Early '99 7.3L general - Diesel Forum - TheDieselStop.com
1999-2007 General Questions General questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.

 
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post #1 of 11 (permalink) Old 12-16-2018, 12:59 AM Thread Starter
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Early '99 7.3L general

I'm looking at fixing an early 99 7.3 that has some issues. This is my first diesel, it's been down for over a year, the original issue being the injectors and turbo. Admittedly, I am a 20 year old girl who knows the very basics of the 7.3 diesel. I am set on getting this truck running and learning as much as possible so any advice on injectors/turbos would be greatly appreciated, as well as just general advice about 7.3s, what to look out for, and future mod ideas. I'm sorry if any questions may sound dumb, I'm just looking to do this right.
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post #2 of 11 (permalink) Old 12-16-2018, 05:45 AM
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Those are very good questions to ask.

Before spending alot of money on upgrades, can you describe a bit more about the trucks mileage and any mods and why you think the injectors and turbo are needing replacement?

Was this a shop disgnosis?

You are really lucky to have found this forum, the members here are glad to offer experience and suggestions every step of the way.


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2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
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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. 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 #3 of 11 (permalink) Old 12-16-2018, 11:01 AM
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Please give us some more details about what issues you are having, and what is happening.

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 240,000 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 #4 of 11 (permalink) Old 12-16-2018, 01:17 PM Thread Starter
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Over a year ago, tried to start the truck on a cold morning and it just white smoked all over the yard. The truck had been missing for awhile before hand. It is known the injectors were bad, so presumably the turbo is going as well and would need to be replaced to handle new injectors. The truck is close to 300,000, so it would be about time anyway I work for a dealership and this is the opinion/diagnosis of the in house mechanic. This was November of 2017, the truck has since sat in a closed garage, so I'm expecting to do a clean out of the fuel system as well. . I believe it's got an efi live tuner and i dont have a complete list of any mods made beyond stock replacements. Currently, it will NOT start
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post #5 of 11 (permalink) Old 12-16-2018, 07:37 PM
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Just because the injectors are bad it does not mean the turbo is. Throwing parts at an old truck is a good way to waist money. Replacing injectors is a 8-16 hour job for a low time wrench turner guy or gal. I would charge the batteries and try to start the truck and get it running some before you do injectors. If you can get it running and have big cloud of white smoke you may have a cracked injector cup. That is a bit more work but not that hard.

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1999 F350 AUTO 4x4 CC LB DRW 4.10
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post #6 of 11 (permalink) Old 12-16-2018, 09:06 PM Thread Starter
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Spoke to the person driving it before, turbo is for sure bad because it’s spewing oil. I know the injectors do need to be replaced, a mechanic has taken a look, but it is not known for sure how many went bad. Every time an attempt has been made to start the truck since, it just white smokes. I’m just looking for advice on what route I should go in terms of a replacement set

Early 1999 7.3 f250 Extended Cab 4x4
Roughly 295,000 miles
8" ProComp Suspension Lift, 2" blocks
35"s on 20x12.5s
Pyro, Boost, and Tranny Temp Gauges

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post #7 of 11 (permalink) Old 12-16-2018, 10:38 PM
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Depends on the tunes the the efilive tuner. I would go with Full Force Diesel. Give them a call tell them your setup and they can lead you in the right direction. If money allows I would go to a set of stage one injectors it will give a little more power put still work great on a stock turbo.


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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
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post #8 of 11 (permalink) Old 12-16-2018, 11:54 PM
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I would go with stock injectors (not rebuilds). You are talking about a higher millage truck and adding a lot of power is just asking for trouble. Remember It is not just the engine it is tranny/transfer case/every U-joint/axle that has to handle the load. Was the turbo or the turbo pedestal spewing oil?? Add some more info to your signature. Location, truck year/type/mods, it will help everyone give advice.
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post #9 of 11 (permalink) Old 12-17-2018, 11:23 AM
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I would pull the tuner off the truck and see if it starts. I have seen them go bad. Plug in the block heater over night and see if it starts. If the engine is warm it still should run with an injector or 2 that are not firing. I can't believe all them went out at the same time. Are you getting smoke from unburnt fuel or oil smoke from the turbo.

02 F350 Lariet CCLB 4wd Dually 7.3 6sp M. 122,000 miles, Manual hubs and transfer case.
Stock as of yet. So far have bought
4" MBRA turbo back with muffler
GTP 38R BB turbo and WWII wheel and high flow housing, Non EBV pedestal, Adrenaline HPOP.
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Boost,Pyro,Fuel,HPOP,LPOP pressure. Water,Oil and Trans Temp. Need tunes and injectors yet.
03 26' CM 4 Horse trailer and 25' GN flat bed.

06 F-350 Lariet CCSB SRW 4wd Auto 6.0 78,000
miles. Atlas 80 with Ed's lifetime, Blue spring, MBRP 4" turbo back with muffler, Bully Dog for monitoring. So far no problems.
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post #10 of 11 (permalink) Old 12-17-2018, 09:12 PM Thread Starter
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I’ll try that, ASAP. If I remember correctly, the tuner was acting up before the truck went down so it’s a possibility. Thanks!

Early 1999 7.3 f250 Extended Cab 4x4
Roughly 295,000 miles
8" ProComp Suspension Lift, 2" blocks
35"s on 20x12.5s
Pyro, Boost, and Tranny Temp Gauges

Based out of Lubbock, TX
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post #11 of 11 (permalink) Old 12-17-2018, 09:14 PM Thread Starter
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I’ll also update my signature with more info regarding me and the truck once I get off work! 👍🏼

Early 1999 7.3 f250 Extended Cab 4x4
Roughly 295,000 miles
8" ProComp Suspension Lift, 2" blocks
35"s on 20x12.5s
Pyro, Boost, and Tranny Temp Gauges

Based out of Lubbock, TX
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