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fuel filters 04 & 05

gmc3500sierra

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gmc3500sierra New Member

gmc3500sierra

Posted
Posted

 

:thumbs::thumbs: I have a 2005 GMC 3500 4x4 6.0L gas eng. I have been told that there is no external fuel filter. Apparently GM changed design in 2004. I travel to Mexico frequently where occasionally you get a slug of gas with fine silt (dirt) in it. Currently after several trips I find it necessary to change the Fuel filter on my old 1990 suburban which has an external fuel filter up under the frame. Did GM actually think an external fuel filter which is easily changed on the road was not necessary? Did they change the pore size on the filter sock in the tank to a smaller size? If so will it potentially clog up and require dropping the fuel tank on the road to alleviate a clogged filter? If not will the silt which passes the sock filter in the tank cause the multiport fuel injectors to clog or cause premature engine cylinder wear? Is there anyone who might have some technical advice on this so that I can reasonably fix my vehicle on the road should i get some bad gas?

redvett Senior Enthusiast

redvett

Posted
Posted
:thumbs:  :thumbs: I have a 2005 GMC 3500 4x4 6.0L gas eng.  I have been told that there is no external fuel filter.  Apparently GM changed design in 2004.  I travel to Mexico frequently where occasionally you get a slug of gas with fine silt (dirt) in it.  Currently after several trips I find it necessary to change the Fuel filter on my old 1990 suburban which has an external fuel filter up under the frame.  Did GM actually think an external fuel filter which is easily changed on the road was not necessary?  Did they change the pore size on the filter sock in the tank to a smaller size?  If so will it potentially clog up and require dropping the fuel tank on the road to alleviate a clogged filter?  If not will the silt which passes the sock filter in the tank cause the multiport fuel injectors to clog or cause premature engine cylinder wear?  Is there anyone who might have some technical advice on this so that I can reasonably fix my vehicle on the road should i get some bad gas?

 

 

 

 

The EPA required the gas tank vapor emissions to be reduced and this change is for all MFR's. This system is now called the returnless fuel system there is no return line and the result is cooler fuel and lower emissions & more HP. You must use First Tier Quality Fuel. The system is supposed to be good for 100K+ use good fuel and you will be OK.

Mighty HD Senior Enthusiast

Mighty HD

Posted
Posted

Pretty stupid if you ask me.

 

I wander if there's a way to add an external filter?

 

What is required for the filter change besides dropping the tank/removing the bed?

redvett Senior Enthusiast

redvett

Posted
Posted
Pretty stupid if you ask me.

 

I wander if there's a way to add an external filter?

 

What is required for the filter change besides dropping the tank/removing the bed?

 

 

 

 

Well when you get over 100K if you used top tier fuel than you probably would have to change pumps anyway. I wouldnt worry about it. I have had 13 trucks since FI was available in 87 and average 1000 a month without a fuel pump failure and have never changed a filter either. I dont expect to on my current truck. Your wasting your money.

  • 2 weeks later...
Jacqson Enthusiast

Jacqson

Posted
Posted
Pretty stupid if you ask me.

 

I wander if there's a way to add an external filter?

 

What is required for the filter change besides dropping the tank/removing the bed?

 

 

 

 

Well when you get over 100K if you used top tier fuel than you probably would have to change pumps anyway. I wouldnt worry about it. I have had 13 trucks since FI was available in 87 and average 1000 a month without a fuel pump failure and have never changed a filter either. I dont expect to on my current truck. Your wasting your money.

 

 

 

 

 

Personally, I think an external or extra fuel filter is a good idea. It doesn't matter which kind of gas you buy it all has a little bit of crap in it and an extra filter is not a bad thing. I wouldn't call it a waste of money, I'd call it piece of mind. :chevy::D

redvett Senior Enthusiast

redvett

Posted
Posted

Personally, I think an external or extra fuel filter is a good idea. It doesn't matter which kind of gas you buy it all has a little bit of crap in it and an extra filter is not a bad thing. I wouldn't call it a waste of money, I'd call it piece of mind. :chevy::D

 

 

 

 

 

Previously we had a fuel system that returned unused fuel to the tank requireing a large filter but now in the returnless fuel system the fuel only goes through the filter and straight to the injectors no need for the filter. Federal required vapor emissions is the results of these changes. Dont blame GM they are just doing what the law requires.

KYBullet Enthusiast

KYBullet

Posted
Posted

Personally, I think an external or extra fuel filter is a good idea. It doesn't matter which kind of gas you buy it all has a little bit of crap in it and an extra filter is not a bad thing. I wouldn't call it a waste of money, I'd call it piece of mind. :):cool:

 

 

 

 

 

Previously we had a fuel system that returned unused fuel to the tank requireing a large filter but now in the returnless fuel system the fuel only goes through the filter and straight to the injectors no need for the filter. Federal required vapor emissions is the results of these changes. Dont blame GM they are just doing what the law requires.

 

 

 

 

 

 

SOOOOOOOO-WHAT YOU'RE SAYING- I've got 25,000 miles on my truck and don't have to worry about changing my fuel filter until I get to 100?!?!?!?!?!!?! Then-when I do they have to remove the tank?

Jacqson Enthusiast

Jacqson

Posted
Posted

Personally, I think an external or extra fuel filter is a good idea. It doesn't matter which kind of gas you buy it all has a little bit of crap in it and an extra filter is not a bad thing. I wouldn't call it a waste of money, I'd call it piece of mind. :cool::eek:

 

 

 

 

 

Previously we had a fuel system that returned unused fuel to the tank requireing a large filter but now in the returnless fuel system the fuel only goes through the filter and straight to the injectors no need for the filter. Federal required vapor emissions is the results of these changes. Dont blame GM they are just doing what the law requires.

 

 

 

 

 

I know how the fuel system works and understand what you are saying, but instead of having your fuel go through one filter, have it go through two filters. The nominal micron rating of the stock filter is not very small so you can have a second filter with a smaller micron rating than the first(OEM filter)filter which will capture more contaminants in the fuel. You would be quite surprised how much crap the secondary filter captures that would otherwise enter your fuel injection system and it will not impact your vapor emmission requirements one bit. Think about how much crap two oil filters will collect instead of one. I am a firm believer in a secondary filter and it's a cheap insurance policy for your engine. :)

04-silver Enthusiast

04-silver

Posted
Posted

I don't think having an external filter as a second is a good idea, it doesn't do anything for the internal filter. Which I thought was the initial problem here. :)

 

An external filter only is probably better, but then we could change this ourselves and GM/Dodge and that other one :cool: would lose money from the people that go to dealers to have their work done.

 

My .02 (slow day here)

 

oh yea that federal thing, sounds plausible :P

 

:eek:

John

Jacqson Enthusiast

Jacqson

Posted
Posted
I don't think having an external filter as a second is a good idea, it doesn't do anything for the internal filter. Which I thought was the initial problem here. :)

 

An external filter only is probably better, but then we could change this ourselves and GM/Dodge and that other one  :cool: would lose money from the people that go to dealers to have their work done.

 

My .02 (slow day here)

 

oh yea that federal thing, sounds plausible :D

 

:eek:

John

 

 

 

 

The internal filter was mentioned as the initial problem , but he also asked about getting his fuel injection system clogged up as well. As I stated above, the initial filter in the tank does not have a very low micron rating so it allows a lot of contaminants to pass through it. If you put a secondary filter between the initial and the engine with a smaller micron rating then it will capture all the contaminants that pass through the initial filter and prevent them from doing potential damage to your engine. There is nothing you can do about the filter in the tank if it clogs up, but if you use a secondary filter you can prevent contaminants from getting to to the engine. Look at it this way, if you have to replace the filter in the fuel tank and you have a secondary filter,at least you won't have to spend the extra cash and service the injection system because of contaminants in the fuel. A very small investment in a secondary fuel filter could save you major dollars down the road. It's your money, spend it as you see fit. :P

04-silver Enthusiast

04-silver

Posted
Posted
I don't think having an external filter as a second is a good idea,

 

Let me re-phrase that: :cool:

I don't think having an external filter as a second is a good idea, except for keeping contaminates out of the injectors

 

Anyway, like I said it's a slow day, just making chit chat,(posts) not trying to get anyones goat.

 

:)

John

Jacqson Enthusiast

Jacqson

Posted
Posted
:) Are the tanks in our turcks metal or plastic? And anyone have the part# for these little jewls

 

 

 

 

They are actually a plastic composite and the part numbers will vary depending on the application. Check with your local dealer. :cool:

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