Ron Ananian, The Car Doctor - January 24, 2026 - Hour 2
About this episode
Ron Ananian tackles various automotive issues in this episode, including a detailed discussion on a listener's 2015 Ford Fusion with persistent hesitation problems. The conversation dives into diagnostic strategies, including the importance of checking fuel pressure and potential sediment issues in the gas tank. Additionally, Ron shares insights on the challenges of diagnosing evap leaks, particularly in older vehicles, and emphasizes the significance of thorough inspections. With a mix of humor and practical advice, listeners gain valuable knowledge on troubleshooting common car problems.
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Porsche Cayman
"I read about this guy who bought a 2020 Porsche Cayman that was well-loved. I mean, there are plenty of Caymans in great condition on eBay, but this one needed some work."
The Porsche Cayman is a sports car that is designed to be fun to drive. The 2020 version has a stylish look and is known for being very well-balanced, which helps it handle well on the road.
The Porsche Cayman is a mid-engine sports car known for its balance and performance. The 2020 model features a sleek design and offers a range of powerful engines, making it a popular choice among driving enthusiasts.
Ford Fusion
"Let's go down to Kenneth in Virginia with a 15 Ford Fusion and, well, a weird problem. Let's talk about this."
The Ford Fusion is a car that is good for families and commuting. It's known for being comfortable and having good gas mileage.
The Ford Fusion is a midsize sedan known for its comfortable ride and fuel efficiency. It has been popular for its spacious interior and advanced technology features.
check engine light
"...the check engine light kept going off and on, but it was a reading that the high fuel sensor needed to be replaced."
The check engine light is a warning light in your car that tells you something might be wrong with the engine. It could be a small issue or something more serious, so it's important to check it out.
The check engine light is an indicator on the dashboard that signals a problem with the vehicle's engine or emissions system. It can illuminate for various reasons, ranging from minor issues to serious engine problems.
low fuel sensor
"...we got to replace the low fuel sensor. And then they replaced that in the engine..."
The low fuel sensor tells you when your gas tank is getting empty. If it doesn't work right, you might not know when to fill up, which can cause problems.
The low fuel sensor is a device that detects the fuel level in the tank and alerts the driver when it is low. If it malfunctions, it may give false readings, leading to potential running issues.
fuel pump
"...we got to replace the fuel pump. And it was just a whole bunch of things that were happening."
The fuel pump is what sends gas from the tank to the engine. If it stops working, your car might not run well or could even stall.
The fuel pump is a critical component in a vehicle's fuel system that delivers gasoline from the fuel tank to the engine. If it fails, the engine may not receive the necessary fuel to operate properly, leading to performance issues.
fault code
"But also understand if you have a fault code for the high fuel pressure sensor, I don't know of any code in any car."
A fault code is a message that the car's computer sends out when something is wrong. Mechanics use these codes to figure out what needs to be fixed.
A fault code is a diagnostic trouble code (DTC) generated by a vehicle's onboard computer when it detects an issue with a system or component. These codes help technicians identify problems during vehicle diagnostics and repairs.
scan tool
"...we hook up a scan tool? We'll take this car for a ride, pay for a diagnostic hour and come back and tell you..."
A scan tool is a device that connects to a car's computer to check for problems. It helps mechanics understand what's wrong with the car by showing error messages and data.
A scan tool is a diagnostic device used to communicate with a vehicle's onboard computer systems. It retrieves error codes and real-time data, helping technicians diagnose issues with the vehicle.
fuel pressure
"...the purpose of the high fuel pressure, low fuel pressure sensors. That's the purpose of all that. We can see fuel pressure readings vis-a-vis a scan tool."
Fuel pressure is how much force the fuel has in the fuel system. If it's too low or too high, the engine might not run well or could have problems.
Fuel pressure refers to the pressure of fuel within the fuel system, which is crucial for the proper operation of the engine. It affects fuel delivery to the injectors and can impact engine performance if not within specified ranges.
GDI pump
"Do we have a do we have a problem with the GDI pump, which is not completely uncommon?"
A GDI pump helps inject fuel directly into the engine for better efficiency and power. It's an important part of modern engines that use direct injection technology.
A Gasoline Direct Injection (GDI) pump is a component that delivers fuel directly into the combustion chamber of an engine, allowing for more efficient fuel combustion and improved performance.
fuel sock
"although you would think if it's sediment and it somehow worked its way past the sock that's supposed to be there. And by sock, you understand what I'm saying?"
A fuel sock is a filter in the gas tank that keeps dirt and debris out of the fuel system. It helps ensure that the fuel going to the engine is clean.
A fuel sock is a filter located in the fuel tank that prevents debris and sediment from entering the fuel pump. It helps maintain fuel cleanliness and protects the fuel system.
Toyota Matrix
"...let's go over and talk to Joe in South Jersey, 06 Toyota Matrix."
The Toyota Matrix is a small car that has a hatchback design, which means it has a rear door that swings upward. It's known for being useful and efficient, great for everyday driving.
The Toyota Matrix is a compact hatchback that was produced from 2002 to 2014. It is known for its practicality, versatility, and good fuel economy, making it a popular choice among small car buyers.
fuel trim
"Number one, I want to look at fuel trim. I want to see where fuel trim is when it's cold."
Fuel trim is how the car's computer adjusts the fuel mixture to make sure the engine runs well. It changes based on things like how hot or cold the engine is.
Fuel trim refers to the adjustment made by the engine control unit (ECU) to the air-fuel mixture based on various factors such as temperature and engine load. It helps optimize engine performance and emissions by ensuring the correct amount of fuel is injected into the engine.
power steering
"For example, nobody ever thinks about car has power steering, right? OK."
Power steering makes it easier to turn the steering wheel of a car. It helps you steer without having to use a lot of strength, especially when parking or going slow.
Power steering is a system that helps drivers steer the vehicle by augmenting the steering effort needed to turn the wheel. It typically uses hydraulic or electric actuators to assist with steering, making it easier to maneuver the car, especially at low speeds.
Toyota Camry
"...nd one was a what was the sister car to that, the Camry or the Corolla? One of them, I forget which."
Toyota Corolla
"...the Camry or the Corolla? One of them, I forget which. But yeah, Corolla, right."
The Toyota Corolla is a small car that is very popular around the world. It's known for being reliable and good on gas.
The Toyota Corolla is a compact car that has been one of the best-selling cars worldwide since its introduction in 1966. It is known for its reliability, fuel efficiency, and practicality.
intake manifold gaskets
"But probably the most common cause of what you're describing at that mid-temperature range between 130 and 170 degrees of engine operation is going to be leaky intake manifold gaskets. Have you put intake manifold gaskets on this yet?"
Intake manifold gaskets are important parts that help seal the area where air and fuel enter the engine. If they leak, it can cause problems with how the engine runs.
Intake manifold gaskets are seals that sit between the intake manifold and the engine block. They prevent air and fuel leaks, ensuring that the engine operates efficiently. If these gaskets fail, it can lead to performance issues and engine damage.
O-rings
"...I would almost guarantee you those round O-rings are now crushed square."
O-rings are rubber rings that help keep liquids or gases from leaking out of machines. They fit into grooves and create a seal when two parts are joined together.
O-rings are circular seals used to prevent the leakage of fluids or gases in mechanical systems. They are commonly found in various automotive applications, including engines and transmissions, to ensure a tight seal between components.
vacuum leak
"We're looking for a vacuum leak that all of a sudden occurred. If the engine started to, if the engine, if an injector started to somehow spray more fuel, what do you think the consequence would be?"
A vacuum leak is when air gets into the engine where it shouldn't, which can cause the engine to run poorly. It's like having a hole in a straw when you're trying to drink.
A vacuum leak occurs when there is an unintended gap in the intake system, allowing air to enter the engine without going through the proper channels. This can lead to poor engine performance and increased emissions.
intake gaskets
"...take a look at intake gaskets, if they haven't been done as maintenance, maybe now is the time."
Intake gaskets are parts that help seal the area where air and fuel enter the engine. If they wear out, it can cause problems with how the engine runs.
Intake gaskets are seals that sit between the engine's intake manifold and the cylinder head. They help prevent air and fuel leaks, ensuring the engine runs efficiently and effectively.
body panels
"...with all these parts he found on eBay. Performance brakes, suspension, body panels, the works, guaranteed to fit."
Body panels are the outer parts of a car, like the doors and hood. If they get damaged, they can be replaced to make the car look new again.
Body panels are the exterior components of a car that make up its structure and shape. They can include doors, hoods, fenders, and more, and can be replaced or repaired for aesthetic or functional purposes.
suspension
"...with all these parts he found on eBay. Performance brakes, suspension, body panels, the works, guaranteed to fit."
The suspension is the part of the car that helps it ride smoothly over bumps and turns. It connects the car to the wheels and keeps everything stable while driving.
The suspension system of a car connects the vehicle to its wheels and allows for relative motion between them. It plays a crucial role in handling, ride comfort, and stability.
performance brakes
"...with all these parts he found on eBay. Performance brakes, suspension, body panels, the works, guaranteed to fit."
Performance brakes are special brakes that help a car stop faster and handle better, especially when driving fast or on a track. They are made to handle more heat and pressure than regular brakes.
Performance brakes are upgraded braking systems designed to provide better stopping power and heat dissipation compared to standard brakes. They are often used in sports cars and racing applications.
Nissan Frontier
"in your 13 frontier today, sir? What's goin' on?"
The Nissan Frontier is a small truck that can carry heavy loads and is often used for work or outdoor activities. It's known for being tough and reliable.
The Nissan Frontier is a compact pickup truck known for its durability and off-road capabilities. It's popular among those who need a reliable vehicle for both work and leisure activities.
P0456
"a few years ago, it threw a check engine let code, a P0456, which is a small eVap leak. Right."
P0456 is a code that your car's computer uses to tell you there's a small leak in the system that keeps fuel vapors from escaping. It's important to fix to keep your car running well and reduce pollution.
P0456 is an OBD-II trouble code indicating a small leak in the evaporative emissions control system. This system is responsible for preventing fuel vapors from escaping into the atmosphere.
Nissan
"First of all, Nissan strategy. Nissan loves their customers so much that they've created a software strategy"
Nissan is a car company from Japan that makes many types of vehicles, like cars and trucks. They are known for their reliable cars and advanced technology.
Nissan is a Japanese automotive manufacturer known for producing a wide range of vehicles, including sedans, SUVs, and sports cars. They are recognized for their innovation and technology in the automotive industry.
evaporative emissions fault
"...if the vehicle has a pending evaporative emissions fault, it will tell you to check the gas cap because they don't want you to think the car is broken."
An evaporative emissions fault means there's an issue with the system that keeps gas fumes from leaking into the air. It's important for keeping the environment clean and can affect how your car runs.
An evaporative emissions fault refers to a problem in the vehicle's system that prevents fuel vapors from escaping into the atmosphere. This system captures and stores fuel vapors from the fuel tank to reduce emissions and improve efficiency.
gas tank
"It's got a gas tank, right? So that vehicle's sitting out in the hot sun, they've got to have a way to vent pressure in the tank and control fumes."
A gas tank is where the fuel is stored in a car. It's important because the engine needs fuel to run.
The gas tank is a component of a vehicle that stores fuel for the engine. It is designed to hold gasoline or diesel and is typically located at the rear of the vehicle.
purge valve
"So, there's a purge valve attached at the engine end"
A purge valve helps manage the fumes from the gas tank. It makes sure that any gas vapors are sent to the engine instead of being released into the air.
A purge valve is a component in the vehicle's evaporative emissions control system. It allows fuel vapors from the gas tank to be drawn into the engine to be burned, helping to reduce emissions.
evaporative emissions system
"of the evaporative emissions system and there is a vent valve at the back of the vehicle"
This system helps keep harmful gas fumes from leaking out of the car. It collects the gas vapors and sends them back to the engine to be used instead of letting them escape into the air.
The evaporative emissions system is designed to prevent fuel vapors from escaping into the atmosphere. It captures and stores these vapors, which are then purged and burned in the engine during operation.
charcoal canister
"the vent line goes to the charcoal canister. Do you have goldfish as a kid?"
This part holds onto gas fumes so they don't escape into the air. When the engine is ready, it sends those fumes back to be burned off, helping to keep the environment cleaner.
The charcoal canister is a component of the evaporative emissions system that stores fuel vapors until they can be purged into the engine. It helps reduce emissions and improve air quality.
Ford Ranger
"and see what's going on here. Oh, five ranger, what's going on? Well, I've been chasing a small..."
The Ford Ranger is a smaller truck that people use for carrying things and driving on rough roads. It's known for being tough and good on gas, making it a favorite for those who need a reliable vehicle for work or adventures.
The Ford Ranger is a compact pickup truck that has been a popular choice for both work and leisure since its introduction in the 1980s. Known for its durability and versatility, the Ranger is often discussed for its off-road capabilities and fuel efficiency compared to larger trucks.
Jeep Wrangler
"...on the 2026 Jeep Wrangler for Doorsport S with a gas-powered engine for $369 a month..."
The 2026 Jeep Wrangler is a tough SUV designed for off-road driving. It can handle rough terrain and is popular among people who like outdoor adventures.
The 2026 Jeep Wrangler is a popular off-road vehicle known for its rugged design and capability. It offers various configurations, including different trims and engine options, catering to both adventure seekers and daily drivers.
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