I still haven't done the lines from tank to splitter. Only because there's no real easy way to get to the fittings on the tanks since my tanks are under my sleeper. And now that it's 100+ degrees out here in AZ I'll save it for when it cools back off out here. I did replace lines from splitter to fuel filters and motor and the rear return line off the back of the head to the splitter. I think the truck and motor benefitted from replacing those lines. The truck runs better now just from those being replaced. Really hard to say when they were done last. The truck has 2.3 million on her so who really knows. I do think I did have a small pin hole in my return line as the top of the trans was always damp. Now that I replaced the line the trans stays dry now.
replacing fuel lines on my 379 pete
Discussion in 'Trucks [ Eighteen Wheelers ]' started by prerunner404, Jan 5, 2016.
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know many people would think that replacing the fuel lines is going to change for the better quite a lot and some times it does, other times you don't feel it but still does, but the main thing is at this time most of these trucks have a lot of miles and the worst thing is to get stranded in the middle of no where over a simple hose and that can be very expensive.
I'm one bracket away from totally re arrange the rest of the fuel system, but it would happen soon , maybe next week, I also order an AirDog, that should be here in a few days too, my secondary filter base is going to be this one.Attached Files:
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Saturday while getting fuel the temperature went from 98 to 107 in about 15 and than it went back to 92, but man i felt the sun on my back only comparable to the Kalifornia, Nevada heat, good thing it was just a few minutes.
My working range is with in South Florida, so we only see temps in the hi 40's for couple of hours few times a year, very few times. -
I'm still thinking about doing a fuel cooler too as we see up to 125 deg temps here in AZ. So would the return line off the back of the head go into one side of the cooler and then feed back out the other side of the cooler back to the tanks?
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[QUOTE="prerunner404, So would the return line off the back of the head go into one side of the cooler and then feed back out the other side of the cooler back to the tanks?[/QUOTE]
yes.
I always wanted to cool the fuel coming out of the tank before it got to engine, but so many people was doing it after the engine and it made total sense, now the fuel tank is not nearly warm, as it used to be very hot not warm.NightWind Thanks this. -
Good to know. ANy idea on what kind of cooler to buy?
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prerunner404, just wanted to mention something, just in case you don't see the results I've got.
keep in mind where I live the temperature is always at high 80's to mid 90's, but humid, which means once you start rolling it feels cooler, so that's why I see 40 degree difference from before.
I know Arizona is hot and dry, I don't even want to remember the time I lived in Vegas where I had a hard time breathing from the dry heat. -
Makes sense. What kind of cooler did you use?
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