DIY – Fuel Filter Change – How GM wants the Techs to do it – LM2 Duramax

DIY – Fuel Filter Change – How GM wants the Techs to do it  – LM2 Duramax

Pretty simple Fuel filter change on a 2021 Silverado 1500 with the LM2 3.0L Duramax Diesel.

Per GM document from Service Information:
1. Clean Housing
2. Drain Water/Fuel Separator
3. Remove Water Separator Assembly
4. With assembly upside down, remove filter from cap
5. Remove and discard 2 o-rings
6. Clean Cap, Install Cap o-ring and install filter into cap
7. Install o-ring on filter housing pipe
8. Install and tighten to 18 ft lbs
9. Prime fuel system – Ignition on for 2 minutes. Ignition Off. Start the vehicle. If the engine does not start, repeat. if engine starts but runs rough, increase idle slowly to purge air from fuel system. Inspect for leaks.
10. Reset fuel filter monitor on dash.

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Comments

@ninetyfive1 says:

Thanks, saved me $$, easy job! You will want something to catch the fuel, quite a bit comes out! I had a drain pan there, worked great.

@WRXXXual says:

Wonderful video, and to the point! This is going to save some serious money!

@salvadorrojas8290 says:

This video is for diesel engine?

@Born_twice says:

Thanks bro!

@Captainjko1968 says:

When priming the system, are you holding the start button in for 2 minutes or just pushing it and releasing, but leaving the power on for 2 minutes then shutting off?

@JuntWish says:

youre a life safer taking my truck to get serviced today one of the things they were gonna do is change the fuel filter but im now gonna do it instead. your saving me 350 plus dollars thank you so much ! happy new year !

@ronaldransom5778 says:

My fuel filter cap won’t budge. I’ve tried pipe wrench and grip pliers and it still won’t move

@therazorsedege says:

Any tips on how to get the housing off if it doesn't want to come loose?

@bodhiclay3254 says:

What is it you are using to clean the housing and fuel bowl with? Brake cleaner?

@thesandman775 says:

Dealer in my area tries to charge 200 after tax for this procedure… If you extrapolate that out to how many views your video has, you're saving people a LOT of money cumulatively. Thanks for the informative content; people like you are what make YouTube such a great platform.

@jimober3313 says:

I know this is an old post but, Do you have to relive fuel pressure before removing drain or Filter?

@georgewashington1414 says:

At 6:09 how do you turn the key on when it’s a push button start?

@martech360 says:

Anyone who believes the manufacturers recommended fluid & filter changers needs to pull their heads out of their as$! You need to cut everything they say in half. Those recommendations are just to get you through the warranty and that’s it.

@edwardzuniga-cr4ni says:

Do I hold start button for two minutes?

@humongousdingus7382 says:

I am looking at buying a truck with the 3.0 L diesel engine, would you have any recommendations on a new vs used?
Thanks

@AUav8r05 says:

Thank you worked great on my 23 Yukon 3.0

@gotaPhDyoumadbro says:

Recommended milage to change? I bought my truck private party, 21' w/53k and I went ahead and changed it here at 57500 miles & dash fuel filter life showed 7%. Forums I see a lot of conflicting info. Do you find GM service manual is to soon or to late on changing? (Obviously quality of fuel dictates this but assume its standard quality diesel). Trying to determine my interval. Note: I do still have some of the 5yr /100k power train warranty remaining till next June I believe is the month the truck was purchased. TYIA

@windy77011 says:

I have a 3.0L 2023 Silverado Diesel. Is it the same filter as the 6.6? $130 is the dealer price to replace. Crazy

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