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Discussion Starter #1
i have an 03 with 140,000 miles on it.
MODS:
egr delete, 4'' turbo-back exh, new hpop, air-dog fp100.
Replaced ipr when i did the egr delete, also cleaned turbo and put in new center section.
Truck takes prolly 10-15 min. of warm up time till it starts running good.
When fired up cold, it has a slight miss for about 10-15 min., warms up and runs great, doesnt miss a beat.
10min. seems a little long to warm up and actually start running good to me. i figure 5min. should be long enough.

My question is, what kind of high pressure oil system upgrades can i do?
 

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burning mine saving yours
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183 Posts
What's your ficm voltage readings?
 

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255 Posts
sounds like an injector problem to me, I would try rev-x as well as checking the ficm voltage
 

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586 Posts
Your 03 has a "better" hpop. They seem to flow a little better than
the newer ones and are 03 specific.
It sounds like you might be starting to get stiction.
Stiction will cause a rough cold start and a miss/ rough idle till it warms up a bit.
I've yet to try the rev-x but it's worth a shot. I'd also try some 2 stroke oil in the fuel for a few tanks and see if that helps. Unfortunately it's hard to rid it of stiction once it starts other than to replace the injectors. Normally a hpop problem will be more obvious on a hot start or a hot engine (thinner oil).
 

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The Unseen Mod
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4,126 Posts
Please explain how the 03 is a better hpop ?????

Stiction I woud agree with you about.
 

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Broke!
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:whs: id like to know why the 03's are better
 

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UMMMM hello? dont you two know nothing? The 03 turbos are the best why not the hpop? everybody wants it.:doh:
You forgot egr cooler
When I get home I'll post up the info. But feel free to google it.
 
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