Here’s What Happens if You Don’t Change the Fuel Filter in Your Car

Why you should change your fuel filter. Here’s what happens if you don’t change the fuel filter in your car, DYI with Scotty Kilmer. How to replace fuel filter. When should I change my fuel filter? How often should I change my fuel filter? Reasons why you should change your fuel filter. Fuel filter replacement. Everything you need to know about fuel filters. You never want to keep a clogged fuel filter in your car. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.

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Related Video ▶ How to Tell if a Fuel Pump is Bad in Your Car:

⬇Things used in this video:
1. Common Sense

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This is the people's automotive channel! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. Or enter your own DIY car fix to compete in the best fix of the week contest every Thursday. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.

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Scotty on Social:

[AccordionJoe]

The problem with having the fuel filter changed is that you have to trust the mechanic or service tech at the dealer to do it right. The danger with regular maintenance is that often the car comes out of the shop worse than when it went in.

[christophermarshall]

I'm with you on this one!! I helped one guy out who's car had a blocked secondary filter. This car is a Mercedes 300D turbo diesel. Poor guy spent over $2k having the injection pump replaced in a modern workshop, yet they did not find, or fix the problem. His car then stopped on the side of a major highway. I pulled over to help him, & I replaced this little filter. He was mobile in a few minutes. The cost of this little filter was less than $10.

[Sseltraeh]

I've been keeping the filter in my trunk and delaying the change for few months now and you just scared me to pull my head out of my bottom and do it ASAP, thank you, Scotty.

[mattwalls]

Thanks for the help over the years Scotty.

[SteveAubrey]

I'm getting a 2013 Ford F350 SD diesel, my brother is giving it too me. Your videos have given me a list of things I want to check and stay on top of when I get the truck. I fly general aviation airplanes, Cessnas&Pipers. I love old WW2 airplanes and go to airshows all the time. The combat life expectancy of these aircraft in the 1940s was measured in combat hours. The examples we see flying today are 75 to 80 years old. If you had told the engineers who designed these planes that they would last this long they'd think you were cracked. My point in all that is, properly maintained, a machine will last forever. I want to maintain my (new to me) truck!
Thanks for another great video Scotty!

[PaulC]

I'm 16 years in this trade and have only ever changed petrol fuel filters on my own cars, it's just not done, I don't think I've ever seen one changed in any garage I've worked in, however we do diesel ones all the time, great piece of knowledge from this video, especially about running lean codes. Thanks Scotty, always enjoy your content 👍

[silvergrizzly]

Mr. Scotty, I just love how you explain the mechanics of cars. So easily understood, Thank You Sir!👍👍

[mcgyverb]

Auto manufacturers are using the term lifetime, knowing it’s a damn lie.

[bryanoliver]

Great coverage, in 1982 a friend, Joe, his girlfriend poured a bag of sugar into his trucks gas tank . Joe bought a bag of brass filters, every time truck stop running, he change little filter then all be good, down the road until sugar plugged the next little filter . It took around a week to clear sugar from tank, his exhaust smelled like Frosted Flakes .

[MartijnLely]

Dammit Scotty! Every time I think I finally replaced and maintained every single part of my car, you come up with something new...

There goes my weekend. ;)

[iliaslamari]

About 2 years ago my father bought a Citroën Xsara break (French station wagon). It drove and ran fine, but after half a year the car started to smoke and ran on 3 cylinders. Okay, no problem, we thought the ignition coil was broken and replaced it. It didn't work. So we brought it to a Citroën dealer for a scan. (We don't have fancy scan tools) And they found 1 code: "no ignition in cylinder 3" So we replaced the injector, but that did not help either. Ad that point we were really pist off and didn't know what to do. Once under the car we saw a filter that was a little bit rusty on the outside. We replaced it and the problem was solved. It turned out to be the original fuel filter from 2004 and after we saw it open, it was completely black from the rust and junk. That was a wise lesson. Always replace a fuel filter with the engine oli when you buy a cheap second-hand car...

[jorgeromero]

My car is fine 99% of the time, I just love watching Scotty's videos haha

[stanroberts]

Just changed my fuel filter a week ago at 271, 000 miles, and still going strong.

[roadstar]

Scotty...you hit it on the head here...i tested my fuel pressure and its way up at 60psi...but when i drive the volume is not enough and it bucks, hesitates and has no power and want to die...idles fine... tomorrow i am installing a new fuel filter..i am pretty sure this will solve my issues...i did everything else including new timing chain, cap rotor, maf etc...thanks scotty

[TheBarbarian]

Hey Scotty, Like everyone else who visits your channel..I can't thank you enough for sharing your knowledge and and wisdom! I really do like how you give a full explination of what you are looking at or working on. You're awesome mate! God bless you!

[ClusterHeadSurvivor]

Many GMs have fuel filters in the tank and GM recommends a very highly concentrated fuel system cleaner you pour into the tank. It cleans the filter well. Any sediment that gets on the float and filter it removes. Smarter to pour in the tank once or twice a year is better than having to have your tank dropped !! the GM cleaner is so strong we even had no starts come in and poured this in and it started ! Excellent video Scott....every vehicle owner should watch. Perhaps do one on a Diesel !

[bkblindside]

It's actually ridiculous how much I like Scotty's videos..

[LightsaberGoBrrrrrr]

With the help of one of your old fuel filter videos, I changed that along with the air filter/spark plugs, cleaned MAF and throttle body, flushed the brake fluid from master cylinder etc. in my '98 impreza. You have allowed me to feel like I'm actually a real mechanic which is not true but it's nice to feel like that 😂 Thank you Scotty, another great video

[WHOTEEWHO]

Love the videos Scotty. Thank you so much! Been watching for years