You Don’t Know What You’re Worth (Until You’re Wrong) | Jeremiah Hiatt

A “lube tech” is an entry-level shop role focused on routine maintenance like oil changes, lubrication, and basic inspections. It’s often where people learn shop workflow and build foundational mechanical skills before moving into heavier diagnostics and repairs.

Ford is a major automaker with a large dealer and service network, so working at a Ford dealership often means exposure to common Ford maintenance and repair procedures. In the transcript, it’s referenced as part of the dealership where the guest started as a lube tech.

Dodge (a brand under Stellantis) is known for trucks and performance-oriented models, and Dodge dealerships typically service a wide range of vehicles. Here it’s mentioned alongside Ford as part of the dealership where the guest began working.

“Diesel technology” refers to training focused on diesel engines and systems, which differ from gasoline engines in fuel delivery, combustion, and maintenance practices. The guest’s VO-tech program is described as doing diesel technology, which explains their later path into truck and wheeled-vehicle work.

“VO tech” is shorthand for vocational-technical education, typically a hands-on program that prepares students for skilled trades. In this context, it’s the school the guest attended for diesel technology before moving into truck-shop and mechanic work.

A “federal tech” in this transcript refers to a government-employed maintenance/repair technician role. The guest describes being hired as a wheeled vehicle mechanic after applying for government jobs, which is a distinct career track from private shop work.

A “wheeled vehicle mechanic” is a technician who maintains and repairs vehicles that use wheels rather than tracks, often including military or specialized fleet vehicles. The guest’s role is described as maintaining “wheeled vehicle” equipment for about 10 years, which frames their experience and later career decisions.

“Scan tools” are diagnostic computers used to read a vehicle’s onboard systems. They pull trouble codes and live data from the engine and other modules, which makes modern repairs faster and more accurate.

“Immobilization” here sounds like using downtime or restrictions as a way to step away from work and recoup money. In automotive contexts, immobilization can also mean disabling a vehicle (or preventing it from being used) for safety, legal, or repair reasons.

Roll pins are cylindrical metal pins used to locate and secure components. They’re common in mechanical assemblies and are often removed/installed with punches and a hammer, which is why the speaker references them when describing armament repair work.

The Bradley fighting vehicle is a U.S. Army armored vehicle that uses tracks instead of wheels. Mentioning it signals the speaker moved from general wheeled mechanical work into maintaining a tracked military platform, which changes how powertrain and suspension systems are serviced.

A “wheeled mechanic” typically refers to working on vehicles that use wheels rather than tracks, like trucks and cars. The transcript contrasts this with tracked vehicle maintenance, which usually involves different suspension, drivetrain, and wear items.

The segment focuses on “comeback” work: when a repair is done, but the same symptom returns later. The host ties it to technician mindset (imposter syndrome/second-guessing) and to modern diagnostics where multiple faults can be present, with one issue masking others until it worsens.

“RAM” here refers to a RAM pickup truck the host worked on. In modern shop talk, RAM is commonly used to mean a Dodge/RAM brand truck, and it’s relevant because customer comeback diagnostics often depend on the specific engine and emissions system used in that model year.

The “check engine light” is the dashboard indicator that the vehicle’s powertrain control module (ECU) has detected a fault. In the segment, it’s used as a key moment when a previously corrected issue evolves into a detectable problem that triggers stored or active trouble codes.

An “ignition misfire” means the engine doesn’t burn the air-fuel mixture in one or more cylinders as intended. The host notes that misfire types (ignition vs valve) can feel different to a technician, but customers still experience it as “a miss,” which complicates diagnosis and comeback calls.

A “coil” in this context is part of the ignition system—often an ignition coil that helps generate the spark for a cylinder. Misfire diagnostics can involve checking whether a coil correction actually resolves the root cause, or whether another component is failing later.

“Camshaft load” refers to how hard the camshaft and its valvetrain components are being worked under operating conditions. The host describes a scenario where a misfire correction happens first, but later the camshaft load increases enough to reveal wear or a mechanical issue (often triggering a check-engine light).

A “mass airflow problem” refers to faults in the sensor that measures how much air the engine is ingesting. The host describes a diagnostic rabbit hole where replacing a “Ford mass airflow” led to new codes, illustrating how sensor/airflow issues can cascade into confusing fault patterns.

The host describes a “ghost” of problems that weren’t obvious earlier but appear later as conditions change. This concept aligns with how ECU logic, intermittent failures, and fault masking can delay when a code or symptom becomes detectable.

“Trouble codes” are diagnostic fault codes stored by the vehicle’s ECU when it detects abnormal behavior. The host notes that replacing a mass airflow sensor can generate additional codes, which can mislead the repair path if you don’t interpret them in context.

A “connector” refers to the electrical plug and wiring interface between sensors/actuators. The host mentions a fluid leak issue on a connector, which can cause intermittent electrical faults, sensor errors, and misleading diagnostic results.

The host contrasts fleet work with retail service, noting that fleet vehicles are seen repeatedly and often have more consistent maintenance/monitoring. That affects diagnosis because patterns are easier to spot when you’re familiar with the same vehicle showing up over time.

An oil change is routine maintenance where old engine oil is drained and replaced with fresh oil (often with a new filter). It helps keep the engine lubricated and reduces wear, especially for equipment that runs hard seasonally.

The hosts emphasize that a good operator can prevent unexpected failures by noticing symptoms early and performing basic checks (like fluid levels and overheating awareness). This reduces downtime because issues are caught before they escalate.

A “circle check” is a pre-operation inspection where the operator walks around the equipment to look for obvious issues (leaks, loose parts, damage) before using it. It’s meant to catch problems early, but the transcript highlights that paperwork can be done without the actual inspection.

A grease nipple (zerk fitting) is a small fitting on a component that allows lubrication to be pumped into bearings or joints. If the grease nipple won’t take grease, it can indicate a clogged passage, worn internal parts, or a failed fitting.

A fleet manager oversees maintenance decisions and scheduling across multiple vehicles or pieces of equipment. The transcript describes how the fleet manager may decide whether repairs are authorized, and how records/logbooks are later used to verify what was actually reported.

The Cadillac Fleetwood is a large, luxury full-size car that’s known for its comfort and traditional, long-wheelbase styling. It often comes up in older-car discussions because its systems and ownership experience can vary a lot depending on how it was maintained and configured. The podcast reference to “Fleetwood” and “fleet manager” suggests the conversation may be about managing or maintaining a Fleetwood in a fleet or service context.

A tractor is farm equipment used for pulling implements and doing field work. Here it’s central to the story because the speaker describes how different people (family vs hired hands) operate tractors aggressively, leading to mechanical failures.

Haying season is the period when farmers cut, dry, and bale hay—typically a busy time requiring lots of equipment uptime. The speaker notes that during haying season, maintenance is deprioritized, which can delay repairs until later.

This is a concept about deferred maintenance: when budgets and schedules are tight, repairs get postponed until equipment fails. The episode ties it to seasonal farming cycles, where haying and selling livestock take priority over upkeep.

A starter is the electric motor that cranks an engine to get it running. In roadside/service-truck contexts, it’s a key “must-have” part, but you can’t stock every possible component for every machine.

A mobile service truck is a field-repair setup where a technician carries tools and parts to fix equipment on-site rather than sending it to a shop. The segment focuses on how stocking strategy and pricing (including after-hours rates) affect whether the business is sustainable.

Electrical components include things like fuses, wiring, and other parts that handle power distribution and signals. The speaker emphasizes that their truck is stocked mainly for electrical fixes because those failures are common and can be repaired quickly on-site.

Fuses protect electrical circuits by breaking the connection when current is too high. Carrying a wide fuse kit lets a technician quickly restore power after a blown fuse without waiting for a special order.

Fuel lines deliver fuel from the tank to the engine or fuel system. On service trucks, carrying or being able to repair fuel lines matters because leaks or damage can stop a machine from running and can be time-critical.

New Holland is another well-known agricultural equipment brand, often associated with tractors and harvesting equipment. The speaker lists it as part of the variety of machines they service from a truck.

The hosts discuss how independent shops should price labor based on their own cost structure and value proposition, not just “being cheaper than the dealer.” The episode argues that independents often have fewer departments to subsidize service, so underpricing can limit growth and profitability.

The speaker uses a specific labor rate example to show how initial pricing can be too low and how raising rates can align with real capability and demand. While the exact number isn’t the technical point, it illustrates the concept of rate calibration over time.

OEM software means manufacturer-provided diagnostic and programming tools used to communicate with a vehicle’s modules. In practice, it’s what lets a shop check for factory updates and run the correct procedures when a car’s behavior is caused by software rather than a worn part.

A software update is a factory revision to a vehicle’s electronic control units (ECUs) that can address drivability, sensor calibration, or diagnostic logic issues. Shops often need the right access and procedures to apply updates correctly, and it can change how the car responds even when no hardware is replaced.

Diagnosing in modern shops usually means using scan tools and OEM procedures to pinpoint whether a fault is caused by a part, a wiring issue, or the vehicle’s software logic. The episode frames diagnosis as a value driver because it can quickly lead to the correct next step (like checking for an update).

Anti-gel (typically diesel fuel anti-gel additive) prevents diesel fuel from gelling in cold temperatures. If it’s not used during a cold snap, fuel can thicken and clog filters, causing hard starts or no-start conditions—exactly the scenario described with the tractor gelled up.

“Gelled up” refers to diesel fuel thickening due to cold temperatures, which can restrict flow through the fuel system and filters. The transcript uses it as a real-world example of how even mechanics can be affected by common weather-related failures.

Fuel filters can clog when diesel fuel gels or contains contaminants, which prevents proper fuel delivery. In cold weather, clogged filters are a common cause of no-start or reduced power, and the episode highlights the practical difficulty of sourcing them quickly.

John Deere is discussed in the context of access to information and software for servicing agricultural equipment. The host references the idea that OEM information can be restrictive, affecting what independent technicians can do without dealer-level tools. The segment also contrasts Deere’s software access model with other brands and the cost of obtaining it.

Calibrations are procedures that teach a control module how to interpret sensor readings or how to set baseline parameters after a repair. Examples in the segment include calibrating a steering sensor after replacement or adjustment. Calibrations are often possible without full OEM update access, but they may still require specific software.

Harbor Freight is a budget tool retailer, and the host uses it as an example of how lower-cost tools help in field repairs. The segment argues that when you can’t borrow special tools from a nearby shop, having affordable “good enough” tools can get you unstuck. This is less about a specific mechanical system and more about practical ownership strategy for mobile technicians.

ECM (Engine Control Module) is the main computer that manages engine-related functions like fuel/air control and emissions strategies. The host mentions that software access limits what they can do with ECMs, including cloning them. This matters because some repairs require module programming or re-flashing rather than just mechanical work.

ECUs (Electronic Control Units) are the various computers in modern vehicles that control different systems (engine, transmission, steering, etc.). The segment suggests that without the right OEM software access, the technician can’t perform certain ECU-related tasks like cloning. That limitation can force dealer visits for programming or software flashes.

A 5 volt reference is a common sensor power/voltage supply used by many vehicle and equipment sensors (like throttle position, pressure, and other analog sensors). If the control module detects that the 5V reference is out of expected range (e.g., reporting “over voltage”), it can trigger diagnostic trouble codes and may indicate a wiring issue, sensor fault, or a problem inside the computer. The host’s troubleshooting shows checking grounds and measuring the voltage at the computer.

The Chevrolet Volt is a plug-in hybrid that uses an electric drive system for everyday driving and a gasoline engine to extend range when needed. It’s often discussed in technical conversations because its electronics and power systems can throw specific sensor or reference codes that require careful diagnosis. The podcast’s mention of a “5 volt reference” aligns with how many of its sensors are powered and monitored.

A software flash is reprogramming a control module with updated firmware from the manufacturer. In the segment, the dealer performs a flash to correct a problem after diagnostics point to the computer itself. This highlights a common workflow: mechanical diagnosis narrows the fault, but the final fix may require OEM programming access.

The hosts emphasize that a diagnosis can still be valuable even if the final repair can’t be completed due to software access or equipment limits. Ruling out major failure modes (like fuel delivery, misfire, or timing) gives the customer actionable information and narrows the problem.

“Fuel pressure in spec” means the fuel system is delivering the correct pressure for the engine to run properly. It’s a key diagnostic checkpoint because it helps rule out a failing fuel pump, clogged filter, or pressure regulator issue.

A relative compression test compares cylinder-to-cylinder compression using a specialized tool, without fully tearing the engine down. It’s used to spot weak cylinders or major mechanical problems and to support “no misfire” conclusions.

A timing check verifies ignition timing (and sometimes related timing components) are set correctly. If timing is out, the engine can run poorly or not start even when fuel pressure and compression look good.

A software lockout refers to a situation where the vehicle’s systems won’t allow certain functions or repairs without the correct manufacturer software/authorization. In modern vehicles, this can force the job to go to a dealer or require specific credentials.

“Overspending on tooling” is the idea that buying expensive specialty tools for one infrequent job can be financially risky for an independent shop. The discussion highlights the need to match tool investment to expected workload and payback.

The hosts argue against bypassing or hacking safety systems, emphasizing professional responsibility and liability. The core idea is that even if a bypass “works,” it can remove protections intended to prevent accidents or reduce harm.

TPMS (Tire Pressure Monitoring System) alerts the driver when tire pressure is too low or otherwise out of range. It’s an example of modern vehicle electronics that can be inconvenient to bypass but is designed to improve safety.

The segment discusses using salvage yards to source parts for older agriculture equipment when new parts are unavailable. It also notes that some solutions require specialized help (like a machinist) to make non-standard parts fit and function safely.

A rebuild kit is a package of replacement components (often seals, bearings, and wear parts) used to restore a failed hydraulic component. In heavy equipment and trucking, rebuild kits can be a cost-effective alternative to replacing the entire unit.

Hydraulic cylinders convert hydraulic pressure into linear motion (push/pull). Rebuilding them typically involves replacing seals and worn internal parts, which can restore performance without replacing the whole unit.

A hydraulic valve is a control component that directs pressurized hydraulic fluid to move actuators like cylinders or motors. When it fails, the system may not move as commanded, which is why shops often rebuild or replace the valve assembly.

A posted labor guide is a standardized pricing reference that estimates how long certain jobs should take, which then drives labor charges. The hosts discuss how skilled shops can sometimes justify pricing beyond that guide based on complexity and parts availability.

The speaker describes a diagnostic/repair philosophy: they won’t replace a part unless they’re highly confident it will fix the issue (they cite “90%”). This reduces the risk of “parts cannon” repairs where multiple components get swapped without solving the root cause.

“Band aid it” refers to temporary fixes that may reduce symptoms but don’t address the underlying problem. The host contrasts this with a more definitive repair strategy, especially when the correct fix is replacement rather than patching.

The discussion contrasts paying for a repair as a single lump sum versus entering extended payment plans (“six years of payments”). This is a practical financial decision that affects how customers evaluate repair worthiness and affordability.

Late fees are charges applied when a customer doesn’t pay within the agreed terms. The host uses them to explain how shop payment policies protect the business from cash-flow problems and unpaid parts/labor.

A transmission is a major drivetrain component that transfers engine power to the wheels, and it’s typically expensive to replace or rebuild. The transcript highlights the financial risk to a shop when a transmission job is done but the customer delays payment.

“Repo” is short for repossession, when a lender takes back a vehicle after missed payments. In repair-shop conversations, it often comes up because customers may stop paying for a broken vehicle or can’t afford ongoing costs.

“Book time” refers to the standardized labor hours listed in repair manuals or estimating guides for a specific job. The hosts argue that real-world conditions—especially in the field or with rust/hidden wiring—often make the job take longer than “book time,” so charging should reflect actual work.

An “hourly rate” is the shop’s labor charge per hour, which should be communicated clearly when the job starts. The discussion stresses that customers should know the rate and that drive time and real access problems can affect total cost.

A “labor matrix” is a pricing/estimating framework shops use to set labor charges based on job complexity and access requirements. The point here is that it should account for extra disassembly and time-consuming access issues—especially on modified vehicles—rather than forcing a one-size-fits-all estimate.

“Upfitted vehicles” are cars or vans modified after purchase for special uses (like ambulances, buses, taxis, or cabs). The hosts argue that these add-ons change access, wiring, and disassembly steps, so standard labor times may not apply.

An “upcharge” is additional cost added after the initial quote when extra parts or labor are required. The segment focuses on how shops should communicate unexpected findings clearly and professionally rather than hiding them. It also discusses how pre-staging common “while we’re in there” parts can reduce the chance of a contentious surprise.

A restocking fee is a charge a shop may apply when a special-ordered part is returned. It’s meant to cover the supplier’s return handling and the shop’s administrative costs. In practice, it affects how you should quote jobs with parts that might not be needed.

Fuel injectors are components that deliver fuel into the engine in precise amounts and timing. When a shop diagnoses an “injector fault,” the repair may not always be the injector itself—sometimes it’s a connector, wiring, or fitment issue. This distinction matters because it changes parts cost, labor time, and whether the fix will actually hold up.

A “buffer” in estimating is extra time and/or parts allowance built into a quote to account for unknowns discovered during teardown. It helps prevent underquoting and protects both the shop and the customer from surprise costs mid-repair. The episode argues that being upfront about the possibility of additional work is more professional than pretending everything will be straightforward.

Glow plugs are used on diesel engines to heat the combustion chambers for easier starting, especially when cold. On some trucks, accessing glow plugs requires significant disassembly, so shops may recommend replacing related components like wiring/harnesses while they’re already in there. The episode highlights how “do it all now” can prevent repeat labor later.

The glow plug harness is the wiring and connectors that supply power to the glow plugs. The segment frames it as a “known issue,” meaning failures can be caused by the harness rather than the glow plugs themselves. That’s why shops may test the harness or replace it while the glow plugs are already accessible.

“Deletes” refers to removing or disabling emissions equipment and/or software controls on a diesel or other vehicle. The segment emphasizes that doing so can be illegal and can lead to prosecution if caught, depending on jurisdiction. The host’s stance is to avoid being involved and instead repair the vehicle as designed.

Derate is when an engine control system intentionally limits power output to protect components or ensure emissions systems operate correctly. In this segment, the host describes trucks losing performance when sensors or DEF-related components report faults, even if the truck is otherwise healthy.

Urea is the chemical basis of DEF used in diesel emissions systems. The host questions the idea of injecting urea into the exhaust to clean it, but also acknowledges the system’s purpose and the need for a workable alternative.