RickMN

If your brake pedal pulses or your car shakes when braking, chances are you’ve been told it’s because of “warped rotors.” That’s one of the most common myths in auto repair—and it’s flat-out wrong. Brake rotors don’t warp under normal driving conditions. The real culprit behind brake pedal pulsation is almost always uneven pad deposits and disc thickness variation. In my latest article, I break down exactly what causes brake pedal pulsation in this article https://ricksfreeautorepairadvice.com/common-causes-of-brake-pulsation-and-judder/and explain why “warped brake rotors” don’t exist, so you’l

If you're comparing scan tools for serious DIY or professional diagnostics, check out my in-depth review of the Innova 5610 versus the Topdon ArtiDiag900 Lite. I put both tools through real-world tests—reading trouble codes, accessing live data, performing active tests, and more—to see how they stack up in features, performance, and value. Whether you're a weekend mechanic or a tech in the bay, this side-by-side comparison cuts through the marketing hype and gives you the pros, cons, and critical differences that matter most when choosing your next diagnostic tool. Don’t buy until you read

If your engine is making unsettling noises, it’s crucial to know whether you’re dealing with rod knock or valve train clatter—two very different problems that can have major consequences if ignored. In our latest article, we break down the key differences between rod knock and valve train clatter, explain what causes each, and give you expert tips on how to diagnose which one you’re hearing. https://ricksfreeautorepairadvice.com/what-is-rod-knock-and-what-causes-it/

If you’re thinking about saving money by trying to flush late model microchannel AC condenser passages after a compressor failure, stop right there. In my latest article, I explain exactly why modern AC systems don’t work that way anymore—and how trying to flush AC condenser tubes will almost always lead to another costly compressor failure. I’ll show you why every time I replace AC compressor components, I also replace the condenser and receiver/drier to protect the system from hidden debris. Don’t waste your time or your money—learn the right way to replace AC compressor parts and keep your car’s air conditioning running strong for years to come. [https://ricksfreeautorepairadvice.com/why

Tired of sweating it out and paying sky-high repair bills for your car’s AC problems? In my latest article, I’ll show you how to diagnose your car’s AC system yourself—no mechanic required. You’ll learn step-by-step troubleshooting tips to pinpoint exactly why your AC isn’t blowing cold, saving you hundreds of dollars in unnecessary shop fees. Whether it’s low refrigerant, a failing compressor, or an electrical issue, I’ll help you find the problem so you can fix it smart. Don’t waste another summer day without cool air—read my expert guide and take control of your car’s comfort today! These are the same test steps any professional would use. [https://ricksfreeautorepairadvice.com/step-by-st

So I came here for expert advice. Obviously I'd like one that starts and lasts. So it seems it's down to Toro or Honda. Any tips on the brands or which models? I'm willing to spend the $$$ if the machine is worth it

So I came here for expert advice. Obviously I'd like one that starts and lasts. So it seems it's down to Toro or Honda. Any tips on the brands or which models? I'm willing to spend the $$$ if the machine is worth it.

If you've ever been hit with a costly repair bill after your check engine light revealed a P0420 or P0430 code, you’re not alone. Catalytic converter failure is one of the most misunderstood and expensive problems drivers face. In this must-read article, I break down exactly what causes a catalytic converter to fail—from engine misfires caused by worn out spark plugs or clogged or leaking fuel injectors, to contamination from internal coolant leaks or improper use or RTV sealants, to plain old impact damage. More importantly, I’ll give you expert tips on how to prevent converter damage in the first p

This article on engine coolant peels back the cover on everything you thought you knew about antifreeze and engine coolants. Get ready to debunk the five most pervasive myths—from thinking all coolants are interchangeable to believing “long-life” formulas last forever. Discover exactly what goes into modern coolant blends, how each additive protects your engine, and why extending service intervals can cost far more than regular coolant changes.

Does premium gas get you more power? Does it have more detergent? Is it always ethanol free? Is pre-ignition just another phrase for knock or detonation? What happens if you fill your tank with regular fuel when premium is recommended? Can it really damage your engine. Read this article to get the facts about regular versus premium gas

I'm not a fan of start/stop technology. I don't use it in my Subaru. But I bristle every time I hear someone say that it burns up your starter much faster. No, it doesn't. The starters in these engines are your Father's starter. They're redesigned from the ground up. They are heavy duty, use different bearings, brushes, and solenoid designs. They run at much slower speeds and they have much better current management to reduce damage from low voltage cranking. Complain about start/stop all you want, I won't fight you on that. But condemn the system because of the starter. See how different they are in [this article. ](https://ricksfreeautorepairadvice.com/start-stop-starter-the-truth-about-lo

Want to know what really runs your car? It’s not just the engine—it’s the car computer. In this article, I break down exactly how a car computer works, the critical sensors it monitors, and how it uses real-time data to calculate the optimal air/fuel mixture for maximum performance and efficiency. I also explain how the system detects problems and sets OBDII trouble codes, so you can stop guessing and start fixing. Whether you're a DIY mechanic or just curious about what’s going on under the hood, this guide will help you understand the powerful role the automotive computer plays in every mile you drive.

Fuel System Cleaners aren't snake oil, but the manufacturers do tend to exaggerate the claims. It's those exaggerations that cause people to claim they're all worthless. That's not true. Some of the newer chemistries do a pretty good job of removing carbon deposits from fuel injectors and combustion chambers. However, some of the older, less expensive solvent-based chemistries are weaker and don't clean nearly as well. They're better at preventing the deposits from forming. This article breaks down the three main types of fuel system cleaning chemistries, explains how each one works, and where each type excel

It's the worst sound you can hear when you're in a hurry and need to get someplace. You turn the key and hear either a single click or rapid clicking, and your engine won't crank or start. Most of the time it's caused by either a bad connection at the battery terminals or a dead battery. But what's causing that machine gun noise? This article explains exactly what's going on and how you can fix it.

https://preview.redd.it/ee9ehwd0cc3f1.jpg?width=332&format=pjpg&auto=webp&s=3e6e2ef437f72bee201d4a8be3f78c84111e301b

It's optically impossible for retrofit LED bulbs to work in either a reflector or projector style headlight that was designed for halogen bulbs. It's all about light optics. The light source on an LED bulb is a different shape than a filament; flat versus cylindrical, it's in a different location, and it projects like in a 270° arc versus 360°. This article shows the physics behind the claim that retrofit LED bulbs can possibly work in a halogen headlight.