Rocklin and Sacramento Auto Repair

If your vehicle has an internal combustion engine, it depends on two things to make propulsion power for you to be able to motor on down the road: fuel and air.  The engine mixes the two in just the right proportion so that they can be ignited, creating a series of tiny explosions that are coordinated in such a way that your vehicle moves steadily ahead. One of the key parts to making sure that mixture of air and fuel is correct is a little tube that measures the amount of air that’s coming into the engine.  It’s called a Mass Air Flow sensor, or MAF sensor.  There are two wires in this tube, one of which is heated up with electricity and the other isn’t.  When the air flows over the heated wire, it cools.  When the temperature of the two sensing wires is different, the MAF sensor either increases or decreases the current to the heated wire to try to make it the same as the other wire. That’s sent to a small computer that tells the engin ... read more

It’s always more comfortable in your vehicle when you can control temperature and humidity in the cabin. Air conditioning, which is standard on most newer vehicles, is a vital part of that comfort, and a key component of that system is the condenser. The condenser converts the refrigerant gas into a liquid by cooling it down.  There are a few reasons the condenser can fail.  It can start leaking, which is usually caused by faulty seals and tubes, or debris from the road can damage it since it sits in a vulnerable spot at the front of your vehicle.   Another way your condenser can be damaged is when bits of metal are released after your vehicle’s air conditioning compressor fails and are sent into the condenser. In both cases, you will have to have the condenser replaced as well as other components that are part of the system. Here are signs that your condenser needs replacing.  When you turn on your air conditioning, it won’t make the air as cold a ... read more

When you’re driving and you hear a squeal or groan when you turn, it may be a sign your power steering pump is on its last legs.  The same is true if you feel your steering is slipping or doesn’t respond to your hands like it used to.   Precise, responsive steering is, of course, important when it comes to safe driving, so this is something you should have one of our technicians look at sooner rather than later.   There are different types of power steering pumps, and they all perform a similar function.  They make it easier for you to turn the steering wheel with little effort as the power steering system multiplies that force so you can precisely aim a vehicle that weighs thousands of pounds.   The type of power steering pump your vehicle has depends on the power steering system it uses.  One works by hydraulics, taking energy provided by belts driven by the engine which pressurizes power steering fluid to the wheels.  There are a lot of ... read more

Every day that goes by, our bodies get a little more wear and tear on them.  Our vehicles have the same issue.  The older we get and the farther we travel, certain parts start showing some wear.   Think of your hips. There are parts of our vehicles that are similar to them; just like hips allow your legs to pivot in several directions, your vehicle has similar parts called ball joints, and they connect your vehicle’s wheels to the suspension, allowing them to move together.  These ball joints get a good workout every time the vehicle is moving, especially on bumpy roads.   Usually, these joints are well lubricated with grease, so they’ll work smoothly and quietly. They’re surrounded by a rubber sleeve called a boot, but that can wear out with age or exposure to moisture or debris.  When the rubber breaks, the grease can leak out, and damage accelerates. When the ball joints start wearing out, you may start to hear clunking sounds that com ... read more

Your vehicle’s engine is an engineering work of wonder with many complex parts working in harmony to get you down the road. One of those simple but important components is called a serpentine belt. It is driven by a pulley on the engine and transfers that power to many of your engine’s most important components.  The serpentine belt may drive the alternator, water pump, power steering pump and air conditioning compressor.   When it’s working like it should, you won’t even notice the serpentine belt.  But when it starts to fail, you may hear a squealing noise coming from under the hood as the belt starts slipping.  Heat and time take their toll on the serpentine belt, causing it to crack or even to start shredding.  When this happens, it may not drive your alternator correctly, and your battery light may come on.  If the water pump isn’t turning, your engine may overheat, causing the heat gauge to show hotter than usual. When t ... read more

Regardless of whatever current gas prices may be, if you could use less gas, wouldn’t you? Well, here are 10 things that are robbing you of better fuel economy that you can change for the better:    •    Not enough air in your tires.  Underinflated tires have a smaller rolling diameter and more resistance to rolling.  Keep them inflated properly, plus ask us about more fuel-efficient tires.    •    Faulty oxygen sensor.  A faulty or dirty oxygen sensor can cause your engine to burn too rich a mixture of air and fuel.  That can also trigger a Check Engine light.  Have us check yours.    •    Oil age and type.  Contaminated or improper viscosities of engine oil can create more resistance in your engine.  Have regular oil changes and consider newer high-mileage oils.    •    Bad wheel alignment.  When your wheels aren’t lined up straight ... read more

One of the hardest working components of your vehicle is its transmission, shifting gears up and down when you need it to.  The transmission is vital to your vehicle driving properly, and if you start to see signs of problems in it, it’s best to have them fixed earlier rather than later. (Since nearly all new vehicles have automatic transmissions, we’re leaving manual transmissions for another time since their issues are different.) One sure sign your transmission has a problem is when you notice it’s not changing gears like it used to.  Or perhaps you observe when it does change gears, they slip when you are driving.  Gear change problems could be as simple as something wrong with your transmission fluid, but it could be more serious, so get this one checked out soon. Another trouble sign is when you feel your transmission shaking and vibrating as you’re accelerating, decelerating or trying to maintain a constant speed. Hearing odd noises when yo ... read more

You may have noticed when you start your vehicle, you’ll see several symbols light up on the dash.  They’re different colors and shapes, and sometimes it’s hard to figure out what each of those symbols mean. They are warning lights and symbolize something in your vehicle is sending you a message.  It’s the result of today’s vehicles having lots of computers.  The good thing about having so many of these warning lights is they can let you know there’s an issue in need of attention before a more serious failure.   Sometimes it can be challenging to figure out what each light means, so here are some of the most common ones.  One looks like your vehicle’s engine from the side, the Check Engine light.  It alerts you to something as simple as a loose gas cap to a far more serious problem like an overheating engine.  When the Check Engine light comes on, bring it into our shop.  If it’s blinking or flashin ... read more

If you drive a newer vehicle, chances are it has disc brakes, and one of the components of that type of brake is called a brake caliper.  The caliper allows the pressure from your foot on the brake pedal to eventually move brake pads against discs in your wheels, which then slow and stop your vehicle.   If you have disc brakes on all 4 wheels, your vehicle will have 4 calipers.  If you have them just on the front wheels, you’ll only have 2 calipers.  Because your wheels and brakes do their work outside and on the road surface, they are exposed to a lot of dirt and debris, as well as enduring heat, cold, moisture and tough treatment in daily driving.   Your calipers have seals that are susceptible to the heat generated during the repetitive stops in normal driving, which can take a tough toll on those seals. If you drive when your vehicle’s brake pads and rotors are worn, you can ruin your calipers in the process.   Here are a few signs that a c ... read more

Maybe that little sticker on your windshield is giving you the reminder that it’s time for your vehicle to have an oil change.  You’ve thought, “Aw, I can skip this one and save myself a little money.”  When it comes to things you should never ignore on your vehicle, timely oil changes are number one on the list.   When the oil stays in your vehicle too long, it can accumulate dirty particles and begin to break down, defeating its lubricating properties.  Skipping or delaying an oil change can lead to far more expensive repairs down the line. Another is seeing a warning light and doing nothing about it.  Lights that advise you to check your engine or tell you things are running hotter than usual under the hood can be early warning signs to have a technician determine why.  Consider getting the answer earlier rather than later.  It could save you major headaches and money. Don’t skip having important fluids checked. That i ... read more