Samantha Reed

I remember the first time my old pickup started running rough, and a shop quoted me $180 just to diagnose the engine. That’s when I bought my first compression tester, and 15 years later it’s still one of the most-used tools in my garage. If you’re searching for the best compression testers to diagnose engine … Read more

A good automotive oscilloscope turns a mystery voltage reading into a waveform you can inspect. I use one when a sensor reports a plausible number but the car still runs badly, or when a multimeter cannot show whether an injector is switching cleanly. This guide compares eight real options for car diagnostics. I focused on … Read more

If your engine burns oil, idles rough, or has a misfire you cannot chase down, a compression test only tells you that something is wrong. A leak down test tells you exactly where. After testing 8 models in our shop over the past three months and comparing notes with mechanics on Garage Journal and Reddit’s … Read more

When my truck refused to start on a cold morning, I hooked up a fuel pressure test kit and saved myself a $400 fuel pump I didn’t need to replace. That single diagnostic session sold me on keeping a tester in my shop permanently. After testing 10 of the top fuel pressure test kits against … Read more

If you have ever tried to dial in ignition timing on a classic car or a tuned small engine by guessing, you already know the frustration of a car that pings under load or idles rough no matter what you adjust. A good timing light solves that problem in seconds, and after spending weeks testing … Read more

Three years ago I dropped a wedding ring down a bathroom drain and spent four hours with a coat hanger before I found it. Had I owned one of the best inspection cameras on the market today, that disaster would have taken eight minutes. That’s the moment I stopped thinking of borescopes as specialty shop … Read more

Last summer I spent three days chasing a stubborn EVAP code on my 2012 Silverado that turned out to be a hairline crack in the gas tank vent line. Traditional bubble tests and brake-clean spray missed it completely, and the dealership wanted $180 just to confirm what I already suspected. That frustration pushed our team … Read more

Last winter, I went to start my truck after a two-week vacation and heard nothing but a sad click. The battery had been slowly dying without me noticing. After jumping it and driving home, I bought my first smart battery charger, and I have not had a dead battery since. That is exactly why I … Read more

Dead batteries cause more roadside headaches than almost anything else on four wheels, and the best smart battery chargers solve that problem before it starts. I spent 60 days rotating eight different models through three vehicles, two motorcycles, and a stubborn old lawn tractor to find out which ones actually deliver on the “smart” promise. … Read more

I learned the hard way that a dead battery does not care about your schedule. Three winters ago I walked out to my truck after a cold snap, turned the key, and got nothing but a click. A neighbor with jumper cables saved the morning, but it cost me an afternoon I did not have. … Read more