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Building Technicians From the Ground Up

Building Technicians From the Ground Up

Beyond the Wrench May 20, 2026 59 min
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About this episode

Leadership and mentorship are at the center of Beyond the Wrench’s conversation on building technicians “from the ground up.” Todd Ainsworth and the guest trace a path from early shop exposure and a four-year apprenticeship to 25 years as a professional tech and eventually shop ownership. The hosts connect technician development to profitability, training structure, and shop culture—arguing that modern work is highly technical, safety-critical, and requires proper documentation and inspections.

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Technical Too Afraid to Ask
Term

ASE

ASE is a well-known automotive certification program. It’s a way to show a mechanic has proven knowledge on certain types of car repairs.

Term

fuel injection

"and when you were coming in fuel injection was all the rage, right? And you're you're trying you're kind of transitioning from carburetor to fuel injection."

Fuel injection is how a car sends gas into the engine. Instead of using a carburetor, it uses computer-controlled parts to deliver the right amount of fuel.

Term

carburetor

"And you're you're trying you're kind of transitioning from carburetor to fuel injection. And now, I mean, we're driving advanced computers like"

A carburetor is an older system that mixes gas and air for the engine. Many cars moved away from it because newer systems are controlled by computers.

Term

advanced computers

"And now, I mean, we're driving advanced computers like there's so much that has changed in that period of time."

In modern vehicles, “advanced computers” refers to the engine control units and other electronic modules that manage engine operation. As cars become more software-driven, technicians increasingly need scan tools and diagnostic skills to interpret sensor data and control strategies.

Term

can bus network problems

"It's not, we're, we're, we're looking at can bus network problems and very technical things."

Modern cars have computers that need to “talk” to each other. CAN bus is that communication system, and problems with it can make the car act strangely or throw confusing warning lights.

Term

exhaust manifolds

"…busting our knuckles and burning our fingers on exhaust manifolds…"

Exhaust manifolds are parts near the engine that collect exhaust gases. They get very hot, so working around them can be painful if you touch the wrong spot.

Term

hoist

"This lady brings her car in and they put it on the hoist."

A hoist is the shop lift that raises the car. It lets the mechanic look at the underside and suspension parts safely.

Part

ball joint

"The ball joint was completely out of the lower control arm, like completely fell out and it looked brand new."

A ball joint is a small joint in the suspension that helps the wheel move and steer smoothly. If it breaks or comes apart, the wheel can wobble or shift, which can make the car shake a lot and drive poorly.

Part

lower control arm

"The ball joint was completely out of the lower control arm, like completely fell out and it looked brand new."

The lower control arm is a suspension link that holds the wheel in the right position. It connects to other parts like the ball joint—if that connection fails, the wheel can move incorrectly and the car can shake or feel unsafe.

Concept

vehicle inspections

"We're trying to help keep you safe. We're trying to make sure your vehicle is reliable. That's why we do inspections."

A vehicle inspection is when a mechanic checks the car for problems that could be unsafe. The goal is to catch issues early so they don’t turn into bigger failures later.

Term

shop ownership

"another thing that comes with shop ownership and needing to be profitable is you need to hire the people who will take the time to do it, right?"

Shop ownership here means the repair business is accountable for the work it does on customers’ cars. If something is done incorrectly, the shop can be held responsible—because it affects safety.

Concept

liability

"But we have a liability. Oh, when we take the shop, the car into our shop, we're accepting liability and we literally sometimes have people's lives in our hands."

Liability means responsibility for what happens because of the work done. If a safety-critical part is installed poorly and someone gets hurt, the shop can be held responsible.

Concept

safety-critical repair

"they don't need to think about whether their car is going to fall fall apart and that's going to be our job. But it's not, it's not any, any laughing matter when we talk about safety because as we are responsible for our clients safety"

A safety-critical repair is work where mistakes can directly affect vehicle safety, such as steering and suspension components. The segment emphasizes that technicians and shops must ensure correct installation so customers don’t have to worry about the car failing while driving.

Car

1972 Pontiac Le Mans

"What was your first car? [3263.4s] First car was a 1972 Pontiac Le Mans. [3267.8s] Really? [3269.0s] Which I still own."

A 1972 Pontiac Le Mans is an older American car from the muscle-car era. The host mentions it because it was the guest’s first car and they’ve owned it for a long time.

Car

Pontiac Le Mans

"What was your first car? First car was a 1972 Pontiac Le Mans. Really?"

This is a classic Pontiac from the early 1970s that’s based on the LeMans, with the “GTO” trim meaning it was meant to be a faster, more performance-oriented version. It’s also a convertible, so the roof can be opened for driving in good weather. People mention it because it’s a well-known type of older muscle car and a standout first car.

Car

68 GTO 400

"and so, you know, I built a took your original engine out of [3289.5s] it and put a and I built a 68 GTO 400 for it with with a bunch [3296.2s] of modifications and a different cam."

A “GTO 400” is a Pontiac muscle-car V8 engine (the 400) that people often swap into other cars. In the story, the guest replaced their original engine with a stronger, modified version and changed the camshaft.

Part

cam

"I built a 68 GTO 400 for it with with a bunch [3296.2s] of modifications and a different cam. [3298.0s] You know, back in those days, I thought I was going to be a"

A cam (camshaft) controls when the engine’s valves open and close, which strongly affects power and how the engine feels across the RPM range. Changing the cam is a common modification when building a muscle-car engine for different performance characteristics.

Concept

hot rods

"I thought I was going to be building hot rods as a work you [3304.1s] but that's not that's not eventually what happened though."

Hot rodding is when people modify older cars to improve performance or style. The guest is saying they thought they’d end up building cars like that as a career.

Concept

dirt circle tracks

"I thought I'd be racing cars coming out of high school and I [3317.3s] did in high school race on like dirt circle tracks and over [3324.5s] time, you know, you just kind of run out of time and and and"

Dirt circle tracks are race tracks where cars go around in an oval on dirt instead of pavement. The speaker is using it to describe the kind of racing they did early on.

2 cars featured

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