AUTONET TV

The Straight and Narrow: Power Steering Service at Gilmore's Auto Service

Service to a vehicle's power steering system is part of preventive maintenance for  Walnut Creek auto owners. This system provides power to the steering wheel so you can turn it with ease. Without power steering, all of the power to turn your vehicle's wheels would have to come from you.

The central element of most power steering systems is a pump. The pump pressurizes the power steering fluid, and it is this pressure that provides auxiliary steering power. A belt connected to the engine usually powers the pump, although some systems use an electric pump. Some newer vehicles have an electric motor that directly provides the power steering boost.

Pressurized fluid moves from the pump to the steering gear through a high-pressure hose. A low-pressure hose returns fluid to the pump. Power steering fluid cleans, cools and lubricates the system.

Walnut Creek drivers should remember that fluid levels in the power steering system should be checked at every oil change. Low fluid levels can damage the pump, which can be expensive to repair. Low fluid levels may also indicate a leaky hose in the power steering system, so it is a good idea to inspect the hoses, especially if your fluid levels are low.

Power steering fluid breaks down over time, losing its effectiveness. It also gradually collects moisture, which can lead to corrosion in the steering system. So the fluid needs to be replaced occasionally. You should check with your owner's manual or ask your service advisor at Gilmore's Auto Service to learn how often this fluid should be replaced.

When your fluid is replaced, your technicians at Gilmore's Auto Service will remove the old fluid and replace it with new. Power steering fluids are not all created equal; the fluid has to be compatible with your hoses and seals. Gilmore's Auto Service can ensure that you get the right fluid for your vehicle, or you can consult your owner's manual.

Signs that your power steering system is in trouble can include the following: a steering wheel that is hard to turn, auxiliary steering power that cuts in and out, or a whining sound coming from the pump. Also, drivers in Walnut Creek who are not topping off the power steering fluid on schedule may hear squealing coming from the engine belts.

To protect your steering system you should never hold the steering wheel in the far right or far left position for more than a few seconds at a time. This can wear out your pump in a hurry.

Preventive maintenance for your steering system primarily involves the power steering components, but your steering system has other parts that can wear out or be damaged by rough CA driving conditions. Such parts include the ball-joint, idler arm, steering gear, steering-knuckle and tie rod. Signs that they are in need of attention include play in the steering wheel, a vehicle that wanders, uneven tire wear and a steering wheel that is off-center. Walnut Creek drivers should have their alignment checked annually. This check-up can reveal bent or damaged steering components.

For answers to other questions about your steering system, or for auto advice on any type of vehicle maintenance, check with the team at Gilmore's Auto Service. We can steer you in the right direction when it comes to quality car care.

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

What Is an EGR Valve? (EGR Valve Service)

If you've ever felt your vehicle hesitate, go, then hesitate again, you might think there's something wrong with the transmission.  After all, it's not moving smoothly  down the road.  But there are plenty of malfunctions that can cause those symptoms, one of them being something you may have never heard of: the EGR valve.

EGR stands for Exhaust Gas Recirculation. It's a system that channels small amounts of exhaust back into the engine to cool down the cylinders and reduce polluting gases.  Those include nitrogen oxides that can cause smog. The EGR valve regulates how much of the vehicle's exhaust gas is recirculated. After years and long distances traveled, that valve can get clogged or fail. Sometimes the EGR valve can stick open.  When the EGR valve isn't working properly, your vehicle can start releasing those nitrogen oxides and pollute the air.

The symptoms of a malfunctioning EGR valve include:

• Engine losing power
• Engine idling roughly
• Pinging and knocking sounds in the engine
• Stalling and hesitation
• Fuel economy decreasing
• Check Engine light illuminated

Depending on its condition, the EGR valve can be cleaned or it may need to be replaced.  Consult with your service advisor to see what options are recommended to you.

The EGR system is part of your vehicle's pollution and emissions control equipment. If you care about keeping our planet's atmosphere clean, you'll want to make sure it's doing its job—for everyone's benefit.

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

Considering an Alternative Fuel Vehicle in Walnut Creek?

There is a clear and vocal demand in Walnut Creek and nationally for a reduction in air pollution and our dependence on fossil fuels. This is what is driving the CA market for alternative fuel vehicles. There are a number of these vehicles on Walnut Creek area roads today, and many more being developed. Yet each of these vehicles has its own advantages and disadvantages. Walnut Creek auto owners should learn what these advantages and disadvantages are before running out and purchasing one of these alternative fuel vehicles at your nearest Walnut Creek dealership.

Walnut Creek drivers should carefully research the vehicle care before buying an alternative fuel vehicle, as it may or may not coincide with the standards for gasoline vehicles. You should look at costs as well; these vehicles may help save our environment here in Walnut Creek, but that might not represent a savings to your wallet. You'll need to decide what you can afford and what will work for your lifestyle. Also, your choice of vehicle may be affected by what fuels are available in your area. Switching to an alternative fuel vehicle is not a bad decision, but it should be a carefully considered one.

Flex Fuel Vehicles
Flex fuel vehicles can run on gasoline or on a combination of 85% ethanol and 15% gasoline. Because of the 85% ethanol content, this fuel is commonly called E85 in CA.

Ethanol is made from corn. So flex fuel vehicles lessen our dependency on fossil fuels. But they also raise the price of corn, which is a basic foodstuff in some areas of the world. Whether replacing fossil fuels with corn is a good idea is hotly contested right now.

One piece of Gilmore's Auto Service auto advice before we move on: do not put E85 into your vehicle unless it has an engine designed for flex fuels. Because of the high ethanol content in E85, engines need special seals and gaskets to function properly on this fuel. Running an ordinary engine with E85 can lead to gas leaks and fires.

Diesel
Diesel engines are nothing new on CA freeways, and many get great fuel economy. Diesel fuel can now be made from vegetable oil and other renewable sources. A diesel fuel made from algae will soon be on the market in the Walnut Creek area.

Natural Gas
Natural gas is less expensive than gasoline in Walnut Creek and burns more cleanly. Also, gasoline engines can be adapted to run on compressed natural gas, and many natural gas vehicles are already on Walnut Creek roads. You can even install a special pump in your home gas line to use to fuel your vehicle. If you are interested in converting your gasoline engine to run on CNG in Walnut Creek, ask your Gilmore's Auto Service service advisor about it.

On the other hand, an engine running on natural gas is not as powerful as one running on gasoline. Also, the tank you need to store natural gas is large—it takes up nearly the entire trunk of your car. Further, refueling stations are still few and far between in some CA areas, or even unavailable in many parts of the country.


Electric Vehicles
Electric vehicles were all the rage in CA some years ago. But their limitations were quickly realized by Walnut Creek auto owners. These vehicles won't come into their own until we find ways to improve their batteries. Currently, many of these cars have a short range before their power runs out and can only be realistically used close to home. However, they are easy to recharge since they can be plugged in at home, and there are many researchers working on improving the battery technology in these vehicles. They may yet be the vehicles of the future.

Hybrids
Hybrids have been among the most successful alternative fuel vehicles here in Walnut Creek and throughout the county. A hybrid gets its name because it has both a gas or diesel engine and an electric motor.

There are two types of hybrids. The full-hybrid relies on the electric motor for power, but the gas (or diesel) engine generates power for the battery. Thus, while still consuming fossil fuels, it uses less of them than a standard vehicle and also reduces harmful pollutants. Also, it overcomes the range problem of the strictly electric vehicle.

In a mild hybrid, the electric motor assists the gas or diesel engine in powering the vehicle. Thus, it uses more gasoline or diesel than full hybrids and has higher emissions. But mild hybrids are available in larger body models like full-size pickups and SUV's.

A Note of Caution about Hybrid and Electric Vehicles
One last note before we leave the subject of alternative fuel vehicles. The battery in an electric or hybrid vehicle is not as tame as the one in a standard vehicle. They carry enough voltage to kill you. These are not do-it-yourself vehicles when it comes to preventive maintenance or car care. Only a trained technician should work under their hoods.

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

Gilmore's Auto Service Automotive Tips: Alternator

Your alternator makes electricity to start and run your engine and all of the vital electrical systems in your vehicle. That’s everything from the on-board computers to the turn signals. And of course there is the entertainment system, seat heaters, power windows and everything you plug into the power outlets. After your alternator makes enough electricity to do all that, it recharges your battery with what’s left over.

When Walnut Creek drivers constantly have a low or dead battery, the alternator is usually a prime suspect. However, the alternator is just one vital component of the starting/charging system, and a problem with any of the other components could be the actual cause.

In addition to the alternator, the charging/starting system includes the battery, starter, serpentine belt system and all of the electrical cables that connect them. Your Gilmore's Auto Service service advisor has a systematic process of testing components and connections to get to the source of your trouble. The initial symptoms determine where to begin the diagnostic process, and he follows the procedure until he tracks down the culprit.

For example, diagnostic tests at Gilmore's Auto Service could reveal that the alternator is not generating enough electricity to keep the battery charged. Is the alternator bad? Not necessarily. A worn serpentine belt tensioner could be allowing the belt that spins the alternator to slip. So the perfectly good alternator is not spinning at the proper speed. The solution for Walnut Creek drivers is to replace the serpentine belt system – not the alternator.

The good news for Walnut Creek drivers is that our highly-trained technicians at Gilmore's Auto Service can properly diagnose all your vehicle troubles and make the necessary repairs to get you back on the road in Walnut Creek.

Give us a call.

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