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Archive for September 2025

How Far We've Come (Newer Vehicle Technology)

Posted September 28, 2025 3:51 AM

Automotive design has come a long way since the days of the Model T, especially when it comes to safety technology.  You can thank computers for a lot of the latest innovations.  Here are a few that have been making their mark in recent years.

Adaptive cruise control.  This is cruise control with a brain.  Not only will adaptive cruise control keep your vehicle going at a steady speed, it will also slow it down and even stop it if the vehicle ahead of you slows down and stops. 

Automatic emergency braking.  We've all been distracted while driving, and you've probably been in a situation where the driver ahead of you has suddenly stopped.  Or maybe your attention wandered for a minute and you looked up to see your vehicle closing in fast on the car ahead of you.  (After all, there are a lot more distractions in your vehicle these days.)  New systems that use cameras, lasers and other types of sensors will warn you to start braking.  If you don't heed the warning, they'll put on the brakes for you. 

Blind spot warning.  We all worry about hitting a car approaching from behind and on either side if we are changing lanes.  Rearview mirrors cover some blind spots but they're not foolproof.  Enter the blind spot warning system; it warns you with a noise or a light if a vehicle is in a spot you might not be able to see.

Lane departure warning.  We all try to stay in our lane, but sometimes our attention wanders.  If you start to drift out of your lane, new warning systems using cameras and other sophisticated sensors will tell you to get back in your lane.  Some send an audible warning, others use a vibration or warning light. Some will even steer your vehicle back into the lane. 

Rearview camera.  There was a time when trucks and SUVs were involved in horrible accidents because the drivers couldn't see what was behind them as they backed up.  Children and pets were among the tragic victims.  Now, inexpensive rearview cameras are required in the U.S. and Canada, saving lives and providing much more peace of mind for drivers of vehicles with rear visibility issues. 

It's important to make sure this safety technology is working correctly for these systems to be effective.  Your service facility can check and maintain these systems as the manufacturer recommends.

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



Why did my vehicle fail its emissions test?

Posted September 21, 2025 3:52 AM

We all want to breathe clean air and keep our planet green.  One of the ways to do that is by requiring all vehicles with internal combustion engines to pass an emissions test.  That’s because these vehicles can be big polluters.  

Everyone wants their car to pass the test so they can continue their day-to-day driving routine.  But then comes that one day when they tell you your vehicle has failed.  Why does that happen?

One of the most common reasons is that your gas cap is leaking or loose (or maybe you don’t even have one on your vehicle!).  The gas cap is supposed to seal in vapors, but sometimes its seals or gaskets dry out or crack. Replace it, and you’re good to go.

Another common reason your vehicle failed the test is that your catalytic converter isn’t doing its job. It is supposed to convert toxic gases from your engine into ones that don’t pollute the air.  There are many reasons the catalytic converter may not be working.  It may be physically damaged, or the steady flow of exhaust gases has fouled the converter. 

You may have a bad oxygen sensor. It’s supposed to measure how much oxygen is in your exhaust.  This can cause the air-fuel mixture to be too rich, resulting in too many hydrocarbons in the exhaust. Your ignition system may also have problems, such as worn-out spark plugs.  Dirty fuel injectors can contribute to excess emissions.

Believe it or not, a dirty engine air filter may be the culprit. If it hasn’t been replaced for a while, your vehicle may be emitting too many hydrocarbons -  something that will cause your vehicle to fail the emissions test.

You can usually avoid a failed emissions test by maintaining your vehicle regularly.  The best way to do that is by bringing it to our trained technicians, so your vehicle gets the service it needs, scheduled and non-scheduled.  Plus, you’ll be doing your part to keep our air clean.

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



To Fix or Not To Fix: That Is the Question.

Posted September 14, 2025 3:50 AM

No matter what vehicle you drive, when certain things break, you have to make a decision.  Should I get it fixed now, later or never?  Air conditioning is one of those things.  You can certainly live without air conditioning, but it sure is nice to have on a sweltering day.

Let's say your air conditioning breaks in the fall and you live in a climate where it gets quite cold in the winter.  Should you get it fixed now, wait until spring since it won't get warm until then or maybe not get it fixed at all?

That can be a tough decision.  There are several reasons air conditioning in vehicles break.  One is fairly simple: It could be an electrical problem, perhaps a relay or solenoid is not turning on the system.  It's also a fairly inexpensive repair and doesn't require hours of labor.

Or, the problem is that the coolant has leaked out.  Your service facility can find the leak and replace the parts that are leaking.  With a refrigerant recharge, you're back in business.  The repair costs vary, depending on the reason for the leak.

When air conditioning malfunctions involve a compressor, evaporator or condenser, the costs can be significant since parts and labor add up.  Depending on the age and value of your vehicle, you may choose to simply roll down the windows and live with it. 

Keep in mind that many vehicles in cold climates use air conditioning in winter.  Many vehicles automatically turn on the A/C when you use the defroster.  The A/C dries the heated air it blows on the windshield and side windows to eliminate fogging more quickly.  Outside conditions such as snow and ice can severely hamper visibility.  Add to that fogging on the inside and it can present very challenging conditions for the driver.

In order for all systems to be functioning optimally, a vehicle owner might feel it's worth it for safety reasons to get a broken air conditioner fixed, even if it is done right before the approach of cold weather.  Discuss these options with your service advisor so you can make the best decision for your situation.

Gilmore's Auto Service
2151 N Broadway
Walnut Creek, CA 94596
(925) 939-9430

 



Rubber Match (Tire Replacement)

Posted September 7, 2025 4:01 AM

A set of new tires isn't probably high on anyone's list of exciting purchases.  But since your life is literally riding on them, it's probably a good idea to know when it's time for you to buy new ones.

If you've been feeling your vehicle slipping more in wet weather or it takes a longer distance to stop, those are a couple of signs you may need new rubber all around. Here's how to make your decision.

First thing to do is look at your tires.  The surface of the tire that contacts the road is the tread. When that tire was new, the tread was deep (the grooves in the rubber that provide traction). If they're starting to look somewhat smooth, you have a seriously worn tire that definitely needs replacing.  Bring your vehicle in for us to look at your tires and we can check your tread with a tread gauge.

Also look at the sides of your tires.  If they have cuts or cracks in them, or if you see signs of bulges or scrapes made by hitting curbs or potholes, those could be signs of serious damage. 

Keep an eye on your tire pressure monitors.  If you notice one or more of your tires showing frequent pressure changes, that needs to be checked out. 

One other thing you probably didn't know is that your tires all have birthdays, and they're printed on each sidewall.  When you bring your vehicle in for us to inspect your tires, we can tell you how old they are. That's important because rubber deteriorates with age, even if they don’t have that many miles on them.  Tire manufacturers recommend replacing tires when they reach a certain age, usually from six to ten years old. 

Now the question is, which tires should you buy? That's one for your service adviser who can recommend replacements based on your driving style, the model of vehicle you own, where you drive most often, and other factors. 

Oh, and if you want your new set of tires to last as long as possible, remember to have them rotated regularly, keep the right pressure, and don't drive aggressively. 

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



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After moving to Walnut Creek I was in need of an auto service repair shop; through a referral I started taking my car to Gilmore’s. Over the last year or so I have needed to take my car in for a one or two issues as well as basic oil change & have been very happy with service. They are very thorough in their work & have been really good on keeping me updated on repairs or service in general. They also are good about following up and checking in after service has been completed to make sure everything is in working order. Everyone I have interacted with is very friendly and accommodating. Josh especially is really great. Although their service fees are a bit higher than those I paid at my previous shop, I feel like I’m getting my money’s worth. If you’re looking for a good Auto repair shop, I definitely recommend Gilmore’s!

, 12/08/2025

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