Your vehicle's engine makes a lot of heat when it's powering you down the road, so it needs a way to get rid of that energy.  That's why your vehicle has a cooling system, complete with a radiator and one or two radiator fans, also called cooling fans.  Those fans make sure air keeps moving across the radiator so that the heat stored in the coolant can be dissipated outside when the vehicle is stopped or not traveling fast. Radiator fans can develop problems and can stop working properly or stop working altogether.  Some signs to look for? If you're driving slowly and idling and you see your temperature gauge moving toward the red or hot zone, that could spell trouble.  Another thing you may notice when a radiator fan is failing is that there may be a loud noise coming from the engine compartment. There are two types of radiator fans.  One is mechanically connected to the engine and uses the engine's rotational energy to turn it.  The other is an electric ... read more

If you keep up on technology trends, then you may be intrigued about synthetic motor oil.  It was introduced in the 1960s when Mobil came up with it.  Mobil's oil was different from conventional motor oil because it was first broken down to its basic molecules.  Then, Mobil removed additional impurities from crude oil and "tailored them to the demands of modern engines." Synthetic oil is becoming more popular now because of its advantages over conventional oil. It's more resistant to sludge forming in an engine.  It is more efficient and protects engines better under temperature extremes.  Because it allows drivers to go longer between oil changes, many feel it's more convenient.  The downside is that synthetic oil is more expensive, but because it doesn't need changing as often, the cost can be pretty comparable in the long run. Those who drive high performance vehicles (think Audi, BMW, Mercedes) are already using synthetic oil if they're following their ... read more

When the leaves fall, you might take a sightseeing trip to see them at peak color.  Or you may simply live in a spot where there are a lot of trees.  When those leaves get wet, you'd be surprised to learn just how slippery they can be.  We all know ice is slippery to drive on.  What causes tires to slip on ice is a thin layer of water that comes between the road and your tires.  Wet leaves can have the same effect.  The surfaces of leaves are super slick when they're dry, even worse when you add a little moisture.  There's one other thing about leaves.  They are smaller than each tire's footprint, so your tread grips the pavement with uneven traction. One study showed that your stopping distance can more than double on a surface covered with wet leaves when compared to that same road when it's dry.  Double! That can spell trouble.  So if you find yourself heading into an area with wet leaves on the road, slow down before you get into a ... read more

San Diego residents know that engines burn fuel to operate. Fuel is pumped from your fuel tank to your engine where it is squirted—or injected—into your engine's cylinders. This is the function of the fuel injectors.There are two ways to inject fuel into an engine. Fuel needs air to burn, so in the first method, fuel is injected into a port and allowed to mix with air—and before it is drawn into the cylinders. In the second method, fuel is injected directly into the cylinders and mixes with air after it enters the engine.Direct injection engines burn fuel more efficiently than conventional engines. Some models can deliver the power of a V8 with the economy of a V6.For example, in one family of engines, the conventional version (a V6) delivers about 250 horsepower. The direct injection version delivers over 300 horsepower and gets about the same . The turbocharged version delivers 350 horsepower.Why the big difference in power? Direct ... read more

It's one of those things that can happen on a multi-day road adventure or a quick trip to the grocery store.  You hit a pothole, go too fast over a speed bump, nail a curb.  When it happens, you think, "I wonder if that was hard enough to do any damage?"  But things seem ok and you continue on your way.  Keep in mind that any blow to your vehicle's suspension can throw it out of alignment.  It can be a hard knock from the road or from another vehicle, such as being involved in a minor accident.  When your suspension is out of alignment, it means that the wheels aren't all pointing where they should.  And after a while, it can make your tires wear unevenly and cause problems with steering and handling. Let's go back to that pothole or curb you hit hard.  Even though you think there was no damage done, if you wait until you see tire wear, you may need to replace all four tires, not an inexpensive proposition. That's why it's a good idea to make sur ... read more

Hello, San Diego residents. Let's talk fuel filters. Fuel filters clean the dirt, dust and debris out of your fuel. Both gasoline and diesel-powered engines have them. The fuel filter is located in the fuel line between the fuel tank and the engine.San Diego auto owners don't need to filter their fuel because it has lots of grit in it; they need to filter it because it has some grit it in. Any dirt is bad for your engine. The cleaner the fuel, the better your vehicle engine will run.Over time, the small amounts of rust, dirt and contaminants in your fuel settle out inside the fuel tank. After about five years, this can amount to a quite a bit of sediment. This means that as your vehicle ages, your fuel filter has to work harder to screen your fuel: more sediment in your tank means more potential for grit in your fuel.The harder your fuel filter works, the more often it needs to be replaced. Check with your owner's manual to find out how often it should b ... read more

Let's say you live in a cold climate where the snowy, icy weather challenges you to clear the salt and debris tossed up on your windshield.  You push your windshield washer switch expecting a good stream of fluid so the blades can wipe the glass clean. Yet nothing comes out.  Nada, zip.  What's going on? You know you filled up the windshield washer reservoir within the last week or so.  Well, there could be a few things causing your windshield washing system to fail.  One culprit? The hoses that are supposed to carry that fluid from the washer pump to the spray nozzles may be frozen, or maybe they're cracked and leaking. It could be the nozzles themselves are stopped up, either iced up or jammed full of debris.  Your windshield wiper/washer switch could be worn out or the electrical system may not be conducting power to the washer pump.  It's important that this system work properly, especially on days when the sun may be in front of you and your wind ... read more

Motorists in North America drive about 3 trillion miles/4.8 trillion kilometers every year. There are over 250+ million licensed drivers, and approximately 6.2 million accidents happen every year. Unfortunately, if we're going to drive vehicles, there are going to be accidents. Knowing what to do in case of an accident can help reduce the stress and cost of the situation. It can also protect you from false claims, incorrect judgments and unjust liabilities. Never leave the scene of an accident. This is a crime, even if the accident is not your fault. If you leave the scene, it is referred to as a “hit-and-run,” and the fines are steep in CA. You can even lose your driver's license or spend some time in jail. If someone has been injured in the accident, most laws require you to help them. You must call for help. If you can, you must also render first aid. Call 9-1-1 or get someone else to call 9-1-1 as soon as possible. Tell the operator if ... read more

Brakes really aren't optional equipment for San Diego drivers' vehicles. And taking care of them isn't optional either.A regular brake inspection is on every CA driver's vehicle maintenance schedule. At John's Automotive Care, our team will check your brake system and let you know if there are any problems. Of course, if you're having trouble with your brakes, get your car into your San Diego service center right away. And watch out for these problems: Low or spongy brake pedal Hard brake pedal A brake warning light that stays on Constantly squealing or grinding brakes Vibrations or clunking sounds when you apply your brakes There are two types of brakes: disc and drum. Disc brakes have a rotor that's attached to the axle. Calipers straddle the rotor, kind of like the brakes on a bicycle. Drum brakes are more common on back wheels. Pads, called shoes, push against the inside of the drum to slow the vehicle.There are several things that need to be serviced on ... read more

At John's Automotive Care, we occasionally see severe tire damage that could have been prevented with proper wheel alignment. During a John's Automotive Care alignment service, your vehicle is put on an alignment rack where the tires,steering and suspensionparts are inspected for problems. Then the alignment is charted and checked against the vehicle factory settings. Adjustments are made to bring the wheels back into alignment. This gets all four wheels moving in precisely the same direction.If you don't remember hitting a pothole, how do you know if your wheels are out? The most obvious sign is that your vehicle pulls to one side. Also, your steering wheel may not be centered when you're going straight. If you're in the habit of checking your tire wear regularly, you may notice the edges of one or more tires rapidly wearing down. You should have your San Diego auto service center look it over. Of course, if you've been in an ac ... read more