Fault codes present

[Ozymandias]

P0868 is still transmisson pressure low, maybe the filter isn't installed properly.

P1011 is High pressure pump CP3 not reaching desired pressure.

P000F is Rail pressure relief valve popped open - which could be related with the former code.

 

[AH64ID]

You all oversee the popping PRV.

I see the code, but there is nothing that specifically monitors the PRV position and just an algorithm.

Based on the fuel filter fixing the issue for a few thousand miles I don’t think it’s the PRV but rather a supply issue starving the CP3 and triggering the PRV code.

If the lift pump is failed the CP3 would struggle more and more with a progressively dirtier fuel filter and end up with low pressure that the computer could interpret as a popping PRV.

Just a thought based on the fuel filters effect.

 

[Turbo Terry]

Yes very crappy fuel stations mostly along the Yukon Alaska border towns. Sometimes your running low and just have to buy it from these places.. It’s been my experience that theses few stations run out of fuel quire frequently because of supply issues distance and /or lack of paying for the fuel deliveries they received in the past. These stations are old Funky dirty pumps and old tanks in the ground. You will know when you’re at one. I just hate to put the nozzle in my truck but this is all there is . Sucking dirty fuel from the bottom of a very old tank. Yuk buyer beware and change your fuel filters when you get home. Just my thoughts

 

[Bobby A]

have you tried using this stuff or is that what you meant by Diesel Clean ( most people mean power service silver bottle but Power Service has a specific tank clean product available) which is what I am recommending . https://www.walmart.com/ip/Clear-Di...g5ObBob10tLOXFXno2WvkXr_dRXeJGToaAhTVEALw_wcB

Grumpy, I have never used the product your referring to how does it work?? By adding it to your fuel tank is there any fear of damaging injectors or anything else in the engine ??

 

[Bobby A]

I see the code, but there is nothing that specifically monitors the PRV position and just an algorithm.

Based on the fuel filter fixing the issue for a few thousand miles I don’t think it’s the PRV but rather a supply issue starving the CP3 and triggering the PRV code.

If the lift pump is failed the CP3 would struggle more and more with a progressively dirtier fuel filter and end up with low pressure that the computer could interpret as a popping PRV.

Just a thought based on the fuel filters effect.

WOW !! this information is way over my head, should I have my mechanic remove the fuel tank, clean it out and replace the life pump ?? Is there a way to test this pump for flow before I have all that work done ?? If they remove all the fuel in the tank and clean the tank and replace the lift pump can you reuse the fuel that has been taken out ?? I take the truck into my mechanic tomorrow. Please advise. Thank you

 

[AH64ID]

WOW !! this information is way over my head, should I have my mechanic remove the fuel tank, clean it out and replace the life pump ?? Is there a way to test this pump for flow before I have all that work done ?? If they remove all the fuel in the tank and clean the tank and replace the lift pump can you reuse the fuel that has been taken out ?? I take the truck into my mechanic tomorrow. Please advise. Thank you

I would test for pressure at the CP3 inlet.

 

[Grumpy8811]

Grumpy, I have never used the product your referring to how does it work?? By adding it to your fuel tank is there any fear of damaging injectors or anything else in the engine ??

you just run it as you would regular old fuel system additives and it ends up being burned in the combustion chamber..

mixing directions are on the bottle.

I use the stuff once a year as a maintenance act.

 

[Bobby A]

Thank you all for your very helpful advise, I'm getting ready to take the truck in now. I wrote down all your suggestions and will discuss with my mechanic. I will post back when I get some answers. thanks so much.
Bobby A

 

[Bobby A]

update,
heard back last night from my mechanic, as most of you may have thought, fuel pump very low pressure. it was recommended to replace with external pump. the FASS system, and doing some research before hand, that's the same system that genos garage recommended. also going to replace some kind of sensor on the trans to hopefully not to experience the cel code related to the transmission code from popping up. i will post back in a couple days when work has been completed. thank you all for your expertise.

 

[Ozymandias]

There is nothing better and more reliable then the factory intake pump. That's proven.
Don't downgrade your vehicle.

 

[AH64ID]

I agree with @Ozymandias and would not go the FASS/external pump route. I would put a replacement Mopar pump in the tank, change your fuel filter and get back to business.

The external pumps do have a place, but really aren't an upgrade below ~550-600rwhp.

 

[Bobby A]

Well gentlemen, I guess I may have jumped the gun and going to have to live with the decision on the FASS equipment. I thought for sure you guys would of said yes on the external pump system. I don't know all the Technal jargon, but I spent about 45 minutes this afternoon with the owner/diesel tech, and he was very adamant and assured me that this was the best system for my truck. I do trust this man and they have earned my business a couple years back, he is a owner operator of this shop and the volume of trucks that come into his facility tell me it's a reputable establishment. Again, I will have to live with that. I will post back after I put some miles on the truck. I truly appreciate all your wisdom. Thank you,

 

[AH64ID]

It sounds like what’s done is done, but there are some things to verify with your new setup.

Be sure to double check what filters are on the FASS and absolutely do not have the OEM filter deleted.

Many of the filters for the external pumps are not as good as OEM and insufficient for a HPCR.

Also, have the heater installed in the FASS.

What size FASS did he install? The higher flowing units flow more than the filters are rated for and should be used for race only applications.

 

[Ozymandias]

FASS was a great solution years ago, but OEM stepped up greatly and now they are the leader of the pack.

 

[Bobby A]

It sounds like what’s done is done, but there are some things to verify with your new setup.

Be sure to double check what filters are on the FASS and absolutely do not have the OEM filter deleted.

Many of the filters for the external pumps are not as good as OEM and insufficient for a HPCR.

Also, have the heater installed in the FASS.

What size FASS did he install? The higher flowing units flow more than the filters are rated for and should be used for race only applications.

I will get those answers and post back. thank you guys for your understanding, again I have to live with the decision.

 

[Bobby A]

Just wondering guy, if I was going to go with the Mopar fuel pump, where would be the place to get it?? I'm sure it's not a well-stocked part for a truck thats going on 18 years old.

 

[Grumpy8811]

Just wondering guy, if I was going to go with the Mopar fuel pump, where would be the place to get it?? I'm sure it's not a well-stocked part for a truck thats going on 18 years old.

I generally start looking for Mopar Factory parts here https://www.moparfactoryparts.com/ and if that doesn't work I try Rock Auto. Of course Genos might have a genuine Mopar too.

 

[Topzide]

RockAuto has a Delphi unit; https://www.rockauto.com/en/moreinf...Oh39NtEAFL85fvPXEDzUMBF2xkXsA4OGbB181ktuyu08=
They make a lot of the OEM units across many platforms. Good units! Know of many people who have used them over the years.
Genos doesn't list an in tank pump for his truck.

 

[Bobby A]

Thanks guys, Genos was the first place I called, and that is correct they don't carry it, they were the first ones to mention about the FASS system.
Thank you, you guys are the best!! Have a good Sunday, Blessings.

 

[Bobby A]

It sounds like what’s done is done, but there are some things to verify with your new setup.

Be sure to double check what filters are on the FASS and absolutely do not have the OEM filter deleted.

Many of the filters for the external pumps are not as good as OEM and insufficient for a HPCR.

Also, have the heater installed in the FASS.

What size FASS did he install? The higher flowing units flow more than the filters are rated for and should be used for race only applications.

The truck is still in the shop so I don't have answers, but just wondering what is the reason for NOT deleting the OEM filter ?? Thank you