Engine Problems

Tips on Duramax Fuel Filter

Tips on Duramax Fuel Filter
Written by Autofot
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Tips on Duramax fuel filter; With a little bit of research and some basic mechanical skills, you can change your own fuel filter on your Duramax diesel engine. You can save yourself quite a bit of money doing this, plus you’ll know exactly what type of filter you need and when it’s time to replace it. In this article we’ll cover everything from safety precautions to bleeding the system after installation to make sure air pockets don’t form in your fuel line.

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Changing Your Duramax Fuel Filter

  • Locate the fuel filter. The location of the fuel filter may vary depending on your vehicle, but it is usually located in an easy-to-reach area near the engine bay.
  • Remove the old filter. Unscrew and remove the old fuel filter using a wrench or crescent wrench (if applicable). Be careful not to spill any liquid on yourself or your vehicle, as it can damage paint and cause rusting if left there too long!
  • Install a new Duramax Fuel Filter into its place, being sure to screw it in securely with a socket wrench so that there are no leaks when you start up your truck again later today!
  • Check for any air inside of lines by turning off engine for about 20 seconds then restarting – this helps get rid of any trapped gases inside line which could lead to carburetor flooding issues later down road (this will happen especially if you have an older model without check valve systems installed). If you still see bubbles after trying this method multiple times then chances are something else might be wrong somewhere else inside engine compartment so make sure nothing else has been bumped around during installation process before calling out professional mechanic nearby…

Tips For Changing Your Duramax Fuel Filter

Before you begin, make sure to disconnect the battery.

  • Do not smoke around a diesel engine; this includes e-cigarettes and other vaping equipment. The fuel filter is located under the driver side of your truck, so you may want to raise it up on jack stands before removing it.
  • Using a fuel filter wrench can damage your fuel lines and cause leaks in them. Instead, use an oil filter wrench to remove your Duramax diesel’s new or old fuel filter by hand. It should come out easily so long as there’s no debris clogging up the line itself (which would mean you need more serious repair work done). Don’t forget to check behind the old one for any left over bits!
  • Make sure to change out both crush washers when installing a new Duramax diesel fuel filter into place; these small rubber pieces help seal everything together securely so that nothing leaks or pops off unexpectedly during use down in Colorado Springs winters when temperatures drop quickly outside without warning sometimes leaving us stranded until spring arrives back again next year!

Bleeding The Fuel Filter

Fuel Filter Basics

Bleeding the fuel filter is a common maintenance task that most diesel truck owners must perform on their trucks at some point. When you bleed the fuel filter, you are removing air bubbles from inside of it so that they don’t get into your engine’s fuel system and cause problems. The purpose of bleeding a Duramax diesel truck’s fuel filter is to ensure that it does not become plugged with debris or corrosion over time, which could lead to poor performance and other issues such as reduced power or stalling after driving for extended periods of time.

You can bleed your Duramax Diesel Truck’s Fuel Filter by following these steps:

  • Locate the bleeder screw on top of your Duramax Diesel Fuel Filter and loosen it by turning counterclockwise until there is no resistance left when turning it back one quarter turn after loosening;
  • Place an absorbent rag under each end cap (one on top and one on bottom) so that any drips will go into them instead of getting on anything else like paint;
  • Move both caps away from each other slightly while still keeping them attached together by hand before attaching them tightly again;
  • Open up valve slowly until fluid starts coming out evenly between both ends instead then close valve again quickly–this should take around 30 seconds total time; if no fluid comes out when opening valve then try opening/closing several times before trying again later since sometimes air takes longer than usual due to being trapped inside filter housing;

Air Pockets In The Fuel Line

If you’re hearing a loud “whoosh” noise while driving, it’s a good sign that air is getting into the system. Air pockets in the fuel line can cause your engine to stall or run dry on gas. If this happens, pull over immediately and check for leaks. If you find none, turn off the engine and restart it after about 15 minutes to clear out any remaining air pockets in the fuel line.

Safety Precautions For Changing The Filter

Fuel is a flammable chemical, and in the case of diesel engines, it’s even more so. It’s important to be safe when working on your fuel filter.

  • Doesn’t smoke while working on the fuel filter or otherwise near it. The slightest spark could ignite flammable gas and cause an explosion.
  • Don’t work on the filter when the engine is running, something might go wrong that could injure you or damage your car.
  • If you aren’t sure what you’re doing, don’t start changing things yet! You should get help from someone who knows what they’re doing before trying anything yourself (and make sure they know what they’re doing too).
  • Wear safety equipment like gloves and glasses when handling chemicals or other hazardous materials like gasoline; if something spills on them, they can prevent serious injury by keeping those substances away from your skin. Read Also: How Much Fuel Injector Cleaner to Use

Don’t Get Air Into The System

A few common things to avoid when working on the fuel system:

  • Do not smoke while working on your truck. Nicotine and tobacco smoke can get into the engine oil, which will create sludge. Sludgy oil will clog up your fuel filter, causing it to fail.
  • Do not use a torch to clean dirt off of the filter housing or other areas of the truck’s engine compartment (unless you have an electric one). Even if you wear safety gear, there is still a chance that some flames could escape from your hands and reach nearby fuel lines or fill up any exposed gaps in your gloves with fireproof material. This could cause an explosion!
  • Avoid using power tools around gasoline–this includes drills as well as things like grinders and saws that could cut through plastic containers holding flammable liquids without even realizing it was there until it was too late!

No Smoking Near A Diesel Engine

If you are a smoker, this may be the most important point for you: no smoking near diesel engines. Why? It is highly flammable, and even one stray spark could start a fire. Carbon monoxide poisoning is another concern with smoking near diesel engines. It’s not just bad for your health; it can also cause death! Finally, cancer, it’s well known that smokers have a higher risk of developing cancer than non-smokers.

You can change your own fuel filter, and it will save you a lot of money.


I hope these tips will help you to change your own fuel filter. You can save a lot of money by doing it yourself, and the job is not too difficult. But first, make sure that you have all the necessary tools and parts before attempting this procedure. Good luck!


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About the author


Autofot is a website that blogs on the importance of taking good care of our automobiles. Little things that are ignored matter the most, hence we try to educate car owners and other different auto owners on how to go about taking care of their cars with little or no cost.

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