I will have my anti algae stuff by the end of the week. Between then and now I will stock up on a few filters. I will keep you guys updated on the injectors, but I probably will not know anything until a week or two from now.

I am not that concerned, but my father is going nuts about it. I understand its a 21 year old diesel. He thinks it should perform like a gas engine. He complains its slow and something is wrong with it. He has never owned a diesel, this is my second.

I think the fact that it even starts in sub zero temp within a few turns is a testament to my engines greatness.

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1984 300D Turbo.

That's a new one for me. There is no equivalent issue with MB diesels, AFAIK. It sounds to me like Ford has a design issue.

I bet even a new CDI would run like crap at those temps for the first few minutes.

Are you running a good synthetic oil? Do you plug it in?

I'd run 0w-40 or 5w-40 for those temps, cranking speed will increase greatly.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

I believe there might be an extended glow relay but could be wrong. If so they invented it pretty much to eliminate this problem. I do not know if this applies to your car or not. Also as it is an older engine and is possible to have one cylinder a little lower in compression than the others (not bad) that cylinder might drop out after the glow plug cools down until residual heat builds up enough for it to fire regularily causing the miss. I would try to defeat it with the extended glow relay if available as it is the cheapest option probably. Remember if engine is firing off at -12 it is basically still pretty good.

Update.

Pulled injectors today and got them tested.

Injector 1: 5 bars below pressure [Supposed to be 135 bars]
Injector 2: Pisses Fuel
Injector 3: 3 bars low
Injector 4: 5 bars low
Injector 5: 3 bars low

I am getting all of my injectors rebuilt, I should have them back in tomorrow.
I will let you know how it runs with the new injectors in. And by new I mean rebuilt.

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1984 300D Turbo.

#2 would definately cause a problem with the car running...

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

if the spray pattern is decent, I'd leave the 4 alone. Get the other one right. BEWARE getting rid of those injectors and replacing with 5 "rebuilt". depending on where you get it done you may be OK, or be really sorry you don't have the old injectors back.

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.

Yeah whoever is doing the rebuilding make sure they test the new nozels. Finding them bad out of the box is common.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200