How do I change the fuel filter on a 2002 gmc sierra duramax deisel? And where is it located?

Hi Lone Ranger,

The first link offered has information to set you up US Diesel Parts Fuel Pumps Injection Pumps and Injectors GM Duramax LB7 . Now on to the location. Here is a quick feed to watch duramax cp3 pump swap . Lets finish with this gentleman's input and contribution. Duramax cp3 high presure fuel pump removal .


This will provide a look and see distant generalization of what you may be getting into and some live experiences of those who did. Fare. Well.

6 6 Duramax Crank no start GM Chevy GMC Tech Tips Angry mechanic
Duramax LLY FICM Injector Trouble Misfire Part 1

suggest you look at a bunch of these youtube videos .

Disconnect the electrical connector for the "Water-In Fuel" sensor from the lower end of the filter housing. Then the filter assembly simply unscrews like an oil filter.After the fuel filter is off, you must unscrew the sensor from the lower end of the old filter and transfer it to the new filter. Then screw the new filter into place. There is a screw on the top of the filter housing to bleed the air from the fuel filter assembly. Loosen or remove the screw and pump the hand pum on top of the filter housing until fuel comes out the bleeder. Then tighten the bleeder and start the engine. If you did everything correctly, it should start right up and continue running. If it starts the dies in a couple of seconds, then you must perform the bleeding process again. (SEE PICTURES BELOW)

Hint: Sometimes it is much easier to get to the filter through the right wheel housing. It may be easier to support the vehicle and remove the right front tire to get to it.

they have a extnded warranty on the speedometer cluster 7 years or 70,000 miles

the fuel filters are in tank and not serviceable on most newer gmc trucks until the fuel pump dies

u need to have the dealer do this or u will end up with a no start, it requires special tools and procedures

its on the frame by the fuel tank!!!!!

Problem with Diesel Fuel System. Gmc 2002 duramax 2500 HD 4x4 will start 

There is a priming pump on top of fuel filter assembly. Had to have somebody else pump it while turning the motor over, It fired right up. Was looking for a while for this pump, because it doesnt look like a pump, it is metal on top of fuel filter.

i would change the fuel filter i had the same issue on a 01 chevy duramax. as well as put some 911 emergency in the tank. you get that any auto parts store.