fuel filter

Asked by Mar 22, 2016 at 08:35 PM about the 2004 GMC Yukon XL 2500 SLT 4WD

Question type: Maintenance & Repair

I have a 2004 gmc Yukon xl 2500 6.0l that i can't
find the fuel filter. I've looked all along the fuel lines
between the front tank and the engine along the
frame rail, between the rear tank and the main
tank, and even in the engine compartment. The
only place i can't see is on top of one of the fuel
tanks maybe, but i don't want to just take the
tank(s) down just to find out that it's not up there.  I
bought the new filter, it's an inline filter. Please
help?

5 Answers

90,815

See pic.

1 out of 1 people think this is helpful.

Is this a 3/4 ton Yukon xl???

90,815

Well there are only 2 choices and I went with the easy one, the other is in the fuel tank on the bottom of the fuel pump/sender assembly, I don't believe that this is a serviceable part even aftermarket, you have to replace the entire assembly.

Thanks Mark, that's what i figured. There's nothing wrong with the fuel filter but i just wanted to change it since i just bought the vehicle and i don't know when it has last been changed. Others have told me the same thing, that it may be in the sending unit/fuel pump assembly in the tank and also that it may be unservicesble. I also read that some guy who had the same setup said he had to add some sorta additive four times a year to help keep this fuel filter cleaned out. I hope i don't have to do that?

90,815

Techron is a great fuel additive, I have never had any problems with the fuel filter plugging up in any my rigs even when I change them there is very little stuff that back blows out of the filter on my Jeep and my Yukon.

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