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  #1  
Old 12-21-2009, 06:07 PM
Viking Heavy Diesel

 

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Out of ideas

I ran up to Norman today and got me a new fuel pump for the truck. As some of you know it was only making 40lbs and sometimes as low as 20lbs. Would shutter when giving it fuel and had very high EGT's. Well I installed the new pump and the only thing it fixed was the shuttering. Changed the fuel filter (again) and that didnt fix anything either. Any ideas.
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Old 12-21-2009, 06:31 PM
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id check your exhaust manifolds and uppipes could be leaking causing the high egt's
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Old 12-21-2009, 06:43 PM
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A bad injector
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Old 12-21-2009, 06:45 PM
Viking Heavy Diesel

 

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I dont want it to be a bad injector.
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Old 12-21-2009, 07:08 PM
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What's the fuel pressure looking like now?
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Old 12-21-2009, 07:10 PM
Viking Heavy Diesel

 

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About the same but the needle is not jumpy anymore
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Old 12-21-2009, 07:12 PM
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High Egt

Maybe a partially closed EBPV...
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Old 12-21-2009, 07:21 PM
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If you can run some tanks of B20 it'll clear out your fuel system up through the injectors. GOOD STUFF. Ran three tank fulls and had a clogged filter from all the crap in the system. It works pretty dang good.
Ok so fuel pressure that same. Maybe a fuel leak somewhere? In the return line off the bowl or after the bowl in the hard lines going into the heads? Fuel pick up screens in the tank dirty?
And could the high EGTs be because of low fuel press? I wouldn't see how though.
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Old 12-22-2009, 06:20 AM
Viking Heavy Diesel

 

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My EBPV is in good working order. I went through it when I did my Wicked wheel last weekend.

I am going to check all of my connections this afternoon.
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Old 12-22-2009, 07:47 AM
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I know on these trucks, the hard fuel line from the bowl to the back of the passenger head has a clamp around it at one point farther back to keep it from moving around. Problem was that it wore a hole in the line. I had a SMALL leak from that. Just another thought.
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