As we close the book on the OnAllCylinders 10 year anniversary celebration, we’re taking a final look back at a decade’s worth of gearhead news, featured vehicles, and tech posts and picking our most popular or noteworthy stories. We’ll countdown each list, and you can scan a quick summary then click each post’s title to read the whole thing.

Today, we’ll look at tech articles.

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25. A Quick Guide to Vacuum Gauge Readings

Reading your intake manifold vacuum with good vacuum gauge can tell you a lot about the health of your engine (and be an invaluable troubleshooting method too). We made a handy infographic to help you get started.

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24. Basic Tips, Tricks & Tools for Wiring Your Vehicle

Automotive wiring can scare off a lot of gearheads, preventing them from doing a potentially easy repair or cool upgrade. We set out to de-mystify the topic with a basic automotive 101-style article on some key electrical basics.

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23. How to Diagnose Automotive Electrical Ground Issues

Ever had to chase down an electrical gremlin in your project? Then you already know how vital good grounding is to a vehicle’s electrical system. Here’s a good article to help you spot and fix potential ground problems.

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22. A Guide to Tuning Your Four-Link Suspension System

We sought the help of expert race car builder Jerry Bickel to put together an article on how to set up a four-link suspension—the right way. It’s a good read if you’re running a four-link in your race car.

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21. A Quick Guide to Identifying Common Rear Axles

You don’t want to waste a lot of time when you’re rolling around on gravel or concrete trying to figure out which rear end you’re looking at. We’ve got a handy infographic that’ll give you an easy, visual guide to a positive axle ID.

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20. LQ9 Engine Spec Guide

After starting this blog way back in 2012, we quickly found out that you folks really like your engine spec guides. Turns out, we really like making them too. Here’s the first one to crack our top 25, the 6.0L LS/Vortec LQ9.

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19. A Quick Guide to Diagnosing 10 Common Steering Issues

Who would’ve thought steering would be so important? Whether you’ve got a work truck or hot rod, we run down some of the typical steering problems you may come across and, more importantly, how you can fix them.

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18. 9 Cooling System Myths & Mistakes (& Why to Avoid Them)

Cooling systems are often the most misunderstood aspect of an engine build—performance or otherwise. This article walks though some misconceptions about engine cooling and gives you some cooling efficiency tips too.

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17. What’s the Difference Between a Ford 351 Windsor, Cleveland, or Modified?

Someone in Dearborn must’ve liked the number 351, because it became a popular displacement across three distinct engine families. So how do you know which is which? This post is packed with key details that’ll show you.

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16. A Quick Guide to Upgrading Your Ford EcoBoost Engine

Ford’s stuffing EcoBoost engines into everything short of golf carts these days, which means that there are plenty of folks looking to get the most performance from these powerplants. This article is a good place to learn how.

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15. 7 Common Paint Mistakes—and How to Avoid (or Fix) Them

Painting is equal parts chemistry, technique, and art—so don’t feel bad if you’ve made a mistake or two on your last project. The good news is, many mistakes are preventable and/or fixable. Read this and we’ll show you.

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14. LS Spotter’s Guide, Part 1: Matching the Vehicle to the Engine

It’s fair to say that the LS has officially usurped the once-ubiquitous small block Chevy as the go-to swap engine. So we put together a handful of guides to show scavengers and swappers how to find them. This is the first.

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13. A Quick Guide to Diagnosing Common Engine Noises

From rod knock to valve chatter, your engine is a mechanical symphony. Some of it is normal, some of it…is very much not normal. We help you sort the good from the “oh-no!” in this intuitive guide.

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12. How to Identify an LS Engine

Given how popular the LS engine family is, there’s good chance you may find yourself staring at one under the hood of your new project car or on a pallet in your shop. Here’s how to tell which specific LS engine it is.

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11. Solving Common Aftermarket Starter Problems

What happens when your starter, you know, doesn’t start? Or worse yet, it sounds like you just threw a bunch of marbles into a desk fan? Here’s a 101 troubleshooting guide for starter motors to answer those questions.

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10. Engine Break-In Guide: 10 Tips to Help Properly Break in Your Engine

The first 15 minutes of a newly-built engine’s life are the most critical. Without the proper prep, we’ve seen bearings spin, cam lobes distort, and valvetrain parts seize. These 10 tips can ensure as good initial startup.

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9. Five Things You Should Know Before Using a High-Output Alternator

High-output alternators can solve a lot of electrical problems—but there’s still plenty to know before hanging one off the front of your engine. Learn about things like electrical load and amp draw in this quick post.

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8. How to Read Your Spark Plugs

Used spark plugs can give you a window into your engine’s operation. By learning how to examine the electrodes, you can check your fuel mix, ignition timing, and valvetrain health. This article’s got plenty of pictures to help.

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7. LQ4 Engine Spec Guide

After the LQ9 appeared at number 20, now we’re going to really start hitting our various LS engine guides. First one up in the top 10 here is the LQ4, another 6.0L LS/Vortec engine commonly found in GMC/Chevy trucks.

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6. LM7 5.3L Engine Upgrade Guide

Distinct from our popular engine spec guides, we created upgrade guides for each motor too, laying out a power-building recipe that you can follow from mild to yee-haw. Check out this one for the LM7 LS.

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5. LM7 5.3L Vortec 5300 Engine Spec Guide

Speaking of LM7, here’s its complementing engine spec guide, chock full of juicy details on its cylinder heads, camshaft, rotating assembly, valvetrain, and a whole lot more. Got an LM7? Bookmark this page.

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4. LQ4/LQ9 Engine Upgrade Guide

Here’s another of our fan-favorite LS engine upgrade guides, this time for the venerable 6.0L iron block LS/Vortec truck engine that’s popular with the big-power hotrodding and racing crowd.

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3. How to Diagnose Common Charging System Problems

We’ve all heard that dreadful click!-click! from the starter motor caused by a dead battery. On the flipside, ever had your lights get too bright while revving your engine? All potential charging system woes. Read more about it here.

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2. How to Delete/Disable Active Fuel Management (AFM) on GM Engines

AFM is a smart way for fuel-conscious drivers to stretch their MPG numbers. But it can cause some headaches for the performance and racing folks, so it’s no surprise that a story on how to disable AFM is number two on our list.

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1. A Quick Guide to Diagnosing Differential & Driveline Noises

Whirrs, whines, clunks, and groans…your car or truck can make a ton of weird noises. And if you know what to listen for, it could save you from a potentially serious repair. Train your ear with this handy guide.

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There you have it, or top tech stories of the first 10 years of OnAllCylinders. Thank you for your readership over the years—and we hope you stick around, because we’re just getting fired up.