In this video, I break down how to perform a Relative Compression Test using an oscilloscope. This fast, non-invasive diagnostic method lets you check engine health without removing spark plugs. You’ll learn how to set up the test, connect a current clamp, record the...
Secondary ignition diagnostics are often overlooked in modern vehicles due to coil-on-plug systems—but the waveform still tells a powerful story. In this video, secondary ignition waveforms are captured and analyzed using an oscilloscope to reveal what is actually...
Today we’re rebuilding the rear brake calipers on a DeLorean — a job that solves common issues such as dragging brakes, uneven pad wear, sticking pistons, and handbrake imbalance. The DeLorean’s rear calipers have some unique design quirks, including the integrated...
Learn practical lab-scope workflows you can use today. We reinforce the basics with real-world tests: checking primary ignition current with a low-amp probe, verifying an entire bank of coils via the common power feed, reading fuel-pump current through a fuse-loop...
Everyone’s talking about how bad the automotive industry is right now — low pay, burnout, lack of respect, and technicians leaving the trade. But that’s only half the story. In this video, I talk about what’s really going on in the automotive world — and why it’s not...
Automotive Lab Scope Basics | Understanding the uScope In this video, we walk through the fundamentals of using a lab scope (automotive oscilloscope) — what it does, how it works, and why it’s one of the most powerful diagnostic tools you can own. Using a signal...
Dont forget to check out our website - sixstarautomotive.com Is your DeLorean suffering from unreliable electrics, random stalling, or cooling fan problems? In this video, I install the K111168A Improved Relay Update Kit and show you exactly how to upgrade the...
In this video, I go in-depth on how the LOADpro Dynamic Test Leads work and how I pair them with the Power Probe for faster circuit testing. I build a simple circuit to demonstrate real-worldish conditions and show why a circuit can appear to have full voltage—but...
If your engine misfires, lacks power, or idles rough, your spark plugs might be trying to tell you something. In this video, we break down everything you need to know about spark plugs — how they work, what they look like when they fail, and how to choose the right one for your car.
Whether you’re a DIYer, technician, or someone trying to understand a repair quote, you’ll learn:
The anatomy of a spark plug and how it creates combustion
The critical role of heat range and why the wrong one can cause serious engine damage
How to identify common spark plug failures (carbon fouling, overheating, oil contamination, cracked insulators)
What misfires feel like and what your check engine light is really saying
When to replace your spark plugs (and how long they actually last)
Tips for proper installation, gapping, and torque
Why reading a used spark plug can be the best free diagnostic tool in your shop
We also cover how spark plug issues tie into fuel economy, engine performance, and long-term reliability. If you’ve ever wondered what that little part at the end of your ignition system really does — this is the video for you.