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Old 08-13-2018, 05:24 PM   #21
Jersey Devil
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Originally Posted by Phil P View Post
Hi

I supervise the maintenance of a fleet of off road equipment.

Tractors changed every 500 hours.

5 7.3 ford diesels only changed if water light comes on or fuel restriction. Some times as much as 3 years between changes.

Stationary engines every 500 hrs and these run against the governor or wide open full power sometimes as long as 7 days 24 hrs a day.

We are getting 20 plus years between overhauls.

We actually get less time out of exhaust system than we do most anything else.

The fuel filter on our Silverado gets changed when the display says 10% life left.

Phil P
Thanks for the info.
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Old 08-14-2018, 04:27 AM   #22
Phil P
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Phil it’s not a rumor when Ford requires a picture of the inside of the high pressure fuel pump before they will warranty it. If there is any sign if rust of dirt sorry you are on your own no matter the mileage. It’s abuse according to Ford.
Lynwood

Hi Lynwood

I don’t disagree with your statement but the system is much more robust than most think. Introduction of water or any other contaminate without immediate steps to correct same will result in failure of the pump and associated parts on any diesel injection system.

The Duramax is rumored to need replacement of pump, and injectors around 130,000 miles. I have a friend that lives down the road from me got 600,000 on his Duramax without having problems with the injection system however glow plugs are different story.

Another one living in costal NC had the pump changed after failure on his 2005 and only 2 injectors still running good. This work was performed by the TV dealer.

I now have 220,000 miles on the original system and haven’t made any modifications to it seeing as how I have been unable to find a new 3500 4X2 to replace it I will still keep running it until I find a new one.

Phil P
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Old 08-15-2018, 01:22 PM   #23
Professor Steve
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Hi

Just had same decision on my 2016 Sierra. Dealer said ok to run it down a bit before changeout. As said previously depends on other factors but seems premature to replace at 35%.
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Old 08-15-2018, 01:45 PM   #24
Mack Butterfield
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Replace the fuel filter when the CHANGE FUEL FILTER message in the Driver Information Center (DIC) comes on. If the fuel filter has not been replaced, or if the vehicle has been driven 36 000 km/ 22,500 mi or more since the fuel filter was last replaced, replace the filter and reset the message. The diesel fuel filter may need to be replaced more frequently, based on biodiesel usage, driving in climates with severe dust, off-road driving, or towing a trailer for extended periods. The fuel filter should be replaced at least every 2 years.
When the LML came out the change interval changed, before this version of the Duramax, change interval was much sooner.
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Old 08-15-2018, 02:33 PM   #25
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Every other oil change, or 30k miles (Thats 2x the manufacturers recomended schedule). Do it yourself and youll see the filters are very clean at 15k miles. You can reset the DIC at 15k, when you change the oil. Save some $$ as the filters are expensive.
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Old 08-15-2018, 02:57 PM   #26
Bob450
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Fuel filter

I change my fuel and air filter when I change my oil at 10,000 on my f350 2017 f350. 6.7
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Old 08-15-2018, 04:52 PM   #27
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2013 F-350 6.7 diesel. I observe factory interval of 15K miles for filter change; 5K for separator drain. Ford does not indicate a percentage so I can't help there. I do have an aftermarket water separator/filter installed before the first factory filter. See http://www.dieselsite.com/fuelsystems-cpr.aspx I replace the aftermarket filters at 5K intervals. As noted by others, biodiesel and unknown fuels when traveling can shorten the interval.
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Old 08-15-2018, 09:00 PM   #28
Whitewolf
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Oil, oil filter and both fuel filters are changed every 15K. Coincidently, that's when the display says everything is due for a change.
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Old 08-16-2018, 12:27 AM   #29
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I change the fuel filter every other oil change so about 10,000 miles. I change the oil every 5k. Itís over kill but the cleaner you keep the inside the longer parts like injectors will last IMO.
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Old 08-16-2018, 01:54 AM   #30
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GM fuel filter change.

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Originally Posted by dpam View Post
I have a 2017 GMC duramax diesel. The DiC states I have 35% left before the fuel filter expires. So, when do the majority of the MOC members change out their diesel fuel filters? Please advise at what % you change your diesel fuel filters?k
I change mine every other oil change or about every 14,000 miles. Special Note. Never use any filter other than factory AC Delco filters. They are a 2 micron filter and almost all of the aftermarket filters are 10 micron. I recently had to have my injectors replaced and the shop said it was most likely caused by using aftermarket filters.
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Old 08-16-2018, 04:51 AM   #31
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Good grief!! Just read the owner's manual and follow that as your guideline. Manuafacturer's IBs are always conservative but they do know their powerplants.
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Old 08-16-2018, 08:53 AM   #32
RichardD
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Fuel filter

I was an automotive manager for 25 years for onr of the largest fleet of trucks in the US. We always followed the manufacturer's recommended intervals for all fuild and filter changes. The fuel filter life is greatly effected by the quality of the fuel that passes through it. If you stop for fuel at a small country store and there is only one diesel pump located out behind the store, you can only imagine how old the fuel is, when was the last time that the pump's fuel filter was changed. Old diesel fuel can actually grow bacteria, this bacteria can be transferred to your truck's fuel system and cause all sorts of problems and cost you a lot of money and down time. If you have to wait in line to get fuel, it is worth the wait because the fuel you are get will be pretty fresh.
Another way to get all the life you can out of your fuel filter is to never fill your tank when a fuel delivery truck is making a delivering. When they open the valves on the truck, there is a rush of fuel mixing in with the fuel that is left in the tank and that rush disturbs all of the junk that has settled in the bottom of the storage tank. Some of this junk will pass through the pump filter and enter your truck's fuel system.
On my 2015 Duramax, I typically wait until it is around 10% before I change it or if it is below 20% and I am getting ready for a 1000 plus mile trip.
I hope this helps.
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Old 08-16-2018, 09:16 AM   #33
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Thanks Richard
Lynwood
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Old 08-16-2018, 10:05 AM   #34
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Thank you for all the valuable feedback to my original post.

Regards,

DPAM
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Old 08-16-2018, 10:59 AM   #35
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This has been an interesting thread. I want to add one more item from my perspective. All it took for me to follow Chrysler's recommended replacement intervals was to learn the cost of the Cummins injectors.
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Old 08-16-2018, 12:43 PM   #36
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I change mine every other oil change. And no matter what they get changed Right before temps take a big dip.
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Old 08-17-2018, 04:46 AM   #37
Phil P
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Good grief!! Just read the owner's manual and follow that as your guideline. Manuafacturer's IBs are always conservative but they do know their powerplants.



What a novel idea ďread the manualĒ. LOL

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