Posted on 2/23/2020
Today, we are talking about your PCV valve. Unburnt fuel is forced into the crankcase as your engine runs. The PCV (positive crankcase ventilation) valve vents this unburnt fuel and oil vapors from the crankcase and sends it back into the air intake system to be burned in the engine. A clogged PCV will not allow these vapors to escape. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause vehicle engine corrosion, something we see occasionally at Twin City Auto. At high speeds on NE freeways, the pressure can build up to the point that gaskets and seals start to leak. Back in the old days, vehicles were simply installed with a hose that vented these gases out into the atmosphere. But starting in the 1964 model year, environmental protection laws required that these gases be recycled back into the air intake system to be mixed with fuel and burned in the vehicle's engine.This is much better for air quality an ... read more
Posted on 2/16/2020
You've probably noticed how much easier it is to see when you're driving in the daytime as opposed to at night. It's one of the main reasons about half of all fatal vehicle accidents happen when it's dark. That's why it's important that your vehicle's headlights are in top condition and working the way they should. That means that they're aimed correctly and producing the amount of light they are intended to produce. For many years, headlights were a standardized size and shape. They were what is called a "sealed beam," and when you needed to replace one, it was pretty simple. You just took the old one out and plugged a new one in. But now there are hundreds of different types of lighting systems on vehicles, producing light with such illuminating technology as light-emitting diodes (LEDs), halogen bulbs, high-intensity discharge (HID) bulbs and more. Some vehicles have systems that turn your lights in the direction you turn your steering wheel so you can ... read more
Posted on 2/9/2020
In the hot weather, seeing steam coming from the engine compartment is something we all dread. No one wants that to happen to them. But if you know the signs of overheating and how to deal with it, you may be able to reduce the risk of damage to your vehicle, maybe even prevent getting stranded on the road. Besides the steam coming out of the engine compartment, here are a few signs of overheating. Your vehicle has a heat gauge that may have a needle that can go into a red zone or up to the "H" (for High) position. You may smell odors, perhaps a burning (could be hot oil) or a sweet smell (engine coolant leaking). When you encounter any of those signs, you know you have to do something to keep the engine as cool as possible to avoid potentially catastrophic damage. Turn off the air conditioning and turn up the heat. While that last part may sound odd, it helps draw heat out of the engine. If you can do it safely, pull off the road to a spot awa ... read more
Posted on 2/2/2020
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