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Common Signs of Transmission Failure Whether you have a manual vehicle or an automatic, you rely on the transmission every time you drive. Transmissions work by shifting gears to change the speed-to-torque ratio dynamically; this allows power from the engine to be properly distributed to the wheels based on how fast your vehicle is traveling. …

Q&A: Get Answers to Some of the Most Common Questions About Motor Oil Modern engines are significantly different than those manufactured even 30 years ago. They’re more powerful, require less fuel, and need less maintenance. Although less maintenance is a good thing for drivers, it also means that regular oil changes have become more critical…

The Importance of Dashboard Warning Lights All drivers are familiar with the low fuel warning light on their dashboard; even if you wait until the last minute to hit the gas station, you know it’s not a warning light to ignore! However, when it comes to other warning dashboard warning lights, many drivers choose to…

Your brakes are one of the most important safety components of your vehicle. As such, you should never ignore or put off brake repair. When your brakes aren’t working properly, you risk your safety, as well as everyone else’s safety on the road.  Could you benefit from brake service? Johnny’s Auto Service in Covina has…

When warm weather hits, there’s nothing like turning on the air conditioner and feeling that cool blast of cold air chase away the heat! However, your air conditioning system can only cool you down because of the refrigerant it uses. Although R134a refrigerant is common, most newer vehicles have made the switch to R-1234yf refrigerant….

COVID-19 is a very serious matter and one that none of us at Johnny’s Auto take lightly. While we’re happy to be an essential business during these unprecedented times, we also know that you may have concerns about bringing in your vehicle. We understand – and can assure you that we’re taking every precaution to…

Flashing or reprogramming a car’s computer is one way to keep the vehicle’s engine control modules up to date. This is commonly done on vehicles 1996 and newer to make sure the microprocessors in the power train and fuel injectors are regulating the system properly. Cars tend to run better and more efficiently when their…

Staying on top of your vehicle’s maintenance services is crucial if want your car to run right. Unfortunately, we all have such busy lives it feels optional to spend time and money on our cars when nothing seems to be wrong. This is why maintenance so often gets the backseat. But the truth is that…

Your car isn’t that much different than any other family member. You’ve got to regularly show it some love to let it know that you care. A smile is nice, a hug is awkward, but the best way is to keep up with your car’s regular maintenance schedule. Every vehicle is slightly different, and you…