San Diego Auto Repair

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

You may have never thought about it, but when you turn a corner, the wheels on one side of your vehicle turn at a different speed than the other side.  What is this magic? The answer is something called the differential.   A differential is a gear box placed between the drive wheels and needs lubrication to work.  Over time, that fluid can become contaminated, reducing its effectiveness. You likely won’t be able to detect any signs that it’s happening, though it may get a little noisier over time.  If you continue to drive with contaminated and degraded differential fluid, the gears may wear prematurely. That can also contribute to excess wear on the drive-wheel tires.    Two-wheel drive vehicles have one differential while all-wheel and 4-wheel drive vehicles will have two or three.   Your vehicle’s manufacturer has guidelines on how often you should have the differential fluid changed, and we recommend you follow those.   Chan ... read more

You know that sinking feeling when you realize one of your tires has a problem.  It may be making an odd noise or behaving oddly when you're driving.  You may hit a pothole or curb and one suddenly goes flat.  Or you may head back to your vehicle and discover it has one tire deflated without a clue of what must have happened to it. With a lot of different tires hitting the streets these days, the issue of whether to have a tire repaired or replaced can be tricky, and we strongly recommend you have a trained technician help you make that decision.  One of the most common causes of flat tires is picking up a screw or nail in the tread area.  Many of those can be patched and plugged if the puncture isn't more than ¼ inch/6 mm in diameter. Most tires can handle two of this type of repair, but any more and you should buy a new tire.  If there's a puncture or bulge in the sidewall or shoulder, the rule of thumb is it's not repairable.  The sidewall d ... read more

It’s likely happened to you once or twice.  You head to your vehicle, open the door, turn the key and… lo and behold, your battery is dead. Now you’re stranded, may have to get a jump or a tow, and you’ll definitely be late for wherever you were headed. While your vehicle may sometimes give you warning signs, other times it doesn’t.   As many as one out of every four vehicles will have to have its battery replaced in the next 12 months.  If you don’t want to be surprised the next time your battery fails, consider having it tested. There are different types of battery testing.  One measures voltage. Another checks for something called conductance.  By sending a certain type of electric current into the battery, it can measure how healthy your vehicle’s battery is.  There’s also a load test.  It checks how your battery is working while drawing power from it.  Newer test equipment found in professiona ... read more

Whether or not your exterior light bulbs are all working probably is not at the top of your list when you think about your vehicle.  But those exterior lights are more important than you think, and they're vital to your safety and that of other drivers near you. Headlights are important.  Not only do they help you see safely down the road at night, they also help oncoming drivers know that the vehicle they're approaching is not a motorcycle.  Both headlights should be working properly and aimed so that they don't blind other drivers. Taillights are also important for a few reasons.  They tell drivers what your intentions are (changing lanes, turning, stopping).  So, the bulbs back there must be all in working order for maximum safety. Ditto for the front turn signal lights.  They alert oncoming drivers to your lane changes or turns (if you use your turn signals!).  Some side mirrors also have turn signal bulbs in them. There are a few other important ... read more

Your vehicle has a few filters you might be somewhat familiar with.  There’s the oil filter that removes impurities from your engine’s oil, and a couple of different kinds of air filters that prevent contaminants from getting into the engine and the cabin. But you may not know that your vehicle also has a fuel filter. The fuel filter keeps contaminants such as particles and other foreign substances from making their way into the engine.  They can result from using lower quality fuel, driving in dirty or stop-and-go conditions, or simply what happens after many weeks and months of travel.  At some point, your fuel filter will start to get clogged up and won’t let the fuel get to your engine easily.  You might notice some signs of that: your engine doesn’t have the power it used to, it may misfire when you accelerate, it may be harder to start, or it may stall while you’re driving.  You may notice your vehicle vibrating a lot when yo ... read more

When you are pointing your vehicle straight down the street, it should go straight.  That’s pretty straightforward, right? Sometimes, though, you may notice you have to keep adjusting the steering wheel to keep going straight.  While that could be caused by many different issues, one possibility is that you have a failing or bent control arm. Another sign is that when you brake, your vehicle pulls to one side or the other.  Sometimes your suspension may sound noisy, especially when you’re traveling on rough surfaces.  A damaged control arm may also make it almost impossible for you to get a good wheel alignment.  The control arms are part of your suspension, and some vehicles have upper control arms and lower control arms.  Not all have the same number of control arms, but one thing is important: If you have worn bushings on your control arms or a worn-out ball joint, the control arm on the other side should also be replaced.  The rubber b ... read more

See if any of these are happening to your vehicle.  You feel it vibrating excessively underneath when it’s running, or you hear strange clunking, grating, or grinding sounds coming from beneath.  Maybe it’s hard to turn your vehicle, or you can hear squeaking when you’re going slow.  Perhaps you feel a shudder when you step on the throttle.   Any of those could be signs that your vehicle’s driveshaft might need lubricating, and it’s important to have one of our technicians check it out. Your vehicle’s engine puts out a lot of twisting power.  That force is called torque, and the driveshaft is the part that handles the job of transferring all that torque from your engine to the wheels.  If it’s a four-wheel or all-wheel drive vehicle, it will have driveshafts front and rear.  Some driveshafts have different segments which are connected by couplings called U-Joints.   So that everything can glide along fine ... read more

If your vehicle makes a grinding sound when you turn the steering wheel, it's speaking to you.  No, really, it is.  So listen to what it's saying and you could avoid a much more costly repair down the road. A grinding sound coming from the front of your vehicle when you are turning can offer some very informative clues as to what's going on.  One cause could be that there's a problem with the mechanical linkage that enables you to turn the wheels.  Another is that the hydraulic system that makes turning the steering wheel easier may have its own problems.  Think of it.  Hydraulic power steering has many components that need to work in tandem.  The power steering fluid may be too old and contaminated.  Or its level may be low. That may be caused by a leak somewhere in the system. A technician can check things over to find out exactly what's happening. Other causes of grinding while turning can be problems with the suspension in the front.  Yo ... read more

When you step on your brake pedal, you want to feel confident that your vehicle’s going to stop.  If your brakes aren’t working right, it’s a risk to your safety and the safety of others on the road.  After all, you’re driving a machine that weighs thousands of pounds, and you have to be able to stop that big machine quickly and with control, especially with some of the speeds you travel on the highways.  The heart of your vehicle’s brake system is the master cylinder.  When you apply the brakes, the master cylinder has pistons, springs, and brake fluid.  That fluid amplifies and distributes the force of your foot through brake lines to calipers at all your wheels.  Those calipers squeeze down on rotors or discs, which is what slows down and stops your vehicle. For safety, a master cylinder has two cylinders, one for two wheels, and the other for the remaining two wheels.  That way, if there is a failure in one, you&rsqu ... read more