Ron Ananian discusses a variety of automotive topics in this episode, including the legacy of Navajo code talkers and their impact during WWII. He takes calls from listeners, offering expert advice on issues like the reliability of the Cadillac HT4100 engine and troubleshooting ABS problems in a Jeep Gladiator. With a mix of humor and practical insights, Ron emphasizes the importance of proper diagnosis over parts swapping, while also sharing personal anecdotes that connect the automotive world to everyday life.
This week on Ron Ananian, The Car Doctor, Ron opens with a Veterans Day salute and a tribute to the last Navajo Code Talker, whose everyday language helped win a world war. From there, it’s a fast lap through the garage: shopping old Cadillacs with the notorious HT 4100 engine, spooky hearse memories from the ’80s, chasing a hard-to-find clock spring for a ’97 Dodge Dakota, and sorting out lousy MPG on a lifted Jeep JK.
Ron also walks through a smart, no-parts-cannon diagnosis on a Jeep Gladiator ABS fault and closes with a quick “your car might need repair if…” checklist to get you thinking ahead of the holidays. As always, the takeaway is simple: good mechanics aren’t expensive—they’re priceless.
"Wants to talk about, my God, 4,100 HT Cadillac engines?"
The 4,100 HT engine is a type of V8 engine used in some older Cadillac cars. It was designed to be lighter and more fuel-efficient than previous engines.
The 4,100 HT (High Technology) engine is a V8 engine produced by Cadillac in the 1980s and early 1990s. It was known for its lightweight design and was part of Cadillac's effort to improve fuel efficiency while maintaining performance.
"...you can't get replacement parts, pieces, components, assembly, sub-assembly, cylinder heads, or anything anywhere."
Cylinder heads are parts of an engine that help control the air and fuel mixture and allow exhaust gases to escape. They're important for how well an engine runs.
Cylinder heads are crucial components of an engine that house the combustion chambers and valves. They play a key role in the engine's performance and efficiency.
"unlike a small block Chevy, for example, where everything's a dime a dozen, you can pick it up anywhere."
The small block Chevy is a type of V8 engine made by Chevrolet. It's very common, so you can easily find parts for it, making it a favorite among car enthusiasts.
The small block Chevy refers to a series of V8 engines produced by Chevrolet, known for their versatility and widespread availability of parts. They are popular in both classic and modern builds due to their performance and aftermarket support.
"Having said that, what I remember about the HT4100 is the failures went like this and we're talking about an engine"
The HT4100 is a type of engine made by Cadillac. It was used in their cars in the 1980s, but it had some problems that make it hard to find parts for now.
The HT4100 is a V8 engine produced by Cadillac in the 1980s. It was known for its use in several Cadillac models but faced reliability issues, leading to a lack of parts availability today.
"He said, well, they torqued the intake manifold. And now I really got curious, right? What does torquing the intake manifold have to do with that?"
Torquing means tightening screws or bolts to a specific tightness. It's important to make sure parts are secure and work correctly.
Torquing refers to the process of tightening bolts or nuts to a specified level of tightness, measured in units like foot-pounds or Newton-meters. This is crucial for ensuring that components, such as an intake manifold, are securely fastened and function properly.
"He said, well, they torqued the intake manifold. And now I really got curious, right? What does torquing the intake manifold have to do with that?"
The intake manifold is a part of the engine that helps deliver air and fuel to the engine's cylinders. It's important for the engine to run well.
The intake manifold is a component of an engine that distributes the air-fuel mixture to the engine's cylinders. Proper installation and sealing are critical for engine performance and efficiency.
"That's an all aluminum engine. And the weight of the crank, the reason they want the intake manifold torqued at 30,000 miles is because the weight of the crank would pull the center or the belly of the engine down."
An aluminum engine is a type of engine made mostly from aluminum metal. This makes it lighter than engines made from heavier materials, which can help the car go faster and use less fuel.
An aluminum engine is made primarily of aluminum, which reduces weight and can improve performance and fuel efficiency compared to traditional iron engines. However, aluminum engines can also be more susceptible to wear and require careful engineering to ensure durability.
"The problem is the thrust bearing on a 4100, as I remember it, is number three. It's the middle crank journal."
A thrust bearing is a part that helps keep a rotating shaft in place, stopping it from moving too much in one direction. It's important for keeping engines and other machinery working smoothly.
A thrust bearing is a type of bearing that helps to support axial loads in a rotating shaft. It is crucial in applications where there is a need to control the position of the shaft along its axis, preventing it from moving back and forth.
"...an early Fleetwood Brougham was just a gorgeous car. But, you know, you gotta come up with a better engine..."
The Cadillac Fleetwood Brougham is a large, luxurious car made by Cadillac. It's known for being very comfortable and stylish, popular in the late 20th century.
The Cadillac Fleetwood Brougham is a full-size luxury car that was produced by Cadillac from the 1970s through the early 1990s. Known for its spacious interior and classic styling, it represents the height of American luxury car design during that era.
"I'll tell you another really neat thing, if you do get one and you get like an 81 on up, you can do full diagnostics on that engine right through the heater control head."
Diagnostics is a way to check if something is wrong with a car. It helps mechanics find out what needs fixing by using special tools to read error messages from the car's computer.
Diagnostics refer to the process of identifying and troubleshooting issues within a vehicle's systems. In modern cars, this often involves using onboard computers to pull error codes that indicate specific problems.
"Yeah, you can pull codes. I think it's often warmer. And then you can look at the nose switch on the throttle body."
Fault codes are like warning signs from the car that tell you something might be wrong. Mechanics can read these codes to find out what needs to be fixed.
Fault codes are error messages generated by a vehicle's onboard diagnostic system when it detects a problem. These codes help technicians identify and fix issues more efficiently.
Car
Cadillac 4,100
"And they were all Cadillac. They were 4,100 and it became the 4,500"
The Cadillac 4,100 is a luxury car model made by Cadillac, which is known for its comfort and size.
The Cadillac 4,100 is a model that was part of Cadillac's lineup, known for its luxury features and larger size compared to previous models.
Car
Cadillac 4,500
"and it became the 4,500 and then I think the 4,900."
The Cadillac 4,500 is another model from Cadillac that is larger and offers more luxury features than the previous 4,100 model.
The Cadillac 4,500 is a subsequent model that followed the 4,100, continuing Cadillac's tradition of producing larger luxury vehicles.
Car
Cadillac 4,900
"and then I think the 4,900. Right, later on?"
The Cadillac 4,900 is a later model from Cadillac, known for being even larger and more luxurious than its predecessors.
The Cadillac 4,900 is another model in the series that represents Cadillac's evolution towards larger and more luxurious vehicles.
"...and you're working on a Hearst Cadillac. Oh boy, good times..."
A Cadillac Hearse is a special car used to carry people who have passed away. Cadillacs are fancy cars, and this type is made to be comfortable and respectful for funerals.
A Cadillac Hearse is a vehicle specifically designed for transporting the deceased. Cadillacs are known for their luxury and comfort, making them a popular choice for funeral services.
"And frankly, I'd put an LS, I'd put an LS GM motor in it. And, you know, now you got the best of both worlds."
The LS GM motor is a type of V8 engine made by General Motors. It's popular among car enthusiasts for its power and is often used to replace older engines in cars.
The LS GM motor refers to a series of V8 engines produced by General Motors, known for their performance and versatility. These engines are commonly used in various vehicles and are popular for engine swaps due to their compact size and high power output.
"...I'm going to hunt for a 97 Dodge Dakota clock spring. Both my local map on AutoZone can find a clock spring, but without the cruise control function..."
A clock spring is a part inside the steering wheel that helps connect the steering to the car's electrical systems. It allows you to use things like the horn and cruise control while turning the wheel.
A clock spring is a crucial component in vehicles that connects the steering wheel to the electrical systems, allowing for the operation of features like the airbag and cruise control. It enables the steering wheel to turn while maintaining electrical connections.
"...I'm going to hunt for a 97 Dodge Dakota clock spring. Both my local map on AutoZone can find a clock spring..."
The Dodge Dakota is a type of truck that can carry heavy loads and is often used for work. The 1997 version is known for being reliable and useful for various tasks.
The Dodge Dakota is a mid-size pickup truck that was produced by Dodge from 1987 to 2011. The 1997 model is part of the second generation, known for its versatility and capability as a work truck.
"...When I go to Mopar, I'm going to find a clock spring..."
Mopar is a brand that sells parts and accessories for Chrysler cars, including Dodge. If you need a specific part for your Dodge Dakota, Mopar is a good place to look.
Mopar is the parts and service division of Chrysler, which includes Dodge vehicles. It provides original equipment manufacturer (OEM) parts and accessories for Chrysler, Dodge, Jeep, and Ram vehicles.
"...but I purchased a radio for the Ranger. I wanted to put a factory radio back in."
The Ford Ranger is a small truck that can be used for carrying things or driving off-road. It's a good choice for people who need a tough vehicle for different activities.
The Ford Ranger is a compact pickup truck known for its versatility and off-road capabilities. It's popular among those who need a practical vehicle for both work and leisure.
"...that I want to get the seatbelt retractors repaired on and I never thought I'd get that."
Seatbelt retractors are the parts of the seatbelt that help it roll in and out. They keep the seatbelt tight against you when you're in the car, which helps keep you safe.
Seatbelt retractors are mechanisms that allow the seatbelt to be pulled out and retracted back into place. They ensure that the seatbelt is snug against the occupant's body during a crash, providing safety and security.
"...I got my airbag light on and I put my scanner code on it..."
The airbag light is a warning light on your car's dashboard. If it comes on, it means there might be a problem with the airbags, which are important for safety in a crash.
The airbag light is a warning indicator on the dashboard that alerts the driver to a potential issue with the airbag system. If this light is illuminated, it typically means that there is a malfunction that could prevent the airbags from deploying in the event of a collision.
"...I've got a list of things I buy for older vehicles, the suburban, the Monte Carlo, although the Monte Carlo..."
The Chevrolet Suburban is a big SUV made by Chevrolet. It's known for having a lot of space inside and is great for towing things.
The Chevrolet Suburban is a large SUV that has been in production since 1935, making it one of the longest-running nameplates in automotive history. It is known for its spacious interior and towing capacity.
"...I've got a list of things I buy for older vehicles, the suburban, the Monte Carlo, although the Monte Carlo..."
The Chevrolet Monte Carlo is a car that was made by Chevrolet. It has a sporty look and was popular in the 70s and 80s, and then again in the early 2000s.
The Chevrolet Monte Carlo is a two-door coupe that was produced by Chevrolet from 1970 to 1988 and then again from 2000 to 2007. It is known for its sporty design and performance-oriented variants.
"...to get a clock spring for the Thunderbird and I was actually able to buy one brand new out of Ford..."
The Ford Thunderbird is a car that Ford made for many years, known for being stylish and comfortable. It has a rich history and was popular in America.
The Ford Thunderbird is a classic American car that was produced in various generations from 1955 to 2005. It is known for its stylish design and performance, often associated with luxury and comfort.
"I bought a 2017 Jeep JK four-door Jeep and when I bought it, I had the wrong tires on it."
The Jeep JK is a type of Jeep Wrangler made between 2007 and 2018. It's built for driving on rough terrain and is loved by people who enjoy off-roading.
The Jeep JK refers to the fourth generation of the Jeep Wrangler, produced from 2007 to 2018. It is known for its off-road capabilities and rugged design, making it a popular choice among off-road enthusiasts.
"...that the front caliper was hung up. Long story short, I changed both calipers and it still was hung up."
The caliper is part of the brake system that squeezes the brake pads against the spinning disc to help stop the car.
A brake caliper is a crucial component of a disc brake system that houses the brake pads and applies pressure to the brake rotor to slow down or stop the vehicle.
"It's a 22 Chevrolet, 2,500 HD with a 6-6. And I'll drive, I'll drive that around town."
The Chevrolet 2500 HD is a strong truck made for heavy work, like towing trailers or carrying heavy loads. It's built to be tough and reliable.
The Chevrolet 2500 HD is a heavy-duty pickup truck designed for towing and hauling. It offers a range of powerful engine options and is built to handle demanding tasks.
"Did the valve seat fall out? Afraid of the valve tick. Well, yeah."
The valve seat is a piece that helps the engine valves close properly. If it comes loose, it can cause serious problems for the engine.
A valve seat is a part of an internal combustion engine where the valve closes against the cylinder head. If a valve seat falls out, it can lead to significant engine damage and performance issues.
"...gue after that last call to tell you about the 22 Gladiator we fixed this week. What a smooth segue."
The Jeep Gladiator is a truck that can go off-road and also carry things in its truck bed. It's known for being tough and is great for people who like adventures or need to transport stuff.
The Jeep Gladiator is a mid-size pickup truck that combines the rugged off-road capabilities of the Jeep brand with the practicality of a truck bed. Introduced in 2019, it has garnered attention for its unique design and versatility, making it popular among outdoor enthusiasts and those needing a functional vehicle for work and play.
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