Stutter while starting - Ford Powerstroke Diesel Forum
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Old 10-12-2013, 03:11 PM
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Stutter while starting

I recently had a decent amount of work done to my 06 6.0. My truck recently took a dump on me and had a lot of work done to it. My head gaskets went up along with a cracked head according to my shop and I had them install new head studs, new heads, a bullet proof oil cooler, a sinister EGR delete, an Air Dog fuel filter/pump and an sct tuner.

The truck runs great except when I start it up cold and occasionally when warm the truck will start up right away but it will stutter for a second or two before running at idle almost as if its not getting fuel.

At first I thought maybe their was some air in the oil because of the new cooler or air in the fuel lines but now 1 week into driving the truck I don't think that is the case anymore.

Anyone else experience this issue?
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Old 10-12-2013, 08:42 PM
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You may some stiction issues. Its caused by coking inside the injector. The systems uses high pressure oil to actuate the injector. In a lot of cases using dino oil has been linked to causing the coking issue. There are a couple of oil additives that you can try, Hot Shots Secret is One, and AR9100 by Evergreen. Switching to Full Synthetic is also recommended. Many users use Rotella T6 for our Diesels.
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