Many San Diego car owners have probably wondered: "What's the harm in putting off replacing an engine air filter? The answer is that not replacing it could cause your Mass Air Flow (MAF) sensor to fail. This expensive sensor is situated between your engine air filter and your engine. Dirty air filters are a leading cause of mass air flow sensor failure – and these babies can cost several hundred dollars to replace in San Diego.Change your vehicle air filter at John's Automotive Care when it's dirty. Your vehicle engine will thank you.Give us a call. John's Automotive Care6267 Riverdale StSan Diego, CA 92120619-280-9315http://www.johnsautomotivecare.com    

Most San Diego drivers know something about preventive maintenance on a vehicle. We know we should routinely replace the oil and wiper blades and other fluids. But have you heard of a PCV valve ? This little car part needs to be replaced regularly or it can cause some serious problems in your vehicle engine.PCV stands for Positive Crankcase Ventilation. The crankcase holds your motor oil and is located at the bottom of your engine.When fuel is burned in your engine, it produces waste gases that are mostly vented out through your exhaust system. But some of these gases push their way past the pistons and into the crankcase. There, these gases can mix with motor oil to produce oil sludge, which can damage vehicle engine parts through corrosion and by clogging engine passages. San Diego vehicle owners should be advised that if the engine is running at high speeds, these gases can also cause pressure inside the crankcase to build up. This pressure, in turn ... read more

Some people love 4x4 vehicles, the true 4-wheel drive works of engineering like Jeeps and 4x4 pickups that allow you to seemingly go anywhere on the planet. You can climb up a 40-degree rock trail with some planning and skill (always careful to protect the environment, of course), or you can get through the deepest snow. But with that added capability comes additional complexity, drive-train components and other systems that less capable vehicles don't have.  And that is why when it comes to 4x4s, you have to maintain them a little differently from those vehicles that spend their lives on pavement.  Here are some of the key things to keep an eye on: Transfer case—This transfers power from the engine to the wheels.  A transfer case has fluid in it that needs to be changed at intervals recommended by the manufacturer.  Your service advisor will let you know how often that is and will keep track of your service dates.  You will need to make sure the transfe ... read more

You've heard that expression, change is good.  When it comes to your vehicle's oil, change is not only good, it's vital for the health of the engine.  But there's one question that puzzles many drivers: how frequently should my vehicle's oil be changed? There is not one simple answer, but here are some guidelines that will help. It used to be pretty much a rule of thumb that vehicles got their oil changed once every 3 months or 3,000 miles/5,000 kilometers.  But times have changed.  Oil formulations have gotten better and engine designs have made longer oil change intervals possible.  Most experts advise you to read the recommendations that come from the manufacturer that designed and built your vehicle.  Their designers and engineers know more about your vehicle than anyone else.  They spell out their recommended oil change interval and type of oil in your owner's manual.  Many automakers say you can go at least 5,000 miles/8,000 kilometers betw ... read more

If you've been paying attention, you've noticed that vehicle engines are getting more and more powerful in San Diego. At the same time, they are getting better and better fuel economy. I've gotta tell 'ya, most of that's because of technological advances in transmissions. To get a better understanding of why that is, let's talk bicycles.You've probably seen plenty of cyclists on San Diego roads. Perhaps you ride yourself. Then you know that a cyclist's cadence is the number of times per minute he or she pedals. The ideal pedal speed is the zone where they can most efficiently generate power over a sustained period of time. The experienced CA cyclist uses her gears to keep her pedal speed in the ideal zone whether she's climbing a hill, cruising on a flat stretch or killing a downhill.Think of it this way: if you have a 1-speed bike, you really have to pump hard to get up to speed. Your top speed is limited by how fast as you can pedal. And if you're climbing a steep C ... read more

When asked, most people think they are good at multi-tasking. Scientific studies, however, reveal that only around 2% of the population can truly demonstrate the capacity to effectively multi-task. For the rest of us who are not so biologically wired, no amount of practice can increase our effectiveness at multi-tasking. Turns out, multi-tasking is almost a superpower. Think of fighter pilots: capable of maintaining their orientation in three dimensional space and performing specific and highly complicated functions while accessing life threatening situations and coming up with an appropriate response. Admit it – you can’t do that. Yet when it comes to driving, we seem to think we are very capable of safely operating a motor vehicle with myriad distractions. 77% of young adults feel somewhat confident that they can safely text and drive while 55% claim it’s easy to text and drive. Can they possibly be right? Let’s look at some statistics. Nearly 23% of all accid ... read more

  Your vehicle alternator doesn't get enough credit. Though your battery gets your engine started, after that – it's all about the alternator.  Driving around San Diego is a lot of work for your alternator, and as upgrades such as heated steering wheels, cooled seats, stability control and lane departure warning become more common, it will have to work even harder. Eventually this workhorse just wears out. When it does you have no choice but to order an alternator replacement because your vehicle won't run without one. Come see your friendly and professional service advisor at John's Automotive Care to learn more. John's Automotive Care6267 Riverdale StSan Diego, CA 92120619-280-9315http://www.johnsautomotivecare.com

Most auto manufacturers recommend an interval for an air conditioning system inspection. The inspection uncovers leaks, worn hoses and assesses the condition of the other components.Environmental laws in some around San Diego require leaks to be repaired before refrigerant can be added. Also some parts manufacturers require other components to be replaced along with certain failed parts in order to maintain the new part warranty. This is because a given failure may be the result of another worn or damaged part that will, if not replaced, prematurely damage the new component.John's Automotive Care in San Diego is fully equipped to restore your flow of cool air.John's Automotive Care6267 Riverdale StSan Diego, CA 92120619-280-9315http://www.johnsautomotivecare.com  

Your parents probably taught you to have common sense. When it comes to your vehicle, common scents can also come in handy. Different smells may tell you about some conditions in your vehicle that need attention. For example, you know what rotten eggs smell like.  If you smell them around your vehicle, it means sulfur can't be far away. Here's a surprising fact: Gasoline has a little sulfur in it.  There's a device in your exhaust system that's supposed to convert it to something that doesn't pollute the atmosphere. That device is a catalytic converter.  If you are smelling rotten eggs, maybe your catalytic converter is wearing out.  But it could also be a problem with your fuel injectors.  Either way, something's rotten that should be repaired. Ever smell something sweet around your vehicle, maybe a little like pancake syrup? If you sniff out a little sweetness just when your engine is warming up or after you shut off your engine, you might be smelling some co ... read more

Warm weather or cold, San Diego drivers still need to think about their vehicle's air conditioning. Most San Diego people don't service their air conditioning until after it fails. At John's Automotive Care, we can advise you on your vehicle manufacturers preventive maintenance schedules for air conditioning service, just as we do for transmission service, oil changes and so on. Maintaining your air conditioning system means that you always have enough refrigerant to properly do the job. Small leaks in the vehicle's air conditioning system allow the refrigerant to escape and the system can't cool the air as well. We see that a lot at John's Automotive Care in San Diego.The refrigerant also contains oil that lubricates air conditioning components and keeps the seals resilient. Low refrigerant and lubricating oil means that the air conditioning parts will wear out prematurely, and all San Diego vehicle owners know that air conditioning re ... read more