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'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 10-18-2019, 07:04 PM Thread Starter
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Need Help

I am located in Denison Texas about 8 miles from the OK/TX border. I am having issues with starting the truck and keeping it running. If I crank and hold it for a while it like sputter and crank over for about a minute or so, put out some white-gray smoke, and then die out. I don't have a programmer or gauges other than the factory. i have replaced the batteries and battery connections about a week ago. New fuel filter about two weeks ago. i also replaced the icp sensor about a month ago. i have tools with me but cant afford a scanner. i have a test light and volt meter if that helps. The weather is about 50 degrees at night when i'm attempting to start the truck after getting off from work.
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post #2 of 10 (permalink) Old 10-18-2019, 09:32 PM
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Try plugging the truck in for a few hours. If that helps, you may have worn poppets. They make cold starts hard to impossible. I will insert a link later that explains why. How many miles on your injectors?


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2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #3 of 10 (permalink) Old 10-19-2019, 01:13 AM Thread Starter
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I would imagine the injectors are original so 325K miles


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post #4 of 10 (permalink) Old 10-19-2019, 09:45 AM
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That's a lot of miles on a set of injectors. If it runs ok warm, do the spacers on them. Read the link to see why this is your problem and then get the kit I mention below.

PoppetValve.pdf

Go to eBay. Search for "94-03 7.3L POWERSTROKE injector tune up shim KIT w/ special Tools to install" by a guy named truckrental. This kit will raise the armature plate off the poppet valve which is your problem. Watch the video and read the whole item description in the ebay ad.

Edit - you can do the shimming with the injectors in the truck, BUT with that many miles you probably need new injector o-rings as well.

2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force Stage 1 injectors

IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE

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post #5 of 10 (permalink) Old 10-20-2019, 07:34 AM Thread Starter
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Okay I will look online and get the kit ordered. It is just recently getting cold and so I guess the problem is more pronounced. Thank you for quick responses and explanations.


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post #6 of 10 (permalink) Old 10-20-2019, 09:44 AM
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Another thing to check on these trucks is fuel delivery. The Hutch mod and a fuel pressure gauge are invaluable additions to these trucks as they age, I wouldn't be without them.


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Brian, Tucson, Arizona
02 F350 4x4 CREW 7.3 170K, BFG Rugged Terrain 285s, AIS, Isspro pyro, boost & tranny temp pillar pod, Dipricol coolant temp, ELC, Isspro EV-2 Fuel Pressure & HPOP, Dieselsite boots, coolant & tranny filters & 203* Stat, 6.0 Tranny Cooler, ITP pre pump tank mod, Bellowed Up Pipes, Riffraff Frx, netbook mount with AE, GPR LED, Stancor, Red Head steering gear, Battery Tender & 2 Marincos.
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post #7 of 10 (permalink) Old 10-22-2019, 01:35 AM Thread Starter
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Okay updates. So I kept reading around the forum while waiting for the shims kit and found other things to do. I checked the GP relay and found it no power when on to the other big terminal. I replaced it and tried to start it, which it started but died shortly after. I read some more and checked the HPOP reservoir and found it almost empty. I filled it and tried to start it for the same result. I checked the HPOP again and half the oil was gone... I then decided to check the dipstick to no find no oil on the dipstick. I need help and a scanner recommendation that will get me going and keep me going. Thanks again for everyone’s time and input


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post #8 of 10 (permalink) Old 10-22-2019, 08:45 PM
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So, did you add oil? I didn’t mention glow plugs for two reasons. First, a 7.3 will start in 50 degree weather without a problem. Second, it wouldn’t explain it dying after starting. Low oil would though.


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IF MY BODY IS EVER FOUND ON A JOGGING TRAIL JUST KNOW THAT I WAS MURDERED SOMEWHERE ELSE AND DUMPED THERE
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post #9 of 10 (permalink) Old 10-22-2019, 09:52 PM
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I'm with RT.
You need to find out where all the oil went.
Check the engine valley and the hoses between the HPOP and heads.
A 7.3L should go 5000 miles without needing to add oil.

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post #10 of 10 (permalink) Old 10-23-2019, 12:53 AM
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Start by filling it up with oil, and then see if it runs alright with full oil. Then look at the top of the engine while it is running to see if you can see the oil leaking out somewhere, and check the valley to see if there is oil in there.

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.

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