All modern San Diego vehicles come with fuel injection systems, so it's a topic San Diego drivers need to know something about. The mighty fuel injector is a valve that delivers the gas or diesel fuel to the right place, in the right amount at the right time—to be mixed with air and burned in the engine.So how many fuel injectors does your vehicle have? There's one for each cylinder. So four, six or eight for most folks in San Diego, CA. Some vehicles have 10 or 12 cylinders. The engine control computer makes adjustments to the fuel injector as it monitors the engine and other sensors. Fuel injectors are a pretty high-tech.John's Automotive Care can help San Diego drivers with a fuel injector cleaning service. What's the benefit? In order to work right, the fuel injectors have to deliver the fuel at a precise pressure at a very precise time. It's important that the fuel is sprayed in a particular pattern as determined by the engine design.Over time, varnish ... read more

Starting in 1996, John's Automotive Care service technicians have been able to use a standardized diagnostic system to help determine what is wrong with a vehicle. This diagnostic system works in tandem with the Engine Control Modules for each vehicle's engine. The Engine Control Module is a computer that monitors and controls many engine functions.Sensors throughout a vehicle send readings to the Engine Control Module. These readings help the computer make adjustments in various vehicle systems to allow for constantly changing driving conditions and even to compensate for minor problems. However, if the computer encounters a situation it can't adjust for, it turns on the Check Engine light. (The Check Engine light is called the “service engine soon” light on some vehicles.)If the Check Engine light is burning steadily, it indicates a problem that needs to be taken care of soon. If it is flashing, however, the vehicle needs ... read more

Screeching tires, crunching metal – it's an accident! If you've ever been in a car accident in San Diego, even a minor one, you know how upsetting it can be. It's hard to think straight and know what to do.Let's review what San Diego drivers should do in case of an accident:When an accident occurs, you should always stop. Leaving the scene of an accident in San Diego is considered a crime - even if it's not your fault. And hit and run penalties are fairly severe, possibly resulting in steep fines, loss of your CA driver's license or even jail time.Your jurisdiction may require that you try to help someone who is injured by calling for help or performing first aid if you are able. Warn other motorists by putting out flares, using your flashers or lifting your hood. Call San Diego emergency services as soon as possible. Tell the operator if medical or fire help is needed.You should always file a police report. It's tempting to skip this if everything seems to ... read more

Your cooling system is very important. It circulates coolant through the radiator and your engine to protect your vehicle from overheating. There are five main components to the cooling system: the radiator the radiator cap the hoses the thermostat the water pump The water pump's like the heart of your cooling system, circulating the fluid throughout your vehicle. It's a small pump that's driven by the engine; usually by belt, but sometimes by a chain or gear.The water pump only operates when the engine's running. Water pump failure is pretty routine. We see it often at John's Automotive Care. Some start failing at around 40,000 miles/64,000 km, but most fail by 100,000 miles/160,000 km. Consult your owner's manual or friendly and knowledgeable service advisor at John's Automotive Care to see what's recommended.Since a water pump either works or it doesn't, you need to change it when it fails. Water pumps fail in one of two ways: the bearings fai ... read more

There are a lot of things in life that San Diego residents have to do on a regular basis. We wash dishes every day, do our laundry and mow our lawns every week, and pay the bills every month. We should go to our San Diego dentist twice a year and see our doctor for a check-up once a year. When we don't stay on schedule with these routines, it can lead to embarrassing, painful or expensive consequences. Scheduled maintenance is also part of good vehicle care. San Diego drivers should take their vehicles in regularly for a good check-up. But many folks struggle to remember — or actually even ignore — this auto advice. When it comes to our vehicles, we're more likely to listen to, “If it ain't broke, don't fix it,” than, “An ounce of prevention is worth a pound of cure.” Yet it is the second adage that is the more applicable one.Regular brushing treatments prevent cavities. Filling a cavity prevents a more pa ... read more