AUTONET TV

Sounds Like a Hot Rod (Noisy Exhaust System)

Driving along, your exhaust system's rumbling so loud that people turn and stare at you pass by.  You're wondering when the police are going to pull you over for illegal noise.

Your mind immediately thinks, aha! A broken muffler. 

Well, your exhaust system is composed of many more parts than just a muffler. 

Your engine makes power because of thousands of tiny explosions from detonating fuel.  Those explosions make a racket, so engineers came up with a system that acoustically dampens that sound in addition to getting rid of harmful exhaust.

In the engine is the exhaust manifold that looks like several pipes that join up into one pipe.  It directs exhaust to the catalytic converter. The catalytic converter converts harmful gases into less harmful gases using certain chemical reactions.  Then comes the muffler that has baffles inside to quiet the sounds of your engine noise.  Finally: the tailpipe.

All of those pipes and parts are joined together by clamps and held up by brackets, and they ride over some pretty bumpy roads.  They are also exposed to the elements, like salt, water, rocks and grit.  Chances are that one of those clamps or brackets has been weakened by corrosion.  When you hit a bump, bingo! The crack widens into a gap and there's a spot for the engine noise to come roaring out instead of being directed into the muffler's quieting chambers.

You might be surprised to know that the exhaust system can rust from inside out.  How? Moisture is one component of exhaust, and moisture on the inside can do the same kind of damage as moisture from the outside. 

It's a good idea to have your exhaust system looked at regularly by a technician.  He or she can evaluate the condition of the metal and recommend when it might be time to replace parts before they break.

Then you'll have a decision to make.  Newer exhaust systems are made out of stainless steel that is much less prone to corrosion issues.  Others are made of aluminized steel that also fights rust.  You've probably already guessed that they can cost more, but the extra price up front may give you an exhaust system that will last much longer. 

Sure, with a repaired exhaust system, you won't have quite the head-turning vehicle you once had.  You'll just have to live with all the quiet.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

Breathe Deep With Your Cabin Air Filter

Bad air quality while you're driving around Walnut Creek is nothing to sneeze at. But seriously, more and more vehicles these days come equipped with a cabin air filter. Since they're fairly new on the scene, a lot of folks don't know about them yet.

These filters clean the air in the passenger compartment, or cabin, of your car or truck. They do the same job as the furnace filter you have at home. They can filter out particles as small as three microns. By contrast, a grain of sand is about 200 microns.

So your cabin air filter can clean out dust, pollution, pollen and spores to keep the air in your car nice and clean. And just like your furnace filter, they need to be replaced when they get dirty. Check your owner's manual or ask your service advisor at Gilmore's Auto Service, but they typically need to be replaced at around 12,000 to 15,000 miles (19,000-24,000 kilometers).

The filter is usually either under the hood or under the dashboard. Some are a little tricky to get to, so you'll want to have Gilmore's Auto Service take care of replacing them.

As we said, many people don't realize they have a cabin air filter and go to their shop complaining about a funky smell in the ventilation system. It turned out to be a cabin air filter that was long overdue for replacement – really dirty and starting to smell. A quick replacement and they were on their way and smelling fine.

Walnut Creek residents who are allergy sensitive can really benefit from a cabin air filter, as it keeps allergens to a minimum. If you're one of them, you'll want to stay on top of your filter replacement schedule.

Of course if you do a lot of driving around the Walnut Creek area in dusty or polluted conditions, you'll need to change your cabin air filter more often.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

Fuel Saving Tip: Slow Down Around Walnut Creek

There's not much we can do about the price of gas in Walnut Creek, CA, but we do quite a bit about how much we use as we're driving on our Walnut Creek streets.

Our driving habits can dramatically affect our fuel economy.

The first thing we can do is watch the 'go-pedal.' Hard acceleration just sucks the gas. Gently leave stop lights and plan lane changes so you don't need to floor it. That can save you hundreds of dollars a year.

Go a little slower on the freeway. Once you're going more than 65 miles an hour (105 kilometers per hour), your fuel economy starts to drop dramatically. Leave early so you don't need to rush to be on time. And cruise control is your friend – steady speed uses less gas.

Plan errands ahead. Make fewer trips by combining errands.

Hey at current gas prices, a lead-foot might as well be a gold foot.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net

Fresh Air Inside Your Car in Walnut Creek

Air quality has certainly become a hot issue in our modern world. We install air filters on our ventilation systems and in our vacuum cleaners. There's a filter that cleans the air going into our vehicle's engine — so why not one for the air in the passenger compartment?

Foreign and domestic vehicle manufacturers haven't been ignoring the issue. Cabin air filters are becoming a standard feature on newer vehicles. These filters can clean particles out of the air down to three microns, which accounts for pollen, dust and most pollutants. Walnut Creek residents who suffer from allergies or have a respiratory disorder should be a lot more comfortable. And even if you don't have a medical need for the filter, the cleaner air in your car just might help you breathe better, figuratively as well as literally.

Cabin air filters are still fairly new in the Walnut Creek area, so you'll have to check your vehicle owner's manual to see if you have one. If you do, your routine car care will have to include changing the filter as part of your preventive maintenance. The owner's manual will give recommendations on how often the filter has to be changed, but if the air where you live in CA is particularly dirty or if you're prone to hay fever, you may want to change it more often.

Your friendly service advisor at Gilmore's Auto Service can also offer suggestions on how often to change your cabin air filter in your Walnut Creek area. They're the ones who actually see the dirty filters, after all.

There is no standardized location for cabin air filters. Walnut Creek residents can usually find them in the vehicle engine compartment or under the dashboard, but they might be somewhere else. So the ease of changing the filter will depend on its location. Some are readily accessible, but others make you wonder how they got installed in the first place. Bring your car into Gilmore's Auto Service and we will locate your cabin air filter for you.

However, if you have a newer vehicle, it's good auto advice to find out if it has a cabin air filter. If it does, you should change the filter regularly. A sure sign that a filter needs to be changed is that the interior of your vehicle will start to smell bad. That smell is exactly how some Walnut Creek drivers discovered that they had cabin air filters in the first place!

Cabin air filters are just one more way we have to stay safe, stay healthy and stay on the road in CA.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430
http://www.gilmoresauto.net