Staying ahead of injector problems - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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post #1 of 13 (permalink) Old 10-19-2019, 11:54 AM Thread Starter
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I’ve been following several posts, but didn’t want to hijack someone else’s thread. Also a little lead in - my 7.3 currently has 188,400 miles and no hard start or low power issues that I notice, yet.
I am running 5W40, starts in cold weather have been great.

I have bought an AE but have not taken it out or hooked it up yet, but plan to do a buzz test in the near future and will try to get familiar with this diagnostic tool.

My question is, before I start experiencing problems (I know I’m on borrowed time (188,400) should I plan on checking and then shimming injectors if needed?

And if I’m going to go to that trouble (valve covers off) should I just pull the injectors to replace o-rings and nozzle crush washers?

I have other things on my wish list too that I may tackle at the same time- not being a daily driver will make it a lot simpler.

I guess the core issue to my question is should I do these items as a preventative measure when I am able or should I expect quite a bit more service over the 188,400 miles before experiencing problems with low power when cold, hard start, or bad o-rings letting fluids cross over? I’ve noticed some owners are just now addressing these issues with 260k or 300k miles.

Thanks, Glenn

Post Edit: I expect to only put about 3,000 miles on the truck per year, if that, until I retire (few years down the road) and then more trips/vacationing.

2002 F350 7.3L / 4R100 - 4WD CC DRW 8 Box, AIH Delete, Gauges- Pyro, Trans Temp, Boost, Fuel Pressure, TS-6 tuner, Zoodad Mod, Mishimoto 31 row Trans cooler, Mobil 1 ATF, Trans return line ATF filter, Hutch/Harpoon Mod, Air Lift Load Lifter 5000 rear air springs, Rancho 9000 shocks, Timbrens on the front.

Last edited by Big Horn; 10-19-2019 at 12:01 PM.
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post #2 of 13 (permalink) Old 10-19-2019, 02:21 PM
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Glenn

I wouldn't worry about messing with injectors till you actually start hearing/feeling issues with them. But renewing injector o-rings when you pull valve covers for injector work (shims) isn't that bad an idea. Not completely necessary, IMO, but can't hurt. BTW, the o-ring sets come with the copper washer at the nozzle.

I don't remember when I put my modded injectors in, but it's been around 200k ago, and they're still doing well.

But if you like digging into your engine, then go for it. (As an alternative to "If it isn't broke, don't fix it" )

First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #3 of 13 (permalink) Old 10-19-2019, 04:19 PM Thread Starter
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Quote:
Originally Posted by klhansen View Post

But if you like digging into your engine, then go for it. (As an alternative to "If it isn't broke, don't fix it" [IMG class=inlineimg]/forums/images/TheDieselStop_2015/smilies/tango_face_wink.png[/IMG])

Thanks for the reply and I completely see your point. I guess work habit has influenced my life too much, as part of the Maintenance Team of our corporation we were forced to give up “Reactive Maintenance” many years ago and switch to “Maintenance Machine Reliability” through preventative and predictive maintenance— of course..... my truck isn’t costing me millions of dollars a day when it’s broke down- thank goodness 😀

2002 F350 7.3L / 4R100 - 4WD CC DRW 8 Box, AIH Delete, Gauges- Pyro, Trans Temp, Boost, Fuel Pressure, TS-6 tuner, Zoodad Mod, Mishimoto 31 row Trans cooler, Mobil 1 ATF, Trans return line ATF filter, Hutch/Harpoon Mod, Air Lift Load Lifter 5000 rear air springs, Rancho 9000 shocks, Timbrens on the front.
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post #4 of 13 (permalink) Old 10-20-2019, 05:46 PM
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471,000 miles on mine and I’ve never touched them. I add two cycle oil with every fill up to keep them lubed.
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post #5 of 13 (permalink) Old 10-20-2019, 11:20 PM
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471,000 miles on mine and I’ve never touched them. I add two cycle oil with every fill up to keep them lubed.
WOW!.


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2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


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2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Stancor GPR. Walker BTM. Noco Mod. Michelin Defender LTX 285/75/16.

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2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
NOS Black CPS. Rebuilt Fuel bowl w/gold spring, 6.0 Cooler, Walker BTM, Stancor GPR, Michelin LTX M&S2.
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post #6 of 13 (permalink) Old 10-21-2019, 07:04 PM
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Kinasz,
That is VERY encouraging, mine is at 280k miles, I add Opti-Lube Summer Blend every tank.
Im 70, hope it does not need any injectors while I can still drive it. Of course, here in Florida, any blue-hair bony-knuckle can still drive so Ive probably got 30 more years to wear out the injectors!
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2000 E350, I ordered it from the factory, new. Dual A/C, XLT Super Duty trim, 3.55 limited slip, trailer tow class IV package, dual alternators,
speed control/tilt wheel, HD4R100 installed @203k miles, B&M cast pan,
Dahl 100 fuel filter, deleted stock fuel bowl drain valve (leaker),
replaced turbo pedestal w/ non-EBPV, deleted AIH. Bilstein shocks. Jensen VX7021 Navigation receiver, Garmin 65W dash cam
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post #7 of 13 (permalink) Old 10-21-2019, 08:56 PM
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Of course, here in Florida, any blue-hair bony-knuckle can still drive...
LOL, you are just required to leave your blinker going.


Sorry, I couldn't resist!
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First truck -- 1929 Model A Ford pickup, restored from ground up. Wish I still had it!
'99.5 F250 PSD Supercab LB 4x4, ZF-6 w/SB Con OFE, 3.73LS, Boost & pyro gauges, Swamps S175/146 injectors, DP 80 HP Econo PCM (classic version
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post #8 of 13 (permalink) Old 10-22-2019, 09:55 AM
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My magic mix is 8 oz. of super tech tc-w3 and 8 oz of PS winterizer/ anti gel supplement. Although I cannot take credit. This recipe was handed down from my boss who put the last 300,000 miles on it lol.
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post #9 of 13 (permalink) Old 10-22-2019, 01:25 PM Thread Starter
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Originally Posted by Kinasz View Post
471,000 miles on mine and I’ve never touched them. I add two cycle oil with every fill up to keep them lubed.

That’s impressive mileage with no injector work. I’ve been adding 1 qt. of the 2 cycle oil to every tank, as recommended by many members here on TDS.

2002 F350 7.3L / 4R100 - 4WD CC DRW 8 Box, AIH Delete, Gauges- Pyro, Trans Temp, Boost, Fuel Pressure, TS-6 tuner, Zoodad Mod, Mishimoto 31 row Trans cooler, Mobil 1 ATF, Trans return line ATF filter, Hutch/Harpoon Mod, Air Lift Load Lifter 5000 rear air springs, Rancho 9000 shocks, Timbrens on the front.
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post #10 of 13 (permalink) Old 10-22-2019, 03:05 PM
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I don't think the injectors or your issue. I have over 340,000 miles on my original injectors with no issues yet.

2002 f250 7.3 4x4 256,000miles. Bone stock other than hutch mode and edge evo programer I use for gadges most of the time. I also have air bags on back for towing.
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post #11 of 13 (permalink) Old 10-23-2019, 01:02 AM
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I have around 250,000 miles on my original injectors, and so far, they are still working fine. I'm guessing that you could still drive for quite a while before needing to do anything to your injectors.

2001 F350 XLT 4X4 crew cab, dual rear wheels, long bed, black, 7.3l turbo diesel, automatic transmission, 4.10, shift on the fly, running boards, sliding rear window, 38 gal fuel tank, Odyssey extreme 65-PC1750T batteries, Michelin LTX-MS2 rear tires, Sumitomo Encounter front tires, Shell Rotella Ultra elc, 11,500 gvwr, 20,000 gcwr, 7500 gvw, completely stock, 114,000 miles when purchased, now has 250,000 miles, repairs so far: two starters, batteries, cps, brakes, tires, alternator, ball joints, locking hub, wheel hub, AC compressor, serpentine belt, power steering pump, driver's side window, ignition switch, o-ring, Spectra premium radiator, water pump, fan clutch, fan blades, thermostat, thermostat housing, tensioner. Stolen twice so far, but recovered both times with major damage.

2005 Nomad Rampage toyhauler made by Skyline. 11,500lb gvwr.
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post #12 of 13 (permalink) Old 10-23-2019, 08:51 PM
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I have 339000 on mine. valve cover's never off. did the regulated fuel return mod at about 60k. used to run Power service white bottle (16oz per tank). stopped that about 100k miles ago. still put some in periodically. I also put a biologic treatment in about 1/year.

I wouldn't fix what aint broke

99 f250 2wd 7.3. Glock security. 338K miles
Regulated fuel bypass.
coolant filter
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post #13 of 13 (permalink) Old 10-24-2019, 01:31 AM
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The new low sulfur fuel needing extra lube for the injectors has been discussed in the past. If you do a search you can find which products actually reduce wear. At the time I did some math and figured that I would spend enough for a set of injectors buying the good lube. So I decided not to start using anything. I might revisit the information again. Before you add any additive I would do a complete search on any tests done. Some increased wear.
DENNY
EDIT:

http://www.dieselplace.com/forum/76-...y-results.html
Here is a study

Early 1999 F350 AUTO 4x4 CC LB DRW 4.10 6.0 trans cooler, Front hitch, 2,000 hubs/ brakes, Bilstein shocks/steering stabilizer, Diesel site coolant filter 203 thermostat, EBV delete, new O-rings, new Oil cooler, RIFF RAFF FRX, Glow plug led, Pillar gauges, Lighted cupholder, Painless wiring fuze block, Harpoon/hutch mods, Removed axle blocks. Air bags, 5 wheel hitch, In bed 7 pin plug. Spare tire key delete. KLHANSEN on speed dial. 75,000 as of May 2019

Last edited by DENNY; 10-24-2019 at 01:35 AM.
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