Injector questions - Ford Powerstroke Diesel Forum
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Old 06-18-2009, 12:55 PM
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Thumbs down Injector questions

My truck has developed low power in the cold mornings. Feels like a potato up the tail pipe. There is 74K on the truck.

Took the dealer 3 tries to get somewhere with it...
He has replaced the turbo and some other adjustments under warranty. Now he is saying that the 2,3,7 injectors are an issue. They do not give a code, but do not pass the "test" when cold. and they are not under my extended warranty.
When the truck is warm (10 min) it runs great. I run 15/40 dino oil.

What is going on?
Can I replace just the 3 injectors?
Will going to a synthetic oil or a 5/40 help?
What will happen if I do not change these?

thanks
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Old 06-18-2009, 01:03 PM
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Just going on the limited info you posted, I'd say to change all 8 injectors at the same time. Brand new ones would be best, but ford remans should last a while too. IMO the 6.0 injector is a bad design from the factory, but with proper maintenance (good oil, frequent changes. Fuel filters changed regularly, and good clean fuel all the time) they will last a long time. The problem with a reman injector is there is just no guarantee they will perform for long. They might last 150k, or they might be lucky to make it 20k. It's kind of a crap shoot.
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Old 06-18-2009, 01:43 PM
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where do I get a good deal on these injectors?
The cost it making me think about dumping the truck...
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Old 06-18-2009, 03:57 PM
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IF the truck only has 74,000 doesn't it have a 100,000 mile warranty?
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Old 06-18-2009, 04:18 PM
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Sold over 5 yrs ago...
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Old 06-18-2009, 06:56 PM
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From the info presented it sounds like you have sticky injectors. What ford is telling us is happening is there is varnish building up on the spool valves in the injectors. There was a reflash that is supposed to help the situation. It's called the inductive heat strategy. It may be in there already. especially if it has been in to the dealer several times. You may be able to clean this up a little bit by running motorcraft oil. Otherwise injector replacement is the way to remedy this.
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