@Lucariorunner]

how bug of a pry bar do you need? i have some but are smaller, just needing to get of set of dedicated 6.0 tools, i come from a metric only bck ground lol

[@doctest1]

Nate, should I do the blue spring upgrade on my Punisher 6.0? Also, which SCT tuner will you be installing?

[@InTheShop]

Nunya Business I think we did the blue spring upgrade to your truck already. I will look at our records. I will call you in the AM to go over the options on the SCT

[@doctest1]

10-4!

[@johnmcgowanireland695]

Excellent !

[@oscaresquivel4740]

I had a shop install a blue spring kit a year ago. Just replace all 8 injector . My fuel pressure at idle is 60 half throttle 55 wot it went down to 20 psi . It’s got brand new fuel filters . What should I look for ? My pump sound strong .

[@InTheShop]

If the filters are good and the blue spring kit was OEM I would start by checking for air being pulled into the system or a restriction before the pump. If there are no cracked lines and you have no restrictions the pump is likely weak.

[@MarioOrtiz-uv4bg]

At the fuel filter at test port i have no fuel pressure but i put an adapter fuel pressure test kit on housing I'm a 65 to 70 psi..crank no start

[@josehechavarria2003]

Thanks for your video

[@adamrossi4123]

Hello, thank you for the video. Do you know where the two fuel filters are on this vehicle? I replaced the pump and the large filter, but I can't find where the smaller filter is. Thanks.

[@adamrossi4123]

woops wrong model. our small filter is not easily accessible from the top of the engine.

[@InTheShop]

Which model are you working with?

[@katiegreene3960]

What if psi at idle is 79 ? Runs good

[@captbad9313]

Hey there, so my 6.0 just died on me coming over a mountain pass almost a month ago, truck just died. checked my codes right away and the Icp sensor with low voltage code came up. almost froze to death waiting for a ride, I think it got down to -10 that night. Any way, bought the new sensor but upon installing it, no low voltage code after, but no HPOP pressure and the Ipr was at 84.7 percent. Changed the oil, changed the fuel filters. I then unplugged the sensor, and the HPOP oil pressure went to 1000 psi and the Ipr was at 49.5 percent, still no start. checked the fuel pressure, key on and it went to 50 psi. Went thru all the fuses. the injectors are rattling key to start, checked my ficm plugs today, am I missing something? Replaced my FICM 2 years ago plus The IPR, truck was running sweetly, no indication of anything it just stopped running, I thought I heard it miss just before the failure. Any thoughts. I just need to know what I need to order and replace, I'm no slouch with a wrench, now that its warmer I can work on it. This one has me stumped, hope ur well and happy. Also hope to hear from u soon. Thanks. J.

[@kcdaniels58]

Did you ever get this sorted out ?

[@captbad9313]

@@kcdaniels58 yes it was the long up tube on the passenger side. O ring seals failed on it. Which is why no oil pressure to injectors. Thanks for checking in.

[@mf8913]

If you installed the blue spring kit and still have low pressure would you change the fuel pump next? Or check the tank?

[@InTheShop]

What brand of blue spring kit did you install? Was it a genuine Ford part?

[@mf8913]

@@InTheShop yup bought from Ford

[@mf8913]

I've got 41 psi static fuel pressure and yup I bought it from Ford

[@mf8913]

Put a Ford fuel pump in and still have the same pressure

[@mf8913]

So I took apart the fuel regulator and the black seat where the Plunger goes was worn after 3000 kms I put the old black plastic seat in with the new blue spring and 65 psi now. The new black seat actually has sharp pieces of plastic coming out of it

[@kevinlamarr1424]

That’s the other thing I want to do is that upgrade kit since I’m taking the injectors out anyway

[@josephcirelli9642]

Great informative video!

[@darrenmastervick597]

Hey there, looking to order this kit but my local parts guy is not sure the spring is included in this kit but everything I read says it does come with kit.

[@InTheShop]

From ford it’s part of the kit

[@matyLSX]

Man it's great to see you doing well kid. I went and purchased a few Bully Dog filters when you first got them. Looks like your keeping busy. Looking for help?

[@InTheShop]

Thanks man! We are wicked busy. Right now we are fully staffed but thank you for asking.

[@danclow4978]

what size is that fitting for checking the fuel pressure, I dont want to buy anything that's the wrong size

[@InTheShop]

Hey Dan, there is a link in the description of the video to the fitting you need.

[@charleshampton9090]

Anything go on the plunger ? No gasket 2005 6.0

[@jl2831]

Hey i just bought an 05 with a leak there. What is the part number for the kit?

[@InTheShop]

I have a link in the description to that part.

[@mikeodell5915]

Great video.

[@williamboyce6383]

Probably a stupid question but what are you standing on to access the engine cavity? I'm a disabled veteran and ladders are going to kill me thank you in advance

[@InTheShop]

Hi William! I use these amzn.to/3ImYFMR

[@williamboyce6383]

@@InTheShop Outstanding ....Thank-you!!!

[@johnandersen5276]

So you said minimum you like to see 60 but 70s preferable well ever since I've done that kit and the banjo bolts I'm seeing 95 to a 100. I drilled and tapped aluminum cap for the fuel filter and ran a steel braided line to a mechanical gauge under the hood and at idle it's seeing 95 PSI to 100 PSI. I keep reading threads that are saying I'm going to blow oil rings on the injectors but then I also read ones that say at least 70 PSI is preferable so since I'm 25 psi over the preferable is that really going to blow out the O-ring? With the explination that you just said on the plunger with the injector it sounds like higher PSI would be a good thing.

[@InTheShop]

john andersen 95-100 is way too high. Running pressures like that can definitely cause the o-rings to blow out. Did you use a ford kit or an aftermarket kit?

[@johnandersen5276]

the ford kit.

[@InTheShop]

@@johnandersen5276 Either the gauge is wrong or something is wrong with the spring.

[@johnandersen5276]

well, I did forgot to mention I checked with another guage already to make sure it wasnt the guage. I also yesterday put on an adjustable regulator and backed off the adjustment all the way....and pressure remains that high. I'm really at a loss here

[@InTheShop]

@@johnandersen5276 did you check the pressure before changing the spring? If not it is possible that it was already that high. A restricted return line can cause high fuel pressure. I would have to personally see the truck to get any deeper into it. Hopefully this helps

[@rebeljtown2071]

What about over presure I installed a blue spring and a new fuel pump and getting 85psi

[@InTheShop]

Where did you get the blue spring from?

[@bajakenpo4238]

If I had that problem on my 2005 6.0 to 50 would that make my truck automatically shut off while I'm driving down the road. Scenario is low On Diesel fuel. Got off the freeway pulled into a gas station and filled up with diesel . No problems shut it off and no problem started Backup. Drove about 4 miles . And boom it just shut off by itself. I've change the feel filters check for water. Even bought brand new batteries. Still no start. Any ideas Oh I also put a brand new ficom. I think that's how you pronounce it very expensive

[@patgraeme775]

My guess would be ICP sensor.

[@patgraeme775]

stc fitting or standpipes and dummy plugs. Had the same issue in my 07 last week ended up being stc. Drove fine until boost came in died and no restart

[@bajakenpo4238]

Thank you I'll check it out

[@oscaromp91675]

I am getting on my f250 05 6.0 p0003 could it be the spring

[@kennethcarter5374]

What about cranking pressure is that something would should check before installing the kit to see if it changes after installation or will it roughly stay the same give or take?

[@InTheShop]

Fuel pressure wont really change while cranking. The most important measurements are at idle and under a load.

[@kennethcarter5374]

In The Shop ahh okah I wasn’t sure if it would cause a change after doing the install!

[@williamcallaghan5271]

I was going to ask the same thing.

[@kennethcarter5374]

William Callaghan figured something to ask

[@rust2985]

Any updates on the dt466 superduty?

[@InTheShop]

Mike Tunstall not yet. We should be working on it some more towards the end of this week. Hopefully get another update on it early next week for you guys.

[@chrisblankensopp9682]

Can you have too much fuel pressure I seen another video when he installed the blue spring he had 90 psi and he said that was to much is this true?

[@InTheShop]

Correct. This is common with non Ford blue spring kits. 90psi can push past the o-rings on the injectors.

[@chrisblankensopp9682]

Ok thanks I may have more questions later thanks for your fast response, I bought a 2005 f350 king ranch with 250k has a shutter when driving in over drive from everything I have researched sounds like a injector sticking maybe ,will be looking into it here in a few days when I get back home

[@TheLuigiTech]

Tried do this earlier Fuel Line bended when trying to take the nut off. What do I do to take it off?

[@InTheShop]

In the video around the 7:00 mark I show how to use a second wrench to hold the fitting still while turning the tube nut. Unfortunately you might have to replace that fuel line if its kinked.

[@splashfrank4945]

I did the same thing I’m looking for both nuts on the line

[@eljr6751]

I installed a new blue spring kit and my pressure is at 40 and it also makes a whining noise

[@InTheShop]

Where did you get the blue spring kit from and was it an OEM ford kit?

[@erniesabatini4469]

Hey, I installed the blue spring in my 05 about 6 months ago, i just installed a fuel pressure gauge and I'm getting 80/81 at idle, WOT gets down to 45. Is this ok

[@InTheShop]

What brand of blue spring did you get? Did you get an OEM ford?

[@erniesabatini4469]

@@InTheShop no got it from Amazon this is the description, 6.0 Blue Spring Kit Upgrade - Fuel Regulator Kit - Compatible with Ford Trucks - Blue Spring Kit 6.0 Powerstroke F250, F350, F450, F550 2003, 2004, 2005, 2006, 2007-Replaces 3C3Z-9T517-AG, 3C3Z9T517AG

[@InTheShop]

That is likely your problem.

[@splashfrank4945]

I need that middle fitting bolt is there any links?

[@InTheShop]

Which fitting? The one between the housing and the return line?

[@splashfrank4945]

@@InTheShop yes sir

[@InTheShop]

@@splashfrank4945 I just looked and couldn’t find a link. I’ve personally never had that fitting fail. You may have to go to the dealer and point it out on their diagram.

[@splashfrank4945]

@@InTheShop yeah figured I’d have to end up doing that,thanks for the help though brother

[@WCGwkf]

This is my fuel pressure in this video for 2006 6.0: kzbin.info/www/bejne/o5CpfIpuhsuFm7c Having a no start issue, already gone through all the dieseltechron procedures and I'm down to the pump, a leak, or bad injectors. Or some phantom problem. I'm sure some loss could be from the gauge not being perfectly sealed and having the gaskets on the regulator probably being leaky but where else would it be leaking? Is it possible that it's the fuel pump? Can you lose pressure from bad injectors on the pre cycle? I'm going to install the blue spring kit this weekend and I have a new pump coming but I wont be too surprised if mine is fine. I also have a professional cap style pressure gauge coming too so I know it isnt the issue and can get dynamic pressure. Pressure is no better than 5 psi until cranking I get 15 psi. After I stop cranking it shoots to 60 or so from suction? Hope someone has seen this problem before... Also, I need to do the bubble test I will do it this weekend as well after I put the spring kit on.

[@InTheShop]

In my experience the regulator won’t cause the pressure to be that low. I would still install the blue spring anyway as that’s a great upgrade. The pump could definitely be weak. Other things that I have seen cause that are a crack in a line allowing air to be sucked in. What kind of chassis is the truck? Is it a pickup or a cab and chassis with an after axle tank? The after axle tanks are known to delaminate inside and cause the fuel system to plug up. As far as injectors go, if you had an injector bad enough to cause pressure that low your oil would be completely full of fuel or you would have a cylinder hydro-lock. Hopefully there is enough info there to give you a direction to go.

[@WCGwkf]

@@InTheShop just got it so I'm new to details of it, crew cab 4 full doors, long bed i believe but has a utility body, 4x4 and I do believe the tank is behind the axle, I'll have to double check that. Is there a tank pressure test I can do? When I pulled the pump the feed line just kept flowing and didnt stop. If there was air getting into the tank wouldn't it not be possible for it to siphon? Doing the spring kit tomorrow. Thanks for your help!

[@WCGwkf]

@@InTheShop I put the blue spring kit in and did the bubble test. Put the old pump back on and cycled 5 times and it was still pushing a lot of air out the feed line but once settled i never saw any bubbles coming out running the remote starter line crank. New pump should come in tomorrow so I'll throw that on and hope that does it. If not I guess it would be time to tear down the top and replace the dummy plugs, check ipr valve and replace those parts, and check injectors. Bubble test kzbin.info/www/bejne/m3K9mmelh89jhMU

[@fbi6540]

Mine is at 90, what’s the issue lol

[@InTheShop]

It could be a restriction/kink in the return line or a bad or improperly installed regulator spring. The return lines get kinked often at the regulator when people attempt to take them off and don't double wrench the fitting.

[@fbi6540]

In The Shop aha that seems to be my issue, mines kinked. Got a link for that return line by any chance, hard to replace?

[@InTheShop]

@@fbi6540 what year is your truck?

[@fbi6540]

In The Shop 04.5

[@InTheShop]

@@fbi6540 04.5 can be a tricky year. These are the links to either one it can be. In the link there will be part numbers. I would call a ford dealer, give them your VIN and ask them the part number. amzn.to/2XcaDEJ 2005+ amzn.to/2yJwji6 2003-2004 Changing the line is a bit of a pain but not a horrible job.

[@cgindustrial1859]

I'm betting you are near the Canadian border...because you say "truck". So many Americans will be working on a 3/4 or 1 ton truck and refer to it as a "car". Drives me fu#$en insane.

[@InTheShop]

I'm from Massachusetts. We are a bunch of strange people haha

[@brianwalters8302]

Another great video. Thx

[@nathanfw.5611]

Great video. thanks for posting.

[@InTheShop]

Thank you!