At Craig Johnson Automotive in Rowland Heights, CA, it’s important to us that you see the value in the work we do. Over the course of the past decade, depending on what type of car, truck, or SUV you drive, it may seem like oil changes have gotten more expensive, and there’s a lot of differentiation in pricing at different locations. What’s going on?

At Craig Johnson Automotive in Rowland Heights, CA, we’re in the business of quality. Quality work, quality parts, and quality service keep a business going. Here is a quick rundown on why it’s important to install components that will perform reliably, and keep you taken care of in the event that they don’t.

When you think about diesel engines, you probably think about large trucks and machinery, and maybe a few oddball cars over the years.  But how long has diesel really been around, and why is it used the way it is today? Craig Johnson Automotive in Rowland Heights, CA has the answers you need to become more in-tune with your diesel truck and engine. 

Every car, truck, van, and SUV on the road today has headlights. However, you've probably noticed an increase in different types of headlights in more recent years - gone are the days where every vehicle on the road had the same bulb. Here is some information on headlights, from Craig Johnson Automotive in Rowland Heights, CA.

At Craig Johnson Automotive in Rowland Heights, CA, our goal is to keep your car, truck, or SUV reliable and in great shape. To us, it’s important that we’re paying attention to both your needs and the needs of your vehicle. When it comes to oxygen sensors, sometimes it seems a bit nebulous on what they actually do and why they’re important; we’re here to clear things up for you.

At Craig Johnson Automotive in Rowland Heights, CA, it’s important to us that your car, truck, or SUV is ready for any condition. Coolant flushes are an important part of getting your vehicle ready for winter - here’s why.

While fuel pump issues are common, they often get misdiagnosed. What is your fuel pump, how do you know if yours is bad, and what should you do about it? At Craig Johnson Automotive in Rowland Heights, CA, we are going to make sure that you are an informed driver so you know what to look for and what you should do about it.

Keeping your fuel system maintained will prevent premature parts failure and poor running conditions. Here at Craig Johnson Automotive we have tips on the important aspects of diesel fuel system maintenance, to keep your diesel fleet trucks running smoothly - longer.

Air.Air in the system causes all kinds of issues, from hard starting, poor running conditions, or an engine that won’t run at all. If too much air gets in the system, the fuel pump won’t be able to deliver fuel, and the engine will stall, die, or fail to start.  Air enters the system via a leak or a bad seal - a deteriorated o-ring, worn component, faulty hose, or otherwise. Here we inspect your lines and connections to ensure they are in good shape and track down any leaks we notice air in the system.

Since the first automobiles, there have been radiators. Every liquid-cooled engine on the road has, and has always needed, a radiator; without it, the engine would overheat in no time, causing catastrophic engine failure. While the efficiency of radiators, the materials they’re made out of, and the shape and size of them have changed over time, radiators haven’t actually changed much over the last century or so. At Craig Johnson Automotive we know that even though radiators generally last a long time, they do occasionally fail. When your radiator is malfunctioning you can trust our technicians to repair yours and get you back on the road. 

If you’re running a truck (or trucks) without an auxiliary oil cooler, it may be something you want to consider. Here’s some information on auxiliary oil coolers, what they are, and why they’re a great upgrade, from Craig Johnson Automotive in Rowland Heights, CA.

We see this with our fleet customers, our regular Rowland Heights car pool drivers and our diesel truck drivers so it isn't just one type of driver that ends up with a nightmare on their hands costing thousands of dollars to repair, asking about the costs of a JASPER replacement engine!  The fact is your driving habits and maintenance habits can easily avoid this issue!  6 EASY STEPS - Service, Tires, Don't Ignore Service Engine Lights, Keep it Clean & Stop Driving Crazy!

There have been a lot of technological advancements, and breakthroughs in efficiency to make modern cars, trucks, and SUVs so much more fuel-efficient than their counterparts. While engine design certainly plays a huge role, automatic transmissions have come a long way as well, contributing greatly to the gas mileage of your vehicle. From Craig Johnson Automotive in Rowland Heights, CA, here are some ways transmissions have changed to meet the demands of fuel efficiency.

At Craig Johnson Automotive in Rowland Heights, CA, we’re all for additions that make your trucks last longer and work better. Here’s some info on the benefits of undercoating, and why you might want to consider it for your truck.