Experiencing Problems with my 2018 Chevy 5.3 Engine - Need Help!

Have you all checked your fuel injectors? I had issues with mine and cleaning them actually helped restore my engine’s performance and fuel efficiency!

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I think you’re onto something! I’ve been curious about injector cleaning, but how often should it be done?

I usually clean my fuel injectors every year or 30,000 miles, whichever comes first. Making sure they’re clean can really improve performance and efficiency!

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What about spark plugs? I heard faulty spark plugs can really drag down fuel efficiency. Any experiences with that?

Great point! I had mine replaced last month, and it made a significant difference in how smooth my engine runs now. Fuel efficiency improved too!

I had issues with my transmission that affected acceleration. After a fluid change and check, everything improved, and my fuel economy got better too.

That’s interesting! I’ll have to keep that in mind. I didn’t consider how transmission issues could indirectly affect fuel efficiency.

Some people say that using premium gas can actually improve the performance of the Chevy 5.3. Has anyone tried it?

I tried it for a month, and honestly, I didn’t notice a huge difference in performance or fuel efficiency. It might not be worth the extra money!

I once joked that my truck must be a gas guzzler in disguise, but I actually learned it was all about the driving habits. Smooth driving helps a lot!

Haha, I feel you! Sometimes I just can’t resist gunning it at stoplights, but I’m trying to be more gentle. I’ll let you know if it saves me some gas!

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Those of you who are having problems, have you checked for any error codes? Sometimes simple fixes show up through the onboard diagnostics.

That’s a solid tip! I’ll run a diagnostic test this weekend and see if anything comes up.

I totally understand your frustration with your 2018 Chevy 5.3 engine. There have been several recalls related to it. Make sure to check the VIN on the NHTSA website to see if yours is affected.

Thanks for the info! It’s a bummer that I’ve been dealing with issues. What were the recalls about?

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The main recall was for a potential engine failure due to faulty lifters. Most were resolved with a complete lifter replacement. Definitely check with your dealer for more detailed info!

That’s helpful! How do I check if my dealer is aware of any TSBs?

You can call them directly or visit the GM website. They usually have a list of technical service bulletins that may not be widely advertised.

Recalls are such a headache! My friend’s 2018 was affected, but they sorted it out with minimal downtime. Fingers crossed you get it resolved quickly!

It’s crazy to think how many people are affected by this. I’m wondering if there are other problems that aren’t recalled but people face?