who has the most miles on the original injectors? - 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 10 (permalink) Old 03-04-2019, 02:35 PM Thread Starter
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who has the most miles on the original injectors?

Along the same lines as the who has the most miles on their 7.3, wondering who has the most miles on the stock, original injectors.

The injectors in my 7.3 work fine, buzz test OK, @ almost 280k miles.
I change the oil & filter every 5K miles.
The 3.55 gear keeps the RPMs low, I hope that helps too.
Is it better to replace the injectors as a PM, after some ??? number of miles on them, or wait until one or more fail?
If I had a truck, I would just drive it until failure, and do all the R&R myself.

But mine is a van, I dont see any way to change injectors & cups w/o either removing the body or removing the engine, things that this 69 year old cant manage any more!


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 #2 of 10 (permalink) Old 03-04-2019, 03:31 PM
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who has the most miles on the original injectors?

I had 245,000 on mine when I changed them out. They were still going strong but just did not like the cold starts in the Colorado mountains. There is no change interval on injectors just the o-rings I had a diesel tech tell me o-rings should be replaced between 150,000 - 180,000 miles. If it starts good and has a great idle I keep running them tell you start having a problem. I forgot in my experience just put a rebuilt or a new set of injectors in dont do one or two a time.

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2000 F250 7.3 4inc exhaust, Ts 6 pos chip witch custom tunes, Built 4R100 w billet triple disc converter, 6.0 trans cooler and deep tans pan, CCV mod, 4 gauge pod A piller,Boost,Trans temp,EGT,fuel pressure AFE intake,RIFFRAFF Frx fuel Rail dead head fix black spring,High Flow banjo bolts,High Flow CVD Fitting, Harpoon mod,Diesel site adrenaline HPOP,AIH Plug,Plenum Reinforcing Inserts. FULL FORCE DIESEL STAGE 1.5 single shot injectors, Garrett powermax GTP38R and blank pedestal, RIFFRAFF Intercooler CAC Boots with complete clamp kit , scanegauge 2

Last edited by 2000F250-7.3; 03-04-2019 at 03:33 PM.
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post #3 of 10 (permalink) Old 03-05-2019, 11:06 AM
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I have 225K on my 03 and have been thinking about changing mine to help with starting when it's below 0. The truck doesn't seem to start as easily as it did when it was younger. Not sure if I'm better with stock injectors or something a little hotter.
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post #4 of 10 (permalink) Old 03-05-2019, 11:15 AM
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I have 240K on my 01. The truck starts very easily. The idle is great. The injectors are original.

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 #5 of 10 (permalink) Old 03-05-2019, 05:11 PM
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I have over 340,000 miles on mine with no issues. I have the money put aside for a set but hope I can get over 400,000 miles on them. My Carpenter has well over 400,000 on his original injectors.

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 #6 of 10 (permalink) Old 03-06-2019, 09:50 AM
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344,000 on the originals and they still seem to work great.
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2002 F250 XLT, Super Cab, Short Bed 4X4
Build Date: 10/1/2001
7.3 PSD, 6 Speed Manual Transmission
AIS Severe Duty Intake
20.1 MPG Average
Pine Junction, Colorado
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post #7 of 10 (permalink) Old 03-09-2019, 11:13 AM
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415,000 havnt touched them. Honestly, havnt been that great at oil changes the last 150,000 since the body started rusting out, its lucky if it gets changed by 9000.
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post #8 of 10 (permalink) Old 04-13-2019, 09:20 PM
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404K miles for my early-99. Tiny bit of rough idle, and not the power it used to have. Not too consistent with the oil changes either, but have been running Stanadyne Performance Formula pretty regularly since 50K miles.

Early '99 7.3 L, 4WD, nearly stock, minor differential alterations
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post #9 of 10 (permalink) Old 04-15-2019, 11:23 AM
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My addiction to torque was too much. I had to changed mine out when I rebuilt at about 176 000 miles. They were too teeny weeny for me. Ahhhhh, much better now.

2002 F350 Super Duty, Crew Cab,Long box,4x4, 7.3 PSD, Complete rebuild .010 over by myself except balancing, 2000hp billet connecting rods, ARP main and head studs, ceramic coated pistons, Smith Bros Chrome Molly push rods, Comp Cams springs, shims and seals. Competion complete valve set and head grinding and vacuum tested, Adrenaline HPOP, DP Tuner Infinity DX programmer and full load of tunes modified for my new Stage 3 250 shot injectors, ceramic coated exhaust manifolds and up pipes and collector, BD Diesel triple clutch furnace brazed billet torque converter and BD pro engine brake and compressor set up, MBRP 4" stainless turbo back, Driven Diesel regulated fuel return system, AFE pro stage 2 cool air intake, riffraff billet Whicked Wheel 2 compressor wheel in a GTP38R turbo, riffraff blue cooler boot kit and coil clamps, International Double Ceramic Coated Bellowed Up Pipes
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post #10 of 10 (permalink) Old 04-25-2019, 08:18 PM
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456,000 in my 99.
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