Christopher Clingerman Compares Fleet Life to the Dealership
The Jaded Mechanic Podcast
The Jaded Mechanic Podcast May 12, 2026
Christopher Clingerman Compares Fleet Life to the Dealership

Christopher Clingerman Compares Fleet Life to the Dealership

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145:21
Christopher Clingerman Compares Fleet Life to the Dealership
Hyundai Genesis
Car

Hyundai Genesis

The Hyundai Genesis is a luxury car line, meaning it’s meant to feel more upscale than a basic budget car. In the podcast, it’s brought up to explain where it sits compared to the idea of an “economy” car. The focus is on what type of car it is, not a specific repair detail.

Dodge Durango
Car

Dodge Durango

The Dodge Durango is a midsize SUV known for being a popular family hauler. Here, the episode focuses on recurring electrical and infotainment problems (like radio/phone behavior) that lead to frustration and talk of Lemon Law.

Term

Lemon Law

Lemon Law is a law that can force the company to take the car back (or replace it) if it keeps having the same problem and the dealer can’t fix it. They mention it because the car has repeated issues.

Term

Uconnect problems

Uconnect is the car’s main screen and phone/voice system. The episode is saying the Durango’s Uconnect has repeated issues that make it basically not work.

Term

OE

OE means the factory-installed part from the car maker. They’re basically saying they wish the original system worked better so they wouldn’t have to replace it.

Term

aftermarket head unit

An aftermarket head unit is a different brand of car screen/radio that you install instead of the factory one. The host is saying people do this when the original system is frustrating.

Nissan Rogue
Car

Nissan Rogue

The Nissan Rogue is a common family car. In this conversation, they’re talking about problems where it doesn’t run smoothly, especially when it’s idling or when you turn on the AC.

Term

three cylinder 1.5 turbos

This is a small engine with only three cylinders, and it uses a turbo to help it make power. The host is saying that this setup can feel rough or stutter, especially at idle.

Term

rough idle

Rough idle is when the engine shakes or sounds uneven while the car is sitting still. In this episode, they’re dealing with that kind of behavior and the dealer can’t find a clear fix.

Term

transmission replacements

A transmission replacement is when the whole gearbox is replaced. The episode suggests that some cars are getting this done even though the problem is described more like rough running and idle behavior.

Term

idle flares

Idle flare means the engine revs up more than it should while you’re stopped. They’re noticing it especially when turning on the AC.

Term

crank variance

Crank variance is about how smoothly the engine’s rotation is happening. The host is saying a three-cylinder engine can be harder to make perfectly smooth, which might explain the rough idle they’re seeing.

Toyota Corolla
Car

Toyota Corolla

The Toyota Corolla is a popular compact car. They bring it up to compare how other companies can make a small turbo engine feel better (or at least not be as talked about for roughness).

Term

heater core

The heater core is what makes the car’s cabin heat work. If it fails, the repair can be time-consuming because it’s usually tucked behind other parts.

Buick Encore
Car

Buick Encore

The Buick Encore is a small SUV. The host mentions it to illustrate how dealerships sometimes give brand-new techs jobs that are more complicated than they’re ready for.

Term

isolate where a noise is in a car

Isolating a noise means figuring out exactly where the sound is coming from. The host says that if you don’t know how to narrow it down, you can end up taking apart too much and wasting a lot of time.

Term

tape on over the paint

Taping over paint is sometimes used to test where a rattle or wind noise might be coming from. The host is saying it’s a sign of a sloppy diagnostic process that can create more problems than it solves.

Term

hourly tech

Hourly pay means the mechanic is paid for the time they’re at work. The host says this can be better for learning because you’re not pressured to rush every job just to hit pay targets.

Term

upsell

An upsell is when the shop suggests extra repairs or services that weren’t the original plan. The host is saying it could make the job feel harder or more stressful.

Term

warranty alignment

An alignment is when the shop adjusts the wheels so the car drives straight. “Warranty alignment” means the work is being handled under the car’s warranty.

Term

coolant flush

A coolant flush replaces the car’s cooling fluid. The idea is to keep the engine from overheating and to remove old, dirty coolant.

Term

brake flush

A brake flush replaces old brake fluid. Brake fluid helps your brakes work properly, and flushing it can help prevent problems from old or contaminated fluid.

Term

tie rod

A tie rod is part of the steering system that helps control where the front wheels point. If it’s worn out, steering can feel loose or tires can wear unevenly.

Term

flat rate

Flat rate means mechanics get paid a fixed amount for each repair, not for the time they spend. That can affect how shops assign work and how fast techs are expected to finish jobs.

Term

warranty check engine light

The check engine light is a warning that something in the engine or emissions system needs attention. If it’s under warranty, the shop may be able to fix it without you paying—though other problems can show up too.

Byd Seal
Car

Byd Seal

The BYD Seal is an electric car. The podcast is talking about problems like leaks and worn parts that can happen on any car, including things around the wheels and brakes. They’re basically listing the types of issues they check for.

Term

PM inspection

PM inspection means preventive maintenance. It’s a routine check meant to find issues early, like worn brakes, low fluids, or warning lights, before the vehicle fails.

Term

drive well

“Drive well” means checking how the car feels when you drive it—like whether it accelerates smoothly and doesn’t act weird. Fleet inspections include this kind of quick drivability check.

Term

brake chambers

Brake chambers are components in air-brake systems on many trucks. The host is describing a quick way to check whether something inside the air-brake hardware is broken.

Term

wheel seals

Wheel seals are meant to keep the important grease inside the wheel area. If they leak, the wheel parts can wear out faster.

Term

tire pressures

Tire pressure is how much air is in the tires. Checking it helps the tires wear evenly and keeps the vehicle safer to drive.

Term

tanker

A tanker truck is basically a truck with a big sealed tank on it to carry liquid. Instead of hauling a box or container, it hauls the liquid inside the tank.

Renault Wind
Car

Renault Wind

The Renault Wind is a small car with a unique design. The podcast is describing a repair situation where a part was hard to access and required manual work to get it moving. It’s mentioned because the speaker is explaining how annoying that job was.

Term

fuel system

The fuel system is everything that gets fuel from the tank to the engine. It includes parts like the pump, lines, and injectors that help the engine use the right amount of fuel.

Concept

fuel contamination (wrong liquid in diesel system)

Fuel contamination means someone put the wrong liquid into the fuel system. Once it gets into the tank and lines, it can mess up the engine, so the repair may involve replacing multiple parts and thoroughly flushing the system.

Term

fuel injectors

Fuel injectors are the parts that spray fuel into the engine. If the fuel is contaminated, the injectors (and the lines to them) can get clogged or damaged, so they may have to be replaced.

Term

metal line

Fuel “metal lines” are rigid tubes that carry fuel between components like the tank, pump, and injectors. In contamination cases, metal lines can retain residue, so shops may replace them to ensure the system is fully cleaned.

Term

rubber line

Rubber fuel lines are the flexible hoses that carry fuel. If the fuel gets contaminated, those hoses can hold onto the contamination, so they may need to be replaced.

Term

fuel pump

The fuel pump is what sends fuel from the tank toward the engine. If the fuel gets contaminated, the pump can be affected too, so it may need replacement.

Term

distribution valve

A distribution valve is a part that helps control where fuel goes. In a truck with two tanks, it can help make sure both tanks feed the engine in a balanced way.

Term

AW32 hydraulic oil

AW32 is a specific type of thick oil used in hydraulic systems. The idea is that if it leaks, a plant-based alternative is less harmful to the ground.

Term

DPF

A DPF is a filter on a diesel that catches soot from the exhaust. It periodically burns that soot off so the filter doesn’t clog.

Term

SCR system

The SCR system is how many diesel trucks clean up exhaust gases. It uses a chemical additive to help turn the most harmful emissions into less harmful ones.

Term

EDR delete

An “EDR delete” is when someone removes or disables an emissions control part on a diesel truck. People do it for performance or sound, but it can also make the truck less compliant with emissions rules.

Term

black smoke

Black smoke usually means the diesel isn’t burning its fuel cleanly. It can happen when the truck is tuned or modified to run too rich, and it’s a common reason for being pulled over.

Term

stacks

“Stacks” are tall exhaust pipes added to a diesel truck. They can make the truck louder and can be part of modified setups people use to look and sound more aggressive.

Term

lift

A lift raises the truck higher off the ground. People do it for bigger tires or more clearance, but it can also mess up how the truck looks and handles if the rest isn’t set up right.

Jeep Wrangler
Car

Jeep Wrangler

The Jeep Wrangler is an SUV built for off-road driving. People often change the tires to better handle dirt, mud, or rough roads. In the podcast, they’re talking about the type of tires they use on their Wrangler.

Chevrolet Silverado
Car

Chevrolet Silverado

The Chevrolet Silverado is a popular full-size pickup. Here, the host talks about his own Silverado and how he upgraded the tires for winter driving.

Term

bald tires

Bald tires are tires with almost no tread left. They don’t grip the road well, so braking and turning become much less safe.

Term

all wheel drive

All-wheel drive helps the car put power to more than two wheels for better traction. But if the tires are worn out, even AWD can’t make it safe.

Term

wheel slippage

Wheel slippage is when a tire starts spinning because it doesn’t have enough grip. Cars can detect that and adjust power to help you keep moving.

Term

front wheel drive

Front-wheel drive means the front wheels do the work of moving the car. Some AWD cars start like this and only add rear-wheel power if the front wheels start slipping.

Term

rear wheel drive

Rear-wheel drive means the back wheels move the car. Some AWD systems can behave like rear-wheel drive most of the time and only change when traction is lost.

Chevrolet Spin
Car

Chevrolet Spin

The Chevrolet Spin is a family-style vehicle meant to carry people and handle daily driving. The podcast is talking about a problem where the parts inside the drivetrain move, but the wheels still don’t get power. That usually means something in the power-transfer system isn’t engaging correctly.

Term

coupler

A coupler is a connector inside the drivetrain that helps send power to the other axle. If it breaks, the car can feel like it has AWD but it won’t really send power where it should.

Term

differential

A differential is a part that lets the wheels on an axle turn at slightly different speeds. That matters for turning, and it’s also part of how power gets distributed in AWD.

Ford Ranger
Car

Ford Ranger

The Ford Ranger is a pickup truck. Here they’re talking about how whether it’s two-wheel drive or four-wheel drive changes how well it handles snow.

Toyota A90
Car

Toyota A90

The Toyota Supra is a sports car designed to be fast and fun to drive. People who like cars often talk about it because it has a strong performance reputation. In the podcast, it’s mentioned as one of the cars the speaker has owned.

Term

limited slip rear end

A limited-slip rear end helps prevent one wheel from spinning uselessly. It can make a truck get moving better when traction is uneven.

Term

active fuel management

Active Fuel Management is a system that turns off some cylinders when you don’t need full power. If it malfunctions, it can cause engine problems and may need repairs.

Term

stage two cam

A camshaft controls valve timing inside the engine. A “stage two” cam is a more performance-oriented version that can change how the engine feels and makes power.

Term

8-speed

An 8-speed transmission is an automatic gearbox with eight different gear ratios. It helps the engine stay in the right range, but sometimes you can feel odd shifting when it’s cold or not perfectly smooth.

Term

shudder

Shudder is when the car vibrates or feels like it’s jerking. Here they say it happens mostly when the vehicle is first warming up.

Term

AFM

AFM is another fuel-saving system that can shut off some cylinders when you don’t need full power. The host thinks that removing it could help prevent certain transmission problems.

Term

lockup

On an automatic transmission, there’s a part that can slip to smooth out power delivery. “Lockup” is when it tightens up to reduce that slipping, and the host says frequent switching can feel jerky.

Term

timing chains

Timing chains keep the engine’s moving parts working in sync. The host is saying that on some turbo engines, the chain can wear out sooner than you’d expect.

Term

turbocharger

A turbocharger boosts engine power by using exhaust gases to cram more air into the engine. The host’s concern is that when turbos fail, the repair can be very costly.

Term

manifolds

Manifolds are parts that route exhaust gases to the turbo. The host is saying they can crack or fail, and if they go bad along with the turbo, the job gets expensive.

Ford Fusion
Car

Ford Fusion

The host describes owning a 2013 Ford Fusion with a naturally aspirated four-cylinder, then later passing it along and seeing it reach about 130,000 miles with relatively few issues. It’s used to argue that non-turbo (or less complex) setups can be easier to live with over time.

Term

naturally aspirated

Naturally aspirated means the engine doesn’t use a turbo or supercharger to force air in. The host is basically saying it can be a simpler, less failure-prone setup.

Term

Cummins

Cummins is a company that makes diesel engines. In trucks and buses, a Cummins engine is often chosen because it’s built for heavy use.

Freightliner C2
Car

Freightliner C2

A Freightliner C2 is a commercial truck that fleets use for lots of driving. The example here mentions it has a Cummins engine and air brakes—both are common in heavy-duty vehicles.

Term

air brakes

Air brakes are brakes that use compressed air to help the vehicle stop. They’re common on big trucks and buses because they work well under heavy use.

Concept

fleet life

“Fleet life” just means how long a company keeps its vehicles in regular service. Here, they’re talking about school buses and how they get retired after a certain number of years.

Concept

phasing out

“Phasing out” means the fleet starts retiring vehicles instead of using them every day. Eventually they’re sold, often to someone who repurposes them.

Concept

auction

An auction is where vehicles get sold to buyers who bid on them. Fleet vehicles often end up at auction when the company retires them.

Concept

schoolies

“Schoolies” are school buses that people convert into campers. In this segment, they mention adding things like air conditioning for comfortable travel.

Term

mini split

A mini split is an air conditioner/heater system without ducts. It’s often used in camper conversions because it’s easier to install than a whole duct system.

Term

ASCs

“ASCs” here is being used in the same conversation as ASE, which is a mechanic certification. The point is whether shops and employers recognize that credential.

Term

ASE

ASE is a certification program for auto mechanics. It’s meant to show a technician has proven knowledge and training in specific repair areas.

Term

certified

“Certified” means the mechanic has completed training and passed tests to prove they can do certain kinds of repairs. In this segment, it’s discussed alongside ASE certification.

Term

heavy duty air brake

Some trucks use air instead of brake fluid. A compressor makes compressed air, and that air pressure helps squeeze the brakes at the wheels.

Company

Thomas built boss

This sounds like a bus-related training/parts provider. The point in the conversation is that technicians get extra education from manufacturers and specialists, not just from the shop.

Term

Scanner Dan

Scanner Dan is a person who teaches car diagnostics, often using scan tools. The host is suggesting shops use that kind of video training during work hours.

Term

Moto htst

This seems like another training channel the speaker is talking about. They’re using it as an example of videos technicians can watch during a scheduled training time.

Term

engine diag

“Engine diag” means figuring out what’s wrong with an engine using tools and tests. The speaker is saying some techs focus on that but may miss other practical skills.

Term

MIG welder

A MIG welder is a tool for joining metal parts with a wire and shielding gas. The host is saying technicians should learn hands-on repair skills, not just engine diagnosis.

Term

broken stud

A stud is like a threaded bolt that’s used to hold engine parts together. If it breaks off inside the engine, it can be tricky to remove without ruining the surrounding metal.

Term

cylinder head

The cylinder head is the top part of the engine where the combustion happens. It’s important and has precision surfaces, so repairs there need to be done carefully.

Term

fuel trims

Fuel trims are the car’s way of fine-tuning how much gas it’s injecting. If the engine computer keeps adjusting them, it can be a clue that something isn’t right.

Term

oxygen sensor

An oxygen sensor checks what’s coming out of the exhaust. The engine uses that info to adjust the fuel mixture so the car runs correctly.

Term

wideband

A wideband sensor gives a more detailed readout of the air-fuel mixture. That helps a mechanic pinpoint mixture problems instead of guessing.

Term

camel pack springs

Camel pack springs are a type of truck suspension spring made from multiple metal leaves. They’re heavy, so the job often needs special lifting tools.

Part

U bolts

U-bolts are heavy-duty clamps that hold parts together. In this context, they’re used to secure suspension components and need to be tightened correctly.

Term

torque multiplier

A torque multiplier is a mechanical tool that helps you tighten bolts to a very high spec. It makes the job easier while still getting the correct tightness.

Brand

Mack trucks

Mack Trucks is a company that makes heavy-duty trucks. The host is talking about how their tail-light wiring is set up and why that design can make repairs more confusing.

Chevrolet Volt
Car

Chevrolet Volt

The Chevrolet Volt is a hybrid car you can plug in. It uses electricity for some driving, and it can also use gasoline when needed. Even though it’s hybrid, it still has a normal 12-volt system for things like lights, which is what the podcast is talking about.

Part

wiring harness

A wiring harness is the car’s wire bundle that connects all the electrical parts. If it gets damaged or the connections are bad, lights and other systems can act up.

Term

fifth wheel plate

A fifth-wheel plate is the mounting area on a semi-truck where the trailer connects. The host mentions it because the frame/ground location matters when troubleshooting electrical issues.

Term

booster cable

A booster cable is a heavy-duty cable used to jump-start a vehicle’s battery. Here, it’s used as a temporary test lead to connect power/ground and isolate whether a lighting issue is caused by a bad ground.

Term

Ohm's law

Ohm’s law is a basic rule for electricity. It helps you understand how voltage, current, and resistance relate when you’re testing car wiring.

Term

flowchart

A flowchart is a checklist for troubleshooting. You follow steps in order, but the point here is that you also need to understand what the steps mean so you don’t miss the real cause.

Term

RTFM

RTFM means “read the manual.” The service manual can tell you exactly what to test and what numbers you should see.

Term

5 volt reference

Many car sensors run on a steady reference voltage. If that voltage is wrong, sensors can’t send correct signals, and the engine may not run right.

Ford Probe
Car

Ford Probe

The Ford Probe is an older sporty car. The podcast is describing troubleshooting an electrical problem related to ignition parts, like coils, using test probes. That’s why the car is mentioned—because it’s the one being diagnosed.

Term

back probe

Back-probing is a way to test wires while they’re still connected. You probe the back of the connector so you don’t mess up the wiring during testing.

Term

ground problem

A ground problem means the car’s electrical system isn’t getting a solid connection back to the battery/metal body. If the ground is bad, lights and sensors can act weird or fail.

Term

relay valves

Relay valves help the air brake system send the right amount of air to the brakes at the right time. Think of them as helpers that make the system respond correctly.

Term

one way check valves

Check valves are like one-way doors for air. They let air go one direction and stop it from going backward.

Term

main valve

The main valve is like the main control switch for the air system. It helps decide when air goes where so the brakes can apply and release.

Term

back feeding

Back feeding means air is moving where it shouldn’t—like pressure sneaking back the wrong way. That can mess up how the brake system behaves.

Term

parking brake

The parking brake is what keeps the vehicle from rolling when it’s parked. In air brake systems, it’s tied to air pressure, so it affects how other brake parts behave.

Term

airbags (air brake airbags)

Here, “airbags” are the air-powered brake parts that push the brakes when pressurized. When they “dump,” it means the air pressure is released.

Term

air leak

An air leak is when air escapes from the brake system. That can make the brakes less effective because the system can’t keep the right pressure.

Term

QR valve

A QR valve is a valve in the air brake/air system that controls how air moves. In the story, replacing it didn’t solve the problem, showing that the diagnosis wasn’t complete.

Lucid Air
Car

Lucid Air

The Lucid Air is an electric car, meaning it runs on batteries instead of gasoline. Even though it’s electric, it can still have problems that need diagnosing and repair. The podcast mentions it in the context of working on an issue related to “air.”

Term

diagnostic trouble codes

Diagnostic trouble codes are like the car’s error messages stored in the computer. If the same code comes back, it often means the problem still isn’t fixed.

Term

thermostat

The thermostat helps the engine warm up and then keeps it at the right temperature. If it sticks or fails, the engine temperature can be wrong and the problem may come back.

Term

coolant level

Coolant level is the amount of engine coolant in the system, which must be sufficient for heat transfer and proper temperature control. A low coolant level can cause overheating and can lead to repeated diagnostic trouble codes.

Term

burp off

“Burp off” means getting trapped air out of the cooling system. Air in the system can stop coolant from flowing where it needs to go.

Term

air bubble

If there’s trapped air in the cooling system, coolant can’t circulate the way it should. That can make the engine take longer to warm up and can cause trouble codes.

Term

P0128

P0128 is a computer error code that usually means the engine is taking too long to warm up. Often it points to the thermostat not working right, so the engine doesn’t get to the right temperature.

Term

OBD-II

OBD-II is the car’s built-in diagnostic system. It records error codes (like P0128) that a scan tool can read to help find the problem.

Brand

Dorman

Dorman makes aftermarket replacement parts. The hosts are debating whether Dorman thermostat parts reliably fix a common “engine not warming up” code like P0128.

Brand

Motorad

Motorad is another aftermarket parts brand. The speaker says they used a Motorad thermostat part on a Jeep and it fixed the P0128 problem.

Term

scan tool

A scan tool plugs into the car and lets you see what the computer is seeing—like error codes and live sensor data. It helps diagnose problems more accurately than guessing.

Concept

misdiagnosed

A misdiagnosis is when the mechanic guesses the wrong cause of the problem. Then the fix doesn’t really solve it, and the car may come back again.

Part

brake calipers

Brake calipers are the parts that squeeze the brake pads onto the spinning brake disc. If the seals inside them fail, brake fluid can leak and braking can become unreliable.

Term

caliper seals

Caliper seals are the seals that keep brake fluid from leaking out of the brake caliper. If they fail, fluid can leak and the brakes may not work correctly.

Term

bleed the brakes

Bleeding the brakes means getting air out of the brake fluid lines. If air is trapped, the brake pedal can feel soft and braking won’t work as well.

Term

road test

A road test is a quick drive to make sure the repair actually worked. It helps catch problems that don’t show up just while the car is parked.

Term

motor rad

“Motor rad” means the radiator that cools the engine coolant. They’re saying changing it helped with a temperature problem.

Brand

Rock Auto

RockAuto is a website where people buy car parts online. The point here is that some parts cost less there than through a shop or dealership.

Brand

Monroe mufflers

Monroe is a brand that makes aftermarket car parts, including mufflers. They mention it just as background for the story.

Term

pistons are coming out

In brake terms, “pistons are coming out” means the caliper’s moving parts aren’t behaving normally. That can happen if the caliper wasn’t installed correctly or if the parts/seals are wrong or damaged.

Part

shims

Shims are small thin parts that help the brake pads sit the right way. If they’re missing, the pads can fit badly and the brakes may not work as smoothly.

Part

brake pads

Brake pads are the parts that squeeze against the brake rotor to slow the car down. If the pads aren’t installed with the right small pieces, they can fit poorly and cause extra problems.

Company

AutoZone

AutoZone is a store where you can buy car parts. In this story, it’s where the cheaper brake pads were purchased.

Concept

customer-supplied parts

Customer-supplied parts are parts you buy yourself and bring to a mechanic. The episode’s point is that if the parts are missing small pieces or aren’t the right kit, the job can turn into a headache.

Term

rotor

The rotor is the metal disc the pads press against to stop the car. If the rotor and pads don’t match up well, the brakes can wear out sooner or feel off.

Brand

Canadian Tire

Canadian Tire is a store that sells car parts. In the episode, it’s mentioned as a place you might buy very cheap brake pads that may not include everything needed for proper installation.

Brand

Michelins

Michelin makes tires. The point here is that expensive tires aren’t always necessary for normal driving, and cheaper tires can still work well.

Term

all season tire

An all-season tire is meant to handle a mix of weather—warm and cool—without being specialized for only winter. The episode compares it to switching to winter tires.

Term

winter tire thing

Winter tires are tires made to work better in cold weather and snow. The host’s complaint is about the extra effort of taking tires off the rims and swapping them back and forth.

Term

potholes

Potholes are holes in the road. Hitting them can cause flats or bend your wheels.

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