[danlane6.0]

I've had a sticky injector for past 3 months, not too bad, not very often, usually toward end of the day after being driven around (I work in it) and only lasts no more than a minute. I decided to feed it some Power Service Diesel Kleen. I do realize I should be using fuel additives quite often, but I haven't so that's why I went and bought it.

I poured entire 16oz bottle into 21 gallons of fuel, which the back of the bottle specified to double the dose if there is an injector issue (regular dose was 8oz per 20 gallons). As a note, I got the fuel at the same RaceTrac station that I always do and is always very busy with diesel trucks. This was yesterday morning, and I kid you not it ran smoother and cleaner than it ever has. I was impressed. BUT THEN, last night on the way home, it started sticking again, and then got REAL bad. My truck barely moved and nearly cut off. After I cursed extensively for 5 min I bit the bullet and muscled it the remaining 3 miles home.

This morning it cranked fine and ran perfect. I am mystified. Could this have been bad fuel? Or possibly diesel kleen kleening the crud in the injector?

Also I bought 8oz of rev-x I'm fixing to put in when I change my oil tomorrow, could this help ?

 

[danlane6.0]

Also I do understand the injector(s) will need to be replaced, I'm just referring to the extremity of the issue last night and the how normal it ran today.

 

[jamesrxx951]

I have a few customers that use Hot shot Hot Shot's Secret | The Original Stiction Eliminator . This is added in the oil as the oil side is where the stiction is. Brought back a few bad injectors on their rigs. Maybe worth a try.

 

[03powerstrokeuser]

Welcome to the forum!!! 1st get the codes read as this could be caused by other things! Rev-x is a really good product! It is also an expensive one as well. Depending on the severity, you may need 2 apps. and oil changes. Just my personal experience w/ it. What is your filter maint. like? Oem filters and cap/oil? Filters on the fuel side oem? Diesel- kleen is also an amazing product as well. Keep using it. How many miles on the truck btw?

 

[danlane6.0]

Funny you should ask! Truck has 254,000, motor should have around 110,000. I'm not 100% sure because I'm not the original owner, but to my knowledge its around that. I change the oil every 3000-4000 miles because its driven back n forth everyday with a landscape trailer including heavy traffic. I put in both fuel filters last time I changed the oil about 3000 mi ago, which I'm changing again tomorrow including adding my 8oz of revx. I won't put fuel filters in again for maybe another 10,000 at most, maybe less. I use ONLY motorcraft filters and shell rotella 15-40 oil. I know I will need to replace the injectors at some point, but I'm just worried about when winter comes it will get worse. I will definitely try that hot shots stuff.

 

[TKOPerformance]

Diesel Kleen is good stuff. I'm now running 1/2 bottle in every tank of fuel (33 gallons give or take). What you have to realize is that it will clean out the fuel system. So if it dislodges anything big enough to get into and clog up an injector orifice you may get an injector cutting out, then working again once the crud dissolves or gets blown through. The orifices in a 6.0 injector are almost too small to see with the naked eye. If you look at an injector that's been in service you won't be able to see them. You can see them on new injectors because the tips are super clean. It doesn't take much to plug one up.

Diesel Kleen in only going to help you on the fuel side though. It isn't going to help with stiction. Stiction is an oil related problem. That's where synthetic oil and additives are going to help. Some injector issues are related to clogged injector orifices or stuck pintles on the fuel side, but if the issue is with the spool valve for example you need to address the oil side.

After nor having run fuel additives it may take a few tanks to in essence "drive it clean". I'd just keep on adding the Diesel Kleen and put some Archoil, HSS, or RevX in the oil at the next change.

 

[danlane6.0]

Thank you all for the input. I changed my oil and filter earlier and put in 8oz of rev-x along with it. My only question is do you guys run this stuff every oil change, every other oil change, or just once every blue moon? And I will definitely be adding diesel kleen in every tank, just maybe not the max dose like I did.

I actually stopped by Economy Diesel in Dallas, Ga today and talked with them. They hooked it up to a computer and it read cylinder 7 had an issue, probably related to fuel pressure since it is last in line to get fuel , so they're going to put in a better fuel pressure spring tomorrow as well as new glow plugs because 3 of them came up malfunction as well. All that for maybe $300, not too bad. These guys are very knowledgeable and honest, and no pressure. They really suggested trying this first before paying big $$$ for new injectors so I know they're not conning me. I watched them pull the codes. Anyone heard of or had any experience with these guys would love to hear about it. Their cost for bulletproofing it was nearly $2500 LESS than other quotes I've gotten. And includes all head machine work , black onyx head gaskets, egr delete, ARP studs, oil cooler, coomlant system flush, coolant filtration system, as well as 5" turbo back straight exhaust.....for right at $4000. Other shops Wanted over $6000 to do the same thing.

 

[dcovaleski]

If they were an honest and experienced shop, They would not be installing "black onyx" head gaskets. Also, the computer will not show a "fuel" issue in any single injector. The computer may pick up a contribution issue with a specific cylinder, but it cannot determine what it is, although, an injector issue is most common. I would speak for all of us when I would say to definitely upgrade the fuel press regulator spring because they are known to fatigue. However, correcting a fuel issue now will not bring back a bad injector, but it will save future failures.


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[danlane6.0]

The computer did not pick up a fuel issue, it only stated cylinder 7 fatigue of some sort, I figured it was related to a fuel pressure issue since its last in line and my injector sticks from time to time. Atleast it seems kind of coincidental. And I may have heard wrong, it may have been black diamond gaskets, unless those are the same. I am in no way a master mechanic, if you could tell me the absolute most indestructible head gaskets I will buy them myself to have them installed. I'm completely open to any input on the absolute best hardcore parts for this motor. Most work I do on my own to my truck (oil/filters, fuel filters, serpentine belt, pulleys, alternator, brakes, etc.), I just wouldn't get that deep in it without every tool needed and no good work space to do it. Thanks again for the input.

 

[dieselmac]

The Ford head gaskets have proven time and time again to be the best.

Whatever you do, stay away from Black Onyx gaskets or you'll more than likely be a repeat member to the HG club.

 

[TKOPerformance]

OEM Ford gaskets are the only way to go. The black onyx gaskets being used are the only time I've heard of someone having a blown HG when they had studs installed. Black onyx, huh, that's an oxymoron. Onyx is black. That should have been a tip off right there.

 

[dcovaleski]

OEM Ford gaskets are the only way to go. The black onyx gaskets being used are the only time I've heard of someone having a blown HG when they had studs installed. Black onyx, huh, that's an oxymoron. Onyx is black. That should have been a tip off right there.

Lol, good point! Back to the op, seems like they have everything down , just request the oem gaskets. The updated spring is a must no matter how far you're going to dig into the motor. Besides dirty oil, low fuel pressure is a good way to continuously knock out injectors.


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[danlane6.0]

I will keep this in mind when I have them do the work. Will be a little while to set aside $$$ for it. They're putting in the upgraded spring and all glow plugs and harness right now. Also it ran really smooth during the 30 mi drive over there after new oil and rev-x I put in yesterday. Atleast for now...

 

[danlane6.0]

Just got back with my rig and runs smooth as silk. Installed upgraded fuel pressure spring kit and 6.4 banjo bolts. But get this, found out my passenger side glow plug harness was UNPLUGGED. solves the code for the bad glow plugs. Whoever worked on the truck before I owned it is responsible for that. I guess these guys are pretty honest for not keeping that to themselves and getting another $200+ from me. Now just luck, a good prayer, and more injector cleaner may save that injector. Atleast for now.

 

[dcovaleski]

Nice, doesn't get better than that!!


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[TKOPerformance]

When you go to do the heads I would advise installing new GP harnesses. They are often damaged during that operation. Everything may be fine for a week, a month, etc. then you start getting GP codes. Those harnesses take a beating from the exhaust heat and get brittle as glass.

I would also advise removing the 6.4 banjos and installing stock banjos. The 6.4 banjos are designed to work in the 6.4, which has a different fuel system than the 6.0. The 6.0 banjos have a check valve in them to prevent reverse pressure waves which can damage fuel system components. The only way to safely remove the check valves is to run an RR fuel system, which is total overkill for a stock engine.