Cold, hard facts about A/C and how to make it work for you
It’s summer and it's hot in Kansas, which means your car's air-conditioning system is going to get a workout. But there's an art to cooling your car correctly. The engineers at the CR Auto Testing Center have some handy tips to help you cool your car faster while burning less fuel.
1. Don’t Pre-Cool
Your car air conditioning works much better when you're actually driving, because the faster the engine turns, the faster the air compressor runs, which lets the system cool more effectively. Don't waste time and gas by letting your car run before you go.
If the interior is really hot, crank up the fan when you start driving, and open just the rear windows for 10 to 20 seconds. This forces all the hot air out of the cabin. Don’t open the front windows—that only moves the heat out of the front of the car, and it will leave the air in the back of the cabin hot and stagnant.
2. Go Low
Setting to the lowest temp and adjusting the fan makes the car air conditioning more efficient, will dry out the air less, and can actually save some fuel. Why's that? In a typical A/C system, the air is cooled to 38 degrees. If you set the temp higher, you are actually forcing the system to re-heat your air, which takes more effort, burning more fuel.
3. Don't Recirculate
If you have passengers in the back seat, turn off the recirculation mode. This takes air from the front of the cabin and pulls it back through the system, so even though everyone up front stays cool, the air in the back can get stale and hot.
4. Turn Off Stop/Start
If you’ve got a newer car that has an auto start/stop system, turn it off. This feature saves fuel, but it can also keep the car air conditioning compressor from running when it shuts the engine off. In very hot weather, you can begin to notice the lack of cool air very quickly, especially if you're stuck at a lengthy stoplight, or in stop-and-go traffic that's barely moving.
5. Make Sure Your Filter's Clean
Next time you get the chance, check your cabin air filter to make sure it’s clean. A dirty filter prevents optimal airflow. In newer cars, these filters are relatively easy to check on; if you see a lot of dirt accumulated on it, it's time to change it. You can save money if you can replace the filter yourself—in many modern cars the filter is accessible behind the glove compartment. But that's not always the case. In some vehicles, such as the first-generation Honda Pilot, the entire dash must be removed in order to get at the cabin air filter, and that's not a job for the faint of heart.
Bonus: Automatic Climate Control
If you have automatic climate control, lowering the temp doesn't make the car cool off faster. Most systems will do all the fan and temp adjustments automatically, so you can just set it and forget it.
Article from Consumer Reports.org - See original article here.
Don't Just Turn It Off; Fix the Problem
When your car's "Check Engine" light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.
The Check Engine light — more formally known as the Malfunction Indicator Lamp (MIL) — is a signal from the car's engine computer that something is wrong. The car dealer's service department can diagnose the problem for about $90. But there's a way to preview what the problem might be.
Prior to 1996, carmakers had their own engine diagnostic systems, primarily to ensure their cars were compliant with Environmental Protection Agency pollution-control requirements. Starting with model-year 1996, automakers standardized their systems under a protocol called OBD-II, which stipulated a standardized list of diagnostic trouble codes (DTC) and mandated that all cars provide a universal connector to access this information. It's usually located under the steering column and is easy to access.
Deciphering the Code
Do-it-yourselfers can buy inexpensive code readers that connect to this standardized onboard diagnostics (OBD) port and search for the code's meaning on Web sites such as Engine Light Help. The Check Engine light can even be turned off by some code readers, even though this action alone does not actually repair the underlying problem. In many such cases the light will simply come back on later.
Experts say that many drivers confuse the "service required" light on the gauge cluster for the Check Engine light. These warning lights are unrelated. The service required light just means the car is due for an oil change or other routine maintenance. It is not the indicator of trouble that the Check Engine light is.
Check Engine lights come in orange, yellow or amber, depending on the manufacturer. If the light begins flashing, however, it indicates a more serious problem, such as a misfire that can quickly overheat the catalytic converter. These emissions devices operate at high temperatures to cut emissions, but can pose a fire hazard if faulty.
Don't Ignore That Light
So if the Check Engine light comes on and it's steady rather than flashing, what do you do? The most obvious answer, of course, is to get the engine checked. But many people do nothing, perhaps fearing an expensive repair bill. Some drivers with older cars want to squeeze out as many remaining miles as possible without visiting a service garage. But before they can pass their state's vehicle inspection, they have to get the light turned off. And a state inspection is a good motivator for dealing with the problem. If the light is lit, there's a good chance the car is releasing excess pollutants or consuming too much gas.
Ten percent of all cars on the road have a Check Engine light on, and the drivers of half of these cars have ignored the light for more than three months, says Kristin Brocoff, a spokesperson for CarMD.com. The company sells a $119 device that reads engine codes and provides access to a Web site database that identifies the problem (according to the code) and estimates the cost of repair.
CarMD isn't alone in the code-reader market. An Internet search will bring up countless devices, some costing as little as $40. Most come with a booklet listing the codes, but it is also easy to do a Google search to locate the codes. Aamco will check the Check Engine light for free and provides a fact sheet.
As Dan Edmunds, director of vehicle testing for Edmunds.com, points out, the system is primarily designed to continuously monitor a car's emissions system over the life of the car. However, he notes, "The engine and the emission control system are so interlinked that the health of the emission control system is a good indication of the general health of the car's engine."
Steve Mazor, the Auto Club of Southern California's chief automotive engineer, says that while some people freak out when they see the Check Engine light, "others just put a piece of black tape over it and keep driving." Mazor says it's important to promptly address problems indicated by the light. Ignoring them could lead to larger, more costly problems later.
If the light comes on, Mazor says the driver should first see if the gas cap is loose: That's a common cause. A loose cap sends an error message to the car's computer, reporting a leak in the vapor recovery system, which is one aspect of a car's emissions system. If the gas cap is loose, tighten it and continue driving. Even so, it will take some time for the light to go off, he says.
Mazor says that even an inexpensive code reader could be useful for car owners, even if they aren't mechanically inclined.
"If the mechanic gives you the same information, at least you know they are going down the right road," he notes. Edmunds agrees, adding that a code reader provides car owners with one more data point to help them talk with their mechanic and avoid costly or unnecessary auto repairs.
But even with the code and its meaning in hand, do-it-yourself interpretation can be a little tricky — even if you are mechanically inclined, as Dan Edmunds explains.
"My wife's car started running poorly and there was a Check Engine light. My code reader detected a code for the Cam Angle Sensor. I thought about buying the sensor and installing it myself, but if I had, I would have wasted time and money because it turned out that the sensor was fine. Instead, mice had gotten under the hood and had chewed some of the wires leading to it."
Occasionally, the Check Engine light comes on when nothing is wrong with the car, Mazor says. It could be a temporary problem caused by a change in humidity or other factors. In such cases, the light should go off by itself after a short time.
CarMD published a list of the five most common Check Engine light codes in 2010 and estimated cost of repair. In order of frequency, they are:
This Article came from WWW.edmunds.com
April 8th event at Checkers
Harris Auto Repair will offer a special promotion during the "Xtra Local Lawrence Local Business Fair" on Saturday, April 8th at Checkers in Lawrence, Kansas. Customers can buy 3 oil changes and receive a fourth for free!
The deal is $89.99 plus tax and includes 4 oil changes. Offer includes 5 quarts of synthetic blend oil and a filter per change. Extra charges will apply for full synthetic and premium filters. This deal equals more than $100 in savings. The normal price of a standard oil change at Harris Auto Repair is around $50.
The local business fair is organized by Lawrencehits.com and hosted at Checkers in Lawrence. Multiple other local businesses will host booths at the event. Join us Saturday, April 8th inside the store from between 10 a.m. and 2 p.m.
What do you think? Is spring here to stay in Kansas? We sure hope so. It's time for spring cleaning, planting and of course, spring maintenance! Ensure your vehicle is in tip-top shape after the cold winter months. Come visit us at Harris Auto Repair!
Now that winter is just a memory, millions of Americans will take to the roads to enjoy the warmer weather. The Car Care Council reminds motorists that spring is the perfect time of year to make sure your vehicle is ready for the upcoming travel season.
Whether you’re driving across the country or driving across town, the Car Care Council recommends checking the following vehicle components before embarking on your next trip:
Article by Car Care News Service - see original article here.
How you drive and take care of your vehicle can have a big effect on how much fuel you use. Follow these simple tips to save money and reduce pollution.
Bryan Harris is the owner of Harris Auto Repair and strives to keep his customers informed and provide the best advice in car maintenance and repair!