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Battery Replacement At Gunter Automotive Inc. In Lawrenceville

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Hello, welcome to Gunter Automotive Inc.. Today's focus is batteries. It seems like everything in Lawrenceville runs on batteries. Of course, the batteries we’re most concerned with here at Gunter Automotive Inc. are those in our customer's vehicles. Just like the batteries in our smoke detectors or TV remote, car batteries wear out and need to be replaced. There are a couple of things Lawrenceville drivers should know when looking for a new battery.

Look for two measurements that come into play: cold cranking amps and reserve capacity.

Let’s start with cold cranking amps. Battery Replacement At Gunter Automotive Inc. This can be thought of as the power output used to start a cold truck engine. The number of cold cranking amps you need depends on your vehicle and where you live in GA, specifically how cold it is. (Many GA auto owners have first-hand experience trying to start their car on a cold winter morning.) The two factors are that the colder your truck's engine is, the more power it takes to turn the engine over to get it started. It has all that cold, sluggish oil to contend with.

The other factor is that the chemical reaction in the battery that creates electrical energy is less efficient when the temperature dips. At Gunter Automotive Inc., we consult the table shown below. Let’s say it’s eighty degrees Fahrenheit in Lawrenceville. At that temperature, 100% of the battery’s power is available. At freezing, only 65% of battery power is available, but it requires 155% as much power to start the engine as it did at eighty degrees.

As you can see from the chart, the colder it gets, more power’s needed, but the available power drops.

Percent of Power Available Celsius Fahrenheit Power Required  
100 27 80 100  
65 0 32 155  
40 -22 0 210  
25 -32 20 350  

So if you live where it’s cold in GA, you need a battery with more cold cranking amps than you do where it's moderate or hot. The battery that originally came with your truck was based on averages. At Gunter Automotive Inc., we like to remind Lawrenceville drivers that they should always get at least as many cold cranking amps as their car makers recommend, but may want to upgrade if they live where it gets real cold.

And the type of engine you have will impact the battery you need: A six-cylinder engine requires more cold cranking amps than a four. An eight cylinder needs even more. And diesel trucks require more than a gasoline engine with the same number of cylinders.

Now on to reserve capacity: It’s a measurement of the number of minutes of reserve power the battery has at a given load. The number is more important to Lawrenceville car owners these days because of parasitic drain. Parasitic drain is the battery energy that’s used when the key is off in your truck. So, the power drawn by the security system, the remote start system, even the power the computers require to maintain their memory.

Reserves are also needed when you make very short trips around Lawrenceville. You’re not driving long enough for the battery to recover the energy it used to start the engine. So go with the minimum recommended by your manufacturer or Gunter Automotive Inc. and upgrade if you need more.

Talk with us at Gunter Automotive Inc. about your options. If you need more from your battery, a larger, heavy-duty battery may be called for. At Gunter Automotive Inc. in Lawrenceville, we remind our customers that it’s very important that the new battery fits your truck: the terminals can’t be touching other parts.

Batteries are a big ticket item for most GA auto owners, so the warranty gives piece of mind. There’re two kinds of car battery warranties: pro-rated and free replacement. With the pro-rated, you get a credit for a portion of the battery if it fails during the warranty period. With a free replacement warranty, you get just that, a free replacement. Be sure to ask us at Gunter Automotive Inc. about the warranty so you know what you’re getting.

Dashboard

How Your Check Engine Light Works

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Have you ever had an experience like this in Lawrenceville GA? You drive through the one of those automatic car washes. When you get to the end, where the dryer is blowing, your check engine light started flashing!

You fear the worst, but within a block or two, the light stopped flashing, but stayed on. By the next day, the light was off.

You wonder; "What was going on?" Well, it's actually a good lesson in how the Check Engine light works.

Your air intake system has a sensor that measures how much air is coming through it. When you went under the high-speed dryer, all that air was blasting past the sensor. Your engine computer was saying, there shouldn't be that much air when the engine is just idling. Something's wrong. Whatever's wrong could cause some serious engine damage.

Warning, warning! It flashes the check engine light, to alert you to take immediate action.

It stopped flashing because once you were out from under the dryer, the airflow returned to normal. Now the engine control computer says the danger is past, but I'm still concerned, I'll keep this light on for now.

Then the Check Engine Light goes off in a day or two.

The condition never did recur, so the computer says whatever it was, it's gone now. The danger is past, I'll turn that light off.

Now a flashing check engine light is serious. You need to get it into our Lawrenceville GA shop as soon as possible. But if it stops flashing, so you have time to see if the problem will clear itself or if you need to get it checked. How does the computer know when to clear itself?

Think of it this way. The engine control computer is the brain that can make adjustments to manage the engine. Things like alter the air to fuel mix, spark advance, and so on. The computer relies on a series of sensors to get the information it needs to make decisions on what to do.

The computer knows what readings are in a normal range for various conditions. Get out of range, and it logs a trouble code and lights up the check engine warning.

The computer will then try to make adjustments if it can. If the computer can't compensate for the problem, the check engine light stays on.

The computer logs a trouble code. Some people think the code will tell the technician exactly what's wrong?

Actually, the code will tell the technician what sensor reading is out of parameters. It can't really tell you why, because there could be any number of causes.

Let's say you're feeling hot. You get your heat sensor out – a thermometer – put it under our tongue and in a minute or two you learn that you have a fever of 104 degrees.

You know your symptom – a fever – but you don't know what's causing it. Is it the flu, a sinus infection or appendicitis?

You need more information than just that one sensor reading. But it does give you a place to start and narrows down the possible problems.

There are reports on the internet telling you that you can just go down to an auto parts store and get them to read your trouble code or buy a cheap scan tool to do it yourself.

There are two problems with that. First, the computer stores some trouble codes in short term memory, and some in permanent memory. Each manufacturer's computer stores generic trouble codes, but they also store codes that are specific to their brand.

A cheap, generic scan tool, like you can buy or that the auto parts store uses, doesn't have the ability to retrieve long-term storage or manufacturer specific codes. Your Lawrenceville GA service center has spent a lot of money on high-end scan tools and software to do a deep retrieval of information from your engine control computer.

The second problem is that once you've got the information, do you know what to do with it? For example, a very common trouble code comes up when the reading on the oxygen sensor is out of whack.

So the common solution is for the auto parts store to sell you a new oxygen sensor, which are not cheap, and send you off on your way. Now your oxygen sensor may indeed have been bad and needed replacing. But the error code could have come from any of a dozen of other problems.

How do you know the right solution? Back to the fever analogy, do you need surgery or an aspirin? Leave it to the pros at Gunter Automotive Inc.. Give us a call at (770) 962-1380 and let us help you resolve your check engine light issue.

Alignment

Lawrenceville Alignment Service

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Your car might have an alignment problem if: it drifts or pulls to one side, your steering wheel is off center, you have uneven tire wear or your car doesn’t feel like it handles right. When all of a vehicle’s wheels are lined up exactly with each other, your wheels are in alignment. Running into potholes, smacking a curb or other object are great ways to knock your car out of alignment. Then one or more of your wheels starts pulling in a slightly different direction and the problems begin.

Driving for an extended time when you're out of alignment causes your tires to wear unevenly and excessively. This can be dangerous and expensive. You'll have to replace your tires sooner, but even worse - you may cause premature wear to your suspension system, which can be really expensive.

The front wheel alignment is adjustable on all vehicles, and the back wheels are also adjustable on some cars. The adjustment can go three different ways. The first adjustment is called toe. The next adjustment is called camber. And finally, there is castor. The engineers who designed your vehicle determined the alignment settings that will give you the best handling and safety.

There are several things involved in an alignment check. First, there's an inspection of the steering and suspension - it should be checked to see if anything's bent or broken. Then the tire condition needs to be inspected. From there, the vehicle is put on an alignment rack and an initial alignment reading is taken. If all four wheels are adjustable, they are lined up perfectly parallel with the vehicle's center line. If the back wheels aren't adjustable, a technician at Gunter Automotive Inc. can determine the direction they push and then aligns the front wheels to match.

Gunter Automotive Inc.
579 Lyle Circle
Lawrenceville, GA 30046
(770) 962-1380

Like most things, your manufacturer has suggested a mileage interval for having your alignment checked. But if you run into a curb, pothole or something else that's given you a big jolt, pay attention to whether your vehicle is pulling to one side when you drive. It's better to have your alignment checked before waiting to see if there is uneven tire tread wear - by then, the damage is done.

Getting your alignment checked when needed is a great way to extend the life of your tires and suspension parts. It also makes sure that your tire meets the road properly for maximum performance and safety.