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Believe it or not, the A/C system in your vehicle is fairly simple in principle and design. Like your refrigerator, it operates on a cycle of compression and expansion of a gas, known as the refrigerant. The compressor turns the gas into a liquid, and as the gas evaporates it provides cooling. Like your refrigerator, its main components are:    Compressor Condenser  Receiver/dryer Thermostatic expansion valve Evaporator Refrigerant Blower  The good news is most automotive A/C sys...

You go out to your car, start it up, pull out of your parking space and see a puddle of...something...where you were parked a moment ago. This is never a good feeling. What could it be?    Fortunately, some automotive fluids are dyed different colors to make this a little easier to narrow down.    Does it appear to be water? Were you recently running your A/C? Chances are that's just condensation from the A/C system, which drips out through a rubber tube and is perfectly normal. No worries ther...

For some, the idea of an "organized car" is almost blasphemous, but having your vehicle set up so you can actually find things can be pretty nice. The bigger the vehicle -- minivans, SUVs -- and the more people they haul, the more disorganized they can get. Don't let your minivan turn into a rolling dumpster -- here are some great ideas for keeping it organized.  -- While newer vehicles have come a long way in terms of driver and passenger ergonomics and an abundance of c...

Buying a used car is somewhat less of a crapshoot than it was at one time. You can get detailed information on a vehicle's history via the CARFAX report, and a technician can use onboard diagnostics to get a good picture of what's going on under the hood and what problems might be coming up.    It's always a good idea to get a mechanic to look over any prospective purchase, but there are things you can get a look at yourself before you spend the money for a professional inspection. These are th...

You know that winter and bad weather are coming. Is your car ready? Here’s a quick checklist of things to get up to speed on:Motor oil: Motor oil has a tendency to thicken in cold weather, making it harder to circulate to upper engine parts at startup. If you haven’t ever used synthetic oil before, this might be a good time to start. The flow properties of the synthetic oil are a lot more consistent, meaning it doesn’t thicken in sub-freezing temperatures or thin out when it&rs...

You rely on your car every day, and you have a lot of money tied up in it. It’s probably one of the more valuable things you own…so make sure you get the most out of that investment:Oil changes: Changing your motor oil at regular intervals will ensure long engine life by cutting wear and friction and helping to prevent the buildup of sludge and carbon on internal engine assemblies.Cooling system: Older cast-iron engines could overheat with no serious consequences, but not so with to...

Yes, there are plenty of traffic laws in certain areas that don’t make much sense. Here, though, we present a collection of traffic laws from other parts of the world that are just bizarre:--In Thailand, the law states that no driver, male or female, shall ever drive without a shirt.--In South Africa, “the driver of a vehicle on a public road shall stop such vehicle at the request or on the signal of a person leading or driving any bovine animal, horse, ass, mule, sheep, goat, pig, o...

Yeah, yeah…your vehicle’s fairly new and you take care of it, and you’ve even got a membership in AAA. That doesn’t mean that your chances of ending up in a tight spot are zero. It’s just common sense to be prepared with a trouble bag in your car. Here’s a pretty good rundown of things you should keep in a car emergency kit:Fully charged cell phone: You may want to consider a cheap prepaid “burner phone” with a long battery life and keep it s...

It can be a lot of work and attention to detail to get your car really clean…especially if it’s pretty dirty to start with…but here are some ideas for truly thorough cleaning that you may not have thought of!--A cheap foam paintbrush can get into crevices (like A/C vents) that might be impossible otherwise. As you loosen up dust from these spots, keep a vacuum cleaner nozzle at work in your other hand to suck up the dust and prevent it from settling other places.--A soft-bris...

So you come out to start your car one morning and the Check Engine light on the dashboard comes on…and doesn’t go back off again. You can’t really notice any difference in the way the car runs and drives, but it’s on anyway. What does it mean? Since the late 80s, most engine functions have been controlled by a central drivetrain computer. This includes emissions controls, fuel metering and delivery, ignition timing, shift points and many other elements of drivability and performance. The dr...