2002 7.3 Injector Upgrade/Replacement - Diesel Forum - TheDieselStop.com
'99 & up Upgrades and Aftermarket - 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. 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 4 (permalink) Old 08-31-2019, 02:41 PM Thread Starter
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2002 7.3 Injector Upgrade/Replacement

Hello All,

Now that I have addressed my transmission issues, I am looking to address the injectors in my 2002 F250 7.3 with 257k. I want to get rid of the cold starts, so that I no longer have to use the block heater in the winter temperatures.


My current mods are K&N Cold Air Intake, Mishimoto 37 row Trans Cooler, and Billet Multi-Disk torque converter. I have been using a Superchips 1805 with stock injectors since 2007 time frame (already aware that this is not really a good tuner now, with so many better options out there). HPOP was replaced by Ford at 130k.

I use my truck primarily for daily driving and occasional out of state trips. I no longer tow anything of any weight (trailer with ATVs does not count as "weight").

My goal is to be able to have 400-450 hp after the new injectors and mods. Based upon having an '02, I am pretty sure I have PMRs, so I do not want to push them too far.

My intention is to install new injectors, Hydra (with Gearhead tunes), RiffRaff FRx, new Glo Plugs & wiring harness kit, and Wicked Wheel 2 mod to stock turbo. I was not planning to do any other upgrades at this time (HPOP or Turbo).

I have been looking at getting 180/80 injectors from FFD, Unlimited, or Rosewood.

Looking for thoughts or input on my proposed path forward. I want to make sure I make a wise choice and not set myself up for failure in the future.

Thanks in advance!
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post #2 of 4 (permalink) Old 08-31-2019, 03:09 PM
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Are you really sure that your inability to start in cold temps is because of your injectors?
You might want to check out your glow plug system. Click on the Hard/No Start link in my signature.
Of course if you want to upgrade your injectors as well, go for it. I don't have any input for you on that.

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'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 4 (permalink) Old 08-31-2019, 04:29 PM Thread Starter
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I suspected glow plugs as the cause and planned to replace them before the end of summer. I figured while I was in there I would do injectors at the same time and be done for a while. The last 12 years, I have only had to replace batteries, alternator, starter, and water pump - hoping after this will have the same track record going forward.

As it is during the summer, the first start of the day is rough until I stomp on it. Blows out a good black cloud and is then good for the rest of the day, regardless of the number of starts. Below about 40-50 degrees it takes forever to start unless plugged in. If plugged in, it starts fine.
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post #4 of 4 (permalink) Old 09-01-2019, 01:04 AM
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I would test the glow plug relay before I did anything else, then test the glow plugs. It should start right up in the temps without any help.
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