Sluggish. Squealing. Unreliable. Vibrating. If any of these descriptors fit your vehicle’s recent behavior, it just might be trying to tell you something – like it’s time for a tune-up.

Today’s vehicles differ significantly from their decades-old brethren that required a tune-up every 10,000 or 20,000 miles. With newer vehicles, it’s increasingly common for manufacturer-recommended service intervals to stretch to 100,000 miles before certain maintenance items, such as replacing the spark plugs, should be completed. 

No matter what type of fleet vehicles or commercial trucks you maintain, the fuel system on your diesel is an integral part of keeping you on the road. Gas systems are pretty simple - there’s basically just a pump that pushes gasoline to the injectors. Diesels are a bit more complicated.

Spark plugs have been around since the beginning, and play as important a role now as they did a hundred years ago. It’s a good idea to replace them as a set at regular intervals, but sometimes one will go bad sooner than the rest for one reason or another. How do you know if you have a bad spark plug? Here are some indicators, from Zylstra Automotive & Diesel in Visalia, CA.

No matter what type of car, truck, or SUV you drive, maintenance is the key to giving your engine a long life. At Zylstra Automotive & Diesel in Visalia, CA, we focus on keeping your engine running strong.

With all fleets and commercial vehicles, there comes a time you have to decide - do we fix this vehicle, or replace it? At Zylstra Automotive & Diesel in Visalia, CA, we’re here to help you figure that out.

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 Zylstra Automotive & Diesel in Visalia, CA.

Here at Zylstra Automotive & Diesel in Visalia we often do diagnostics and sometimes the problem is obvious after hooking the car up to the computer and reading the codes.  However, sometimes it isn't obvious during a test drive or after hooking it up to all those computer programs!  You know there is a problem and a Check Engine Light is on with the fleet customer telling you the car has been having issues starting and the light has been going off and on depending on several factors.  No pattern, no simple answer but the problem becomes obvious when you start following the "threads of the issue" thanks to all that ASE Technician training.

We see this with our fleet customers, our regular Visalia 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!

It’s a busy morning, you’ve finally gotten everyone where they need to be and you’re just pulling into the parking lot at work when your dash light starts glaring at you. Your check engine light shines bright, but you have no idea why. Whether you can tell a difference in the way your car, truck, or SUV is running, your car is trying to tell you something. At Zylstra Automotive & Diesel in Visalia, CA, we can help!

On modern vehicles, the PCV system (Positive Crankcase Ventilation System) is essential to ensuring your car or truck is ready to go when you are and remains a long-lasting, reliable vehicle. It’s much more than just emissions control - your PCV system serves multiple purposes and is quite interesting! How does it work, and what are those purposes?  Here at Zylstra Automotive & Diesel in Visalia, CA, we have those answers for you!

Tune-ups are an important and frequently neglected aspect of automotive care. Most drivers don’t really consider the mechanical condition of their car, so long as nothing is wrong with it. However, if a vehicle is tuned-up and maintained correctly, many mechanical failures (and expenses) will be avoided altogether. So whne is the right time to get a tune-up?

If you drive a Jaguar, BMW, Land Rover, Porsche, Subaru, or other luxury or performance vehicle, the last thing you want to do is start your engine to be met with the sound of a screeching drive belt. Fortunately, we at Zylstra Automotive & Diesel in Visalia, CA have you covered.