Q & A #17 With The Auto Specialist

Author: Car Parts Guy  |  Category: Autos and Cars, Car Q and A

Q & A #17 With The Auto Specialist

Welcome to another round of Q & A with the Auto Specialist. In this column, we continue to put your car problems under the microscope to figure out what’s wrong and how to fix it. The goal is not to be able to repair everything yourself. Rather, we want to build your knowledge about car parts and components that are integral to the smooth operation of your vehicle.

In the last segment, we looked at two issues. We narrowed one down to an air conditioning compressor that was failing and another down to cracked spark plugs. Today, we’ll help a reader understand her mechanic’s advice regarding her transmission. We’ll also try to solve another reader’s idling problem. There’s a lot to cover so let’s get started.

Question: I bought a 2003 Chrysler Sebring when it was new. I’ve got about 88,000 miles on it. I took it in to a local repair shop a few days ago just to make sure everything was in good condition. They told me that I needed to have my transmission flushed. I’ve never had that service done on my car before, so I didn’t know what to do. I left without having the service performed, but I wanted to ask whether it’s necessary. What do you think?

Answer: You don’t need to have your transmission flushed. This is one of those services that you don’t need, but it’s still promoted by a lot of repair garages and dealership technicians. Now, let me make a quick distinction. Flushing simply means hooking up your Sebring to a machine that pushes out the old transmission fluid. Again, it’s unnecessary. Regular servicing should include a drain of the torque converter, dropping the pan, putting in a new filter, and a fluid refill. That’s all you need.

Question: I have a Ford Mustang (2005 with 45,000 miles) and it has always driven fine. Recently, the battery died. It was my fault because I accidentally left the door ajar overnight (stupid, I know). I recharged the battery, but my car doesn’t idle right. It’s low. Does the car battery have something to do with it?

Answer: The recharge of the battery is causing the odd idling. The good news is that it’s not a serious problem. The computer needs to relearn the proper idling speed. That will happen naturally as you drive. In fact, you can encourage the computer to learn more quickly by driving more. Give it time and your engine will start idling like it did prior to your battery dying.

That’s all we have time for in this installment. Next time, we’ll have two new car problems to dig our hands into. We’ll take a look at a starting problem that one reader is having with his sedan. We’ll also help a reader deal with his car’s brake problem. If this is the first time you’re joining us, be sure to return for the next segment. Until next time, drive safely.

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Car Q & A #6 With The Auto Specialist

Author: Car Parts Guy  |  Category: Car Q and A

Car Q & A #6 With The Auto Specialist

Car parts have a way of failing or developing problems at the worst times possible. It usually happens when we’re in a rush to get to the office, pick up the kids, or take our spouses out for the evening. Unfortunately, such problems are inevitable and can try any body’s patience.

The purpose of this regular column is to build your repertoire of “do it yourself” vehicle maintenance expertise. My hope is that you’ll eventually be able to identify issues and immediately know what to do. In some cases, you’ll even be able to fix the glitch yourself. In today’s column, we’ll address a potentially dangerous issue with one reader’s air conditioner and take a look at the value of extended warranties.

Question: For the past few days, I’ve noticed a gas odor coming from my truck’s A/C unit. At first, the only way I could smell it was by putting my nose up to the vents. But now, the odor is stronger. Any idea why it’s happening?

Answer: First, stop driving your truck. If you can smell gas coming from the air conditioner’s vents, your truck might be leaking fuel. That’s dangerous. If I were you, I’d call a tow service to haul it to the nearest repair garage. They’ll be able to tell instantly whether there’s a gasoline leak.

Question: I’m planning to buy a new Nissan Altima and have been thinking about getting an extended warranty. Most of my friends say it’s a waste of money. I wanted to ask you what you thought about it. I’m usually pretty conservative, so an extended warranty seems like a good thing to have. Do you agree?

Answer: Extended warranties are a shot in the dark. In some circumstances, they can be a lifesaver. In others, they’re a waste of money (like your friends said). It’s important to understand why dealerships offer them because it can shed light on your decision to buy one.

A lot of times, drivers completely forget they have an extended warranty. The dealer knows this. Plus, some warranties are voided if you have certain types of work performed on your car. Again, dealers know this. In fact, they’re hoping it happens.

Should you invest in one? It’s impossible for me to say because I don’t know how long you intend to keep the car. Altimas are dependable. They don’t tend to break down frequently. But, if you’re conservative and don’t mind spending the money, having the extra “insurance policy” may be worthwhile.

Next time, we’ll explore a few new car problems, including what happens if – or when – you accidentally add water in the place of engine oil. As always, drive safely, take care of your vehicle, and join us next time to continue our adventure under the hood.

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Mufflers: A Basic Guide To Your Vehicle’s Muzzle

Author: Car Parts Guy  |  Category: Autos and Cars

Mufflers: A Basic Guide To Your Vehicle’s Muzzle

Have you ever heard a relatively tame looking station wagon driving down the street that sounds like 500 lawnmowers running in unison? Well, chances are, that station wagon is not modified, it just has a seriously damaged (or absent) muffler. Even the smallest, quietest gasoline powered vehicles can sound like a sick Harley-Davidson without this part.

If you were to disassemble the system, you’d find a relatively simple looking set of holes and tubes. Believe it or not, those little details are deliberately and scientifically arranged in the most optimized way possible. They deflect the sound waves created by your engine, partially canceling them out.

A good analogy to help you understand how and why mufflers work so effectively is to consider the popping of a balloon. When you puncture a balloon, all of the air that is instantly released creates a loud, startling sound. Similarly, your engine fires thousands of times per minute. Burning and forcing out air also creates a great deal of sound.

Now, imagine for a moment… instead of popping the balloon, you allow the air to sleep out slowly through the opening at the bottom. The result is a much quieter, much more controlled sound. This is very much so how your muffler operates. It allows the air to be channeled through it slowly, expanding along the way, so that it can be released in a slow and controlled manner through your exhaust pipe.

The main parts that comprise a standard muffler include:

- Inlet
- Outlet
- Resonator Chamber
- Perforations

As the exhaust enters through the inlet tube, they are bounced back off the wall and are then reflected into the main body of the system through a hole. The exhaust is then passed through a series of holes to yet another chamber where they are soon passed through the outlet. Connected to the first chamber is the resonator, which contains a certain calculated amount of air that produces a wave. This wave essentially cancels out certain frequencies that are caused by the exhaust.

Some people like to have their exhaust system modified. There are many types of customized mufflers that cause air to be moved more quickly, creating additional engine performance. However, with the speedier passing of exhaust comes more noise. Many parts of the country regulate what types of modified exhaust systems are “street legal,” in order to regulate noise pollution. If you are stopped by law enforcement and have an illegally modified exhaust, you’ll likely receive a citation.

If you need to replace your muffler, think used auto parts to not only save the green in your wallet but think eco friendly recycled green as well.

Check out http://www.vehicleclassics.com/ for more car info

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