The Importance of AC & Heating Systems Maintenance 

Proper AC and heating systems maintenance is crucial for the comfort of your drivers, especially during long hauls. In addition, it can help reduce the risk of breakdowns on the road, which can lead to costly repairs and downtime, improve fuel efficiency, and extend the life of your AC and heating systems. Regular AC and heating systems maintenance is especially important during cold weather, as neglecting your AC or heating system can lead to equipment failure and safety hazards in the cold. 

Common AC & Heating Systems Issues

AC and heating systems issues can arise from wear and tear or damage. Common problems include clogged filters, air leaks, super-absorption, fan or motor failures, and electrical malfunctions. In colder weather, the risk of the AC or heating system malfunctioning is higher, which can lead to a dangerous situation for the driver. That’s why we suggest setting up a truck AC repair and heating system repair appointment before the seasons change, so you can avoid any significant problems down the line.

Our Truck AC & Heating Systems Repair Services

At Quality Mobile Fleet Services, our experienced mechanics offer a range of AC and heating systems repair services. We understand the importance of having your trucks in top working condition, and we are committed to providing quality repairs to keep your fleet operating efficiently.
Our truck AC and heating systems repair services include:

• A/C vacuum and recharge
• Gladhand replacement
• Red and blue line replacement
• Trailer air and electrical junction box replacement
• Fittings
• Dryer and evaporator core service
• Condenser replacement
• Air compressor replacement
• Hose replacement
• Air leak repair

Aside from our AC service, we can perform all truck AC repairs and heating system repairs on-site or in-shop, for your convenience. 

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Neglecting your truck's AC and heating systems can lead to decreased productivity, safety hazards, and expensive repairs. Quality Mobile Fleet Services is dedicated to providing exceptional truck AC repair and heating system repairs in San Diego, California. Contact us today to schedule an appointment with our experienced team of professionals.
 619-900-6030

Common Issues with Heavy-Duty Axles 

Heavy-duty axles, like those found on commercial vehicles, can withstand extreme conditions but aren’t indestructible. Common issues with heavy-duty axles can vary depending on the type of axle and the specific application—however, some of the most typical issues include bearing and seal failure, worn or damaged brakes, and damaged suspension components. Other common issues include worn or damaged drive shafts, damaged U-joints, and misaligned or bent axles.

Our Axle Repair Services

At Quality Mobile Fleet Services, we understand how important your truck's axles are to your business. Our experienced mechanics are equipped with the latest tools and technology to diagnose and repair any axle problems. We offer a range of services, including bearing and seal replacement, gear and spline repair, and axle shaft replacement. Our team can perform these repairs on-site or in our axle repair shop in San Diego, California.

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Our commitment to quality and affordability is what sets us apart from the competition. We strive to provide our customers with the best possible service at a fair and competitive price. So, whether you need routine maintenance or extensive axle repairs, you can trust Quality Mobile Fleet Services to get the job done right. Contact us today to schedule your truck axle repair appointment.
619-900-6030

How Air Brakes Work

Air brakes work by converting air pressure into mechanical force to apply the brakes. A typical air brake system consists of a compressor, air storage tanks, brake chambers, slack adjusters, valves, and brake shoes. When the driver presses the brake pedal, the air pressure is released, and the brake shoes apply pressure to the drums or rotors to stop the vehicle. At Quality Mobile Fleet Services, we specialize in air brake repair and work on components such as shoes, kits, cams, slack adjusters, valves, compressors, brake chambers, and drums.

How Hydraulic Brakes Work

Hydraulic brakes work by using fluid pressure to apply the brakes. A typical hydraulic brake system consists of a master cylinder, brake lines, wheel cylinders, brake shoes or pads, and a brake booster. When the driver presses the brake pedal, the master cylinder applies pressure to the brake fluid, which then applies pressure to the wheel cylinders, causing the brake shoes or pads to apply pressure to the drums or rotors.
Bring your truck to us if you have problems with your hydraulic brakes! Aside from repairing wheel cylinders, master cylinders, brake lines, and shoes, we also adjust brake boosters.

Brake Repair Services

At Quality Mobile Fleet Services, we offer a comprehensive range of commercial truck brake repair services to make sure your vehicle's braking system is in top condition. We repair and adjust drums and rotors to ensure they are not warped or damaged, which can result in uneven braking and vibrations on the road. Our team of experienced mechanics is dedicated to providing quality workmanship and will ensure your brakes are working optimally.

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If you need truck brake repair in San Diego, California, look no further than Quality Mobile Fleet Services. We are dedicated to providing the highest level of service and ensuring that your vehicle's braking system is functioning correctly. Contact us today to schedule an appointment or to learn more about our services.
619-900-6030

The Importance of Coolant Systems 

The coolant system is an essential component of a commercial truck's engine, and it helps regulate the temperature of the engine, keeping it from overheating or freezing in cold weather. The coolant system also helps prevent corrosion in the engine by lubricating and cleaning the components. Without a properly functioning coolant system, your truck may suffer from decreased fuel efficiency, engine failure, and other costly repairs.

Signs your Coolant System Needs Repairs

At Quality Mobile Fleet Services, we understand the importance of timely coolant system repairs, which is why we urge our clients to look out for any signs of damage. Some of the signs that indicate your coolant system may need repairs include a higher-than-usual engine temperature, low coolant levels, strange noises, and discolored coolant. If you experience any of these signs, it is essential to bring your truck in for repairs to prevent further damage.

Our Truck Coolant Repair Services

We offer comprehensive truck coolant system repair services, including heavy-duty radiator repair, coolant replacement, and water pump repair. Our expert mechanics use state-of-the-art diagnostic tools to identify any issues with your coolant system accurately. We also use top-quality coolant fluids and parts to ensure your truck's engine runs smoothly for years to come.

Contact Us

Don't wait until your truck's engine is overheating or experiencing significant damage before contacting us for truck coolant system repair services. At Quality Mobile Fleet Services, we understand the importance of a healthy coolant system, and we offer quality repairs and maintenance services to keep your truck running at its best. Contact us today to schedule an appointment or learn more about our services.
619-900-6030

California’s Diesel Emissions Specialists: On-Site DPF Maintenance & More!

At Quality Mobile Fleet Services, we’re proud to be emissions specialists. We offer a range of on-site DPF maintenance services to help keep your operation compliant with emissions standards. This includes:

DPF Repair & Replacement

Whether your truck’s DPF is damaged or has reached the end of its life cycle, we're here to provide a reliable solution. We source and stock top-quality DPFs from reputable brands and provide a range of on-site and in-shop repair services for the entire emissions system, including gaskets and clamps. This will help prevent leaks that could lead to reduced efficiency or increased emissions.

DPF Forced Regenerations

Are your passive or active DPF regens not doing the job? Is your DPF lamp not shutting off? These are telltale signs that you need further action, as the soot buildup in your DPF is too high.
Using our specialized diagnostic tools, Quality Mobile Fleet Services can initiate and perform forced regeneration cycles on-site. This process overrides the soot accumulation calculated in your vehicle’s ECM, thus burning any excess (and stubborn) soot.

California’s Best DPF Cleaning Services

If a forced DPF regen isn't enough, our robust cleaning packages will do the job. Quality Mobile Fleet Services offers the best DPF cleaning services in California!
Our state-of-the-art DPF cleaning machine utilizes a combination of the Air Knife technique, also known as bake and blow cleaning, and an advanced chemical solution flush to deliver exceptional results. If you want to go the extra mile, our Level 4 package adds ultrasonic cleaners to the process, which can clean your filter up to 98% of its original capacity.

Boat/Vessel DPF Maintenance

Do you own a boat or a dinghy? In addition to running a similar engine as commercial trucks, marine vessels also have an equivalent DPF system. That’s why Quality Mobile Fleet Services offers DPF maintenance, including DPF cleaning and forced regens, for a wide variety of boats. If your boat's DPF is completely clogged with soot, give us a call!

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At Quality Mobile Fleet Services, we pride ourselves on providing high-quality truck DPF repair, replacement, cleaning, and forced regeneration services to our customers in San Diego, California, and the surrounding areas. 

Frequently Asked Questions (FAQ)

How Do I Know My DPF Is Clogged?

It is essential to keep an eye out for signs that your DPF may be clogged, including reduced engine performance, reduced fuel efficiency, turbocharger issues, and the illumination of warning lights on your dashboard. If you notice any of these signs, it is essential to have your DPF checked by a professional as soon as possible.

How Does a DPF Work?

DPFs (Diesel Particulate Filters) were created out of necessity—as emissions standards became more and more strict, truck manufacturers had to think of a solution that wouldn't undermine truck performance.
DPFs are on the frontlines of lowering harmful emissions by trapping and removing over 80% of NOx particles, which can cause serious damage to the engine and the environment. Despite your DPF’s passive automatic regeneration cycle that burns off soot at frequent intervals, DPFs can become clogged, which can reduce engine performance and cause other problems with your aftertreatment system.

How Diagnostics Help You Save Money

Proper truck diagnostics can help you save money in the long run. By identifying issues early on, and prioritizing which issues need to be fixed first, you can avoid costly breakdowns and repairs down the road. Diagnostics can also help you avoid lost productivity and downtime, which can have a negative impact on your bottom line.

Our Diagnostics Service

At Quality Mobile Fleet Services, we have dealer-level OEM diagnostics technology, which allows us to run all fault codes and find out what problems your trucks are experiencing—whether you have a “check engine” light or transmission issues, we have you covered. Our team of skilled mechanics can quickly diagnose any issues and provide you with a comprehensive report detailing any necessary repairs. This allows us to get your truck back on the road quickly and efficiently.

Unparalleled Electrical Repairs`

Electrical issues are one of the biggest problems commercial trucks face, and they can be particularly challenging to diagnose and repair—a dead battery, malfunctioning glow plugs, fuel pump issues, ECU problems, or headlights that don’t light up are all common problems operators run into on the daily. Whatever it may be, Quality Mobile Fleet Services has you covered with our comprehensive truck electrical repairs in San Diego, California. 

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If you need diagnostics or truck electrical repair in San Diego, California, contact Quality Mobile Fleet Services today. Our team is dedicated to providing you with fast and reliable service, so you can get back to business as usual.
619-900-6030

Driveline Repairs Are More Important Than You Think

Owner-operators and fleet managers often overlook truck driveline repairs, but they play a significant role in maintaining the performance and safety of your vehicle. According to industry experts, driveline repairs are one of the most crucial aspects of a successful truck operation. The driveline is responsible for transmitting power from the engine to the wheels, which means any issues with the driveline can cause a variety of problems, such as decreased fuel efficiency, vibrations, and even accidents. Additionally, driveline repairs can improve the overall lifespan of your vehicle, preventing costly repairs and replacements down the line.

Signs your Driveline Needs Repairs

There are several signs that your driveline may need repairs, and it is essential to address these issues as soon as possible. These include unusual noises or vibrations while driving, difficulty shifting gears, and decreased fuel efficiency. Other signs of driveline problems may include clunking or banging noises, a shuddering feeling while accelerating, and excessive wear on tires.

Our Driveline Repairs

At Quality Mobile Fleet Services, we offer a range of truck driveline repair services to keep your fleet running at its best. We can repair or replace your driveline's U-joints and clamps, balance your driveline to prevent vibrations, and replace other components such as driveshafts, differentials, and axles if necessary. We also offer regular preventive maintenance services to help prevent future driveline problems and keep your driveline lubricated.

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If you need reliable and professional truck driveline repair in San Diego, California, look no further than Quality Mobile Fleet Services. Contact us today to schedule an appointment or learn more about our truck driveline repair services.
619-900-6030

How Does an EGR Work?

The EGR system works by recirculating a portion of the engine's exhaust gas back into the combustion chamber, reducing nitrogen oxide emissions. The EGR valve controls this process, allowing the correct amount of exhaust gas into the combustion chamber. However, over time, the valve can become clogged with carbon deposits, leading to reduced performance and fuel economy. If you notice a loss of power or acceleration, rough idle, or increased emissions, it may be time for an EGR valve replacement.

Signs of a Failing EGR Cooler

Another component of the EGR system that can fail is the EGR cooler. The EGR cooler cools the exhaust gases before they enter the engine, reducing the engine's combustion temperature and preventing engine damage. Signs of a failing EGR cooler include overheating, coolant leaks, and decreased engine performance. If you notice any of these symptoms, bring your vehicle to our mechanics for an EGR cooler replacement.

Our EGR Repairs

At Quality Mobile Fleet Services, our experienced mechanics provide EGR repairs and replacements, including EGR valves and EGR coolers. We use state-of-the-art equipment and techniques to diagnose and repair your EGR system quickly and efficiently, minimizing downtime for your vehicle. With our on-site repair services, we can provide convenient and cost-effective solutions to keep your diesel truck running like new.

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Don't ignore the signs of a failing EGR system. As a fleet manager or owner-operator, regular maintenance and prompt repairs of your vehicle's EGR system can improve fuel efficiency, reduce emissions, and extend the life of your diesel engine. Contact Quality Mobile Fleet Services in San Diego, California, for all your EGR repair needs.
619-900-6030

The Benefits of Engine Rebuilds

If your semi-truck's engine is experiencing significant wear and tear or has broken down, you may be wondering whether to replace or rebuild the engine. While replacing the engine may seem like a more convenient option, rebuilding the engine can offer a range of benefits. Engine rebuilds are generally more cost-effective than engine replacements and can extend the lifespan of the engine by replacing damaged parts with new ones, ultimately reducing the risk of future breakdowns. Additionally, rebuilding an engine can help to improve its overall performance and fuel efficiency, making it a worthwhile investment for your truck.

Common Diesel Engine Issues

Diesel engines are known for their durability, but they still experience common issues that need attention. These issues include problems with the fuel system, such as a clogged fuel filter or fuel injectors, problems with the exhaust system, such as a faulty turbocharger or EGR system, and issues with the engine's electrical system, such as a failing starter or alternator. Our team of diesel engine repair specialists has the knowledge and expertise to diagnose and repair these issues, getting your truck back on the road in no time.

Our Engine Repairs

At Quality Mobile Fleet Services, we offer a wide range of diesel engine repair services for diesel engines of all makes and models, including Cummins, Detroit, PACCAR, and Volvo. Our skilled mechanics use state-of-the-art diagnostic tools to identify issues and perform repairs that are necessary to restore your engine's performance to its optimal level. We perform a variety of diesel engine services, such as replacing damaged parts, rebuilding engines, and performing routine maintenance, such as oil changes, filter replacements, and tune-ups.

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If you’re experiencing any issues with your diesel engine, bring your truck to Quality Mobile Fleet Services in San Diego, California. Our team of diesel engine repair specialists will diagnose and repair your engine, and we’ll provide the best course of action for your operational goals. Contact us today to schedule an appointment for your semi-truck engine repair or rebuild needs.
619-900-6030

Keep An Eye Out On Your Exhaust System

When it comes to truck exhaust systems, there are several important factors to consider. Diesel engines generate more particulate matter, nitrogen oxides, and sulfur oxides than gasoline engines, making their exhaust systems more complex, and hence, more difficult to spot problems. Regular maintenance of your truck's exhaust system can help to avoid unnecessary breakdowns, improve fuel efficiency, and reduce emissions.

Signs of a Faulty Exhaust System

As a fleet manager or owner-operator, it's important to be aware of the signs of a faulty truck exhaust system. Some common indications of a malfunctioning truck exhaust system include excessive noise, a decrease in fuel efficiency, and visible rust and corrosion. If you notice any of these symptoms, it is essential to have your truck exhaust system checked and repaired by a professional mechanic.

Our Truck Exhaust Repair Service

At Quality Mobile Fleet Services, we offer a wide range of truck exhaust system repairs, including rust and corrosion welding repairs, muffler replacements, and more. Our experienced mechanics use state-of-the-art equipment to quickly diagnose and repair any issues with your truck's exhaust system. We understand that time is money in the trucking industry, which is why we strive to provide efficient and timely services to keep your trucks on the road.

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Quality Mobile Fleet Services is the go-to provider of truck exhaust repair services in San Diego, California. With our commitment to quality and customer satisfaction, you can rest assured that your truck's exhaust system is in good hands. Don't hesitate to contact us today for all your truck exhaust repair needs.
619-900-6030

How Hydraulic Systems Work

To keep your hydraulic system running smoothly, it's essential to understand how it works. The hydraulic system consists of several components, including the hydraulic fluid, pump, valves, and actuators. Whenever pressure is needed, hydraulic fluid is pumped through a series of valves and into the actuators, which then apply force to the load. This process creates hydraulic power, which is what fuels the world of specialized work equipment across numerous industries. At Quality Mobile Fleet Services, we understand the importance of maintaining your hydraulic system to prevent costly downtime and reduce maintenance costs.

Our Hydraulic Systems Repair

Our hydraulic repair services cover specialized work equipment and hydraulic brakes, including cylinder repairs, hydraulic pump repairs, and hydraulic motor repairs. We use high-quality parts and tools to ensure the best possible results for our customers, and we’ll work with you to create a hydraulic systems maintenance plan that fits your schedule.

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If you notice any issues with your hydraulic system, including leaks, slow operation, or unusual sounds, it's essential to have it inspected and repaired by a professional. At Quality Mobile Fleet Services, we offer reliable and efficient hydraulic repair services for your truck. Contact us today to schedule an appointment for hydraulic repairs or any other truck repair services you may need.
619-900-6030

What’s The Role of Engine Oil?

Engine oil is the lifeblood of your truck's engine, and it performs several critical functions, including:

• Lubricating moving parts.
• Reducing wear and tear.
• Cooling the engine by transferring heat away from the combustion chamber. 
• Cleaning the engine by removing contaminants and depositing them in the oil filter.
• Protecting the engine from corrosion.

All in all, setting up a proper engine oil maintenance regime is what can set you and your business up for success. Well-oiled diesel trucks tend to last longer on the road than their counterparts, without experiencing as much downtime.

The Importance of Filter Maintenance

Filter maintenance is equally important to your truck's health. Filters trap impurities and debris that would otherwise circulate in the engine, causing damage. There are various filters that you should keep an eye on, including air, fuel, oil, and hydraulic filters, and it's essential to choose the right filters for your truck and replace them at the recommended intervals. Our team at Quality Mobile Fleet Services can help you select and install the right filters for your truck.

Why Fluids Need TLC

Fluid maintenance is also crucial to your truck's proper functioning. The most common fluids that require regular maintenance are transmission fluid, coolant, brake fluid, and power steering fluid. These fluids need to be topped up and replaced at manufacturer-recommended intervals to ensure optimal performance and prevent expensive repairs.

Our Oil & Fluid Service

At Quality Mobile Fleet Services, we provide quick and efficient truck oil changes and fluid services that will get you in and out in no time. We use high-quality products that meet or exceed manufacturer recommendations, which will help extend the life of your truck. Our team of experienced mechanics will perform a thorough inspection of your truck's fluid systems and recommend the best course of action.

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Need a trusted partner for your oil and fluid maintenance? Give Quality Mobile Fleet Services a call!
619-900-6030

Leaf Spring vs. Air Suspensions

Leaf springs and air suspension systems are two common types of suspension systems for heavy-duty trucks. Leaf springs are made of several layers of metal strips that provide support to the truck's weight. Air suspension, on the other hand, uses airbags to support the truck's weight. While both suspension systems have their advantages, there is a debate over which one is better. Some experts believe that leaf springs are more durable and require less maintenance, while others prefer air suspension for its better ride quality and load-carrying capacity.

Identifying Suspension Wear

At Quality Mobile Fleet Services, we’re keen on identifying and addressing suspension wear before it becomes a major problem. Signs of suspension wear include uneven tire wear, excessive bouncing, pulling to one side, and reduced stability. Our mechanics are trained to inspect your suspension system thoroughly and identify any signs of wear or damage.

Our Truck Suspension Repair Service

Our truck suspension repair service includes airbag and air spring replacement, equalizer rebushing and replacement, hanger replacement, shock replacement, spring replacement, torque arm rebushing and replacement, and walking beam rebushing and replacement. Our services are quick and effective, getting you in and out in no time. We use high-quality replacement parts and follow manufacturer recommendations to ensure your suspension system performs at its peak.

Mobile Suspension Repair

At Quality Mobile Fleet Services, we understand that downtime is costly for your business. That's why we offer our services at your location, reducing your downtime and keeping your trucks on the road. Our mobile diesel mechanics have the experience and equipment necessary to get the job done right the first time.

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If you're experiencing suspension issues or simply need routine maintenance, contact Quality Mobile Fleet Services for top-quality truck suspension repair services. We're located in San Diego, California, and we're committed to keeping your fleet running smoothly.
619-900-6030

Signs of Transmission Problems

Some of the signs of transmission problems include slipping gears, delayed engagement, grinding noises, and fluid leaks. These symptoms may indicate issues with the transmission fluid, solenoids, or other internal components, and if left untreated, they can lead to complete transmission failure. According to industry experts, replacing a heavy-duty truck transmission can cost anywhere from $1,500 to $4,000, not including expensive labor costs—this is why it’s important to get your transmission problems addressed ASAP.

Signs of a Failing Clutch

A failing clutch can also cause significant problems with your truck's transmission. If you’re experiencing slipping gears, difficulty shifting, or a burning smell while out on the road, it’s time to take your truck to a truck transmission repair shop near you. Better yet, we suggest you perform regular inspections to detect issues before they cause further damage, potentially saving you from costly repairs down the line.

What We Offer

At Quality Mobile Fleet Services, we provide comprehensive transmission and clutch repair services. Our mechanics will start by analyzing the fluid to determine if there are any contaminants or signs of wear. They'll also check the transmission DTCs (diagnostic trouble codes) to pinpoint the root of the problem accurately. Once they have identified the issue, they'll perform the necessary repairs, which may include replacing the transmission or clutch if needed.

Quick & Efficient Service

Our goal is to get your truck back on the road as quickly as possible, which is why we prioritize quick and efficient service. We understand the importance of minimizing downtime, which is why we'll work quickly and effectively to get your truck back in top condition. We also use high-quality parts for all of our repair/replacement jobs, and we stay up to date with industry best practices and training.

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From transmission and clutch fluid analysis to repair and replacement, Quality Mobile Fleet Services has your back. Don't let transmission or clutch issues sideline your truck—contact us today for expert service you can count on.
619-900-6030