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Category Archives: NAPA Service Assistant

Out of Joint (CV Joint and Boot Replacement)

If you have a front-wheel-drive vehicle or some specific rear wheel drive vehicles, it has components called CV joints which enable you to turn your wheels smoothly. The CV stands for “constant velocity.” In essence, it’s a set of gears that connect a shaft that allows power from the transmission to be sent to the wheels. When you turn the wheels, no matter what angle, the input velocity rotation will be equal to the output. Thus, the name, CV (constant velocity) joint. Other vehicles with 4-wheel drive and all-wheel drive also use CV joints. If one of your CV joints isn’t working right, you may find your vehicle difficult to handle. If one breaks, your vehicle may stop moving. So, it’s important that CV joints be in top working condition. The joints need a lot of lubrication, so they are surrounded by grease. There’s a rubber enclosure around them called the boot which holds the grease in and protects CV joints from the elements. The biggest probl ... read more

Simple Answers from ASM Auto LLC: Engine Air Filter

Question: What's the harm in putting off replacing my engine air filter a little longer? ASM Auto LLC Answer: That's a fair question from drivers because the harm takes a while to manifest. Let's take a small step back and talk about what an engine air filter does. The air all around us contains dust, dirt, pollen, spores, etc. Some areas and times of the year have more contaminants in the air. The job of the air filter is to keep that stuff out of your engine. The benefit to drivers is obvious. Now your engine uses a lot of air – like 12,000 times the volume of air as fuel – so the engine air filter has job to do. When t ... read more

Don't Store These in a Cold Vehicle (Items to Avoid Storing in a Freezing Vehicle)

The other day, a man walked into a restaurant carrying a can of paint. He had just bought the latex paint at the local home improvement store, and he was stopping for lunch. "Latex paint is water-based, and it's so cold out. If I leave it out in my truck while I'm eating, it'll be frozen by the time I'm done with lunch." Yes, latex paint is one thing you should never leave out in your vehicle during freezing weather, since the cold can make it separate and clump up, turning it into a gloppy mess that won't go smoothly on your walls. There are a few other things you should not leave in your freezing vehicle. Medicines and drugs can change chemically if they freeze, especially those in liquid forms like insulin, eye drops, and cough syrup. It can be tempting to leave bottled water in the cup holders. The problem comes when bottled water freezes and expands. That can fracture the plastic. When things thaw out, guess where the water goes? Ditto for soda o ... read more

ASM Auto LLC Takes Care of Your Vehicle's Suspension

After many years and tens of thousands of miles vehicles' suspension system components do wear out, but how long that takes depends a lot on how you drive. As you can imagine, if most of your driving is on smooth highways, your shock absorbers will last a lot longer than if you do most of your driving on bumpy roads or hauling heavy loads. In addition to just wearing out, vehicle suspension components can be damaged in an accident or by a hard impact like a pothole, hitting a curb or a rock in a bumpy road. Because the life span of shocks can vary so widely, your vehicle's manufacturer recommends periodic inspections. During an inspection, your friendly and knowledgeable ASM Auto LLC service advisor will check for worn, broken or missing parts. Signs for residents that shocks or struts are wearing out: the vehicle tires may have a cupped wear pattern. This is from the shocks bouncing unevenly. Residents may notice a floating or drifting sen ... read more

PCV Valve Replacement

The PCV valve is a little, inexpensive part that does a big job. PCV stands for Positive Crankcase Ventilation. The crankcase is the bottom area of the engine that holds the oil. When the engine’s running, fuel is burned to generate power. Most of the exhaust from combustion goes out through the exhaust system. But some exhaust blows by the pistons and goes into the lower engine, or crankcase. These hot gases are about seventy percent unburned fuel. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause engine corrosion. At high speeds, the pressure can build up to the point that gaskets and seals start to leak. Over time, the vented gases will gum up the PCV valve and it won’t work well. That can lead to all the problems I’ve already described, oil leaks, excessive oil consumption and wasted gas. Fortunately, it’s very easy to test the PCV valve and quick and inexpensive to replace. Even so, it’s often overloo ... read more