Category: Transmission

Most cars and trucks have automatic transmissions, yet a lot of Azusa drivers only have a fuzzy understanding about what a transmission does. Think back to the last time you rode a bike in Azusa. You started out in a lower gear and shifted to higher gears as you went faster. Down shift for hills, stuff like that. Think of your legs as the engine – there’s an ideal speed you can pedal and you change gears to leverage the work you’re doing.

Lower gears for power on hills or for starting out. Higher gears for more speed. That’s what the automatic transmission does – it automatically starts in lower gears and shifts up to higher gears to go faster on California interstates. And automatically shifts back down to climb Azusa hills, pass or start up again.

sedan automatic transmissions have certainly gotten more sophisticated in recent years. They have more speeds than before: the base is four speeds, five is very common.

At Certified Auto Specialists, we routinely service transmissions with six speeds and several have seven or even eight speeds. As you can imagine, this means more parts. Any they all have to fit into roughly the same space.

Transmissions are computer controlled these days, with some high end transmissions having two or three computers. Transmissions are engineered to last. But they are also engineered to tighter tolerances. If a portion of the transmission is starved for lubrication, it can lead to failure.

Not enough fluid can starve the transmission or dirty transmission fluid can clog small passages in the transmission, then the lubricant is blocked and can’t get to all the parts to protect them, so they wear out prematurely. The technicians at Certified Auto Specialists see far too many transmissions that needlessly failed due to neglect.

And, as you can imagine, repairing one of these new transmissions at any Glendora service center can be quite costly. That’s why manufacturers have a schedule for how often you should change the fluid and what type of fluid to use.

It’s really important for Azusa motorists to carefully follow the manufacturer’s transmission service schedule.

At Certified Auto Specialists in Glendora, we hope you never become shiftless in Azusa because you didn’t take care of your transmission.

Let’s talk about transmission service. It can be easy to forget about getting your transmission serviced because it doesn’t need it very often. It’s easy to remember to change the engine oil – you know, every 3,000 miles or 5,000 kilometers. But proper transmission servicing keeps your car running smoothly and helps you avoid costly repairs down the road.

The transmission undergoes a lot of stress. The grit you see in used transmission fluid is actually bits of metal that wear off the gears in the transmission. In addition to that, the transmission operates at very high temperatures. Usually it’s 100 to 150 degrees higher than engine temperatures. Those high temperatures eventually cause the transmission fluid to start to break down and loose efficiency.

As the fluid gets older, it gets gritty and doesn’t lubricate and cool the transmission as well – leading to even more wear. The fluid can actually get sludgy and plug up the maze of fluid passages inside the transmission. At best, your transmission won’t operate smoothly. At worse, it could lead to costly damage.

When your transmission is running properly, it transfers more power from your engine to the drive wheels, and improves fuel economy. That’s why manufacturers recommend changing your transmission fluid at regular intervals. Your owner’s manual has a schedule for transmission service and, of course, your service center can tell you what the manufacturer recommends.

Hot and dusty conditions; towing, hauling, stop and go conditions and jack rabbit starts all increase the load on the transmission and its internal temperature. That means you need to change the fluid more often. A good rule of thumb is every 35,000 miles, 55,000 kilometers or two years. If your manufacturer suggests more frequent intervals or if you’re driving under severe service conditions, you will need to change it more often.

Most service centers have the ability to perform a transmission service while you wait and the cost is quite reasonable. It’s downright cheap when you think about how much a major transmission repair can cost! Your service technician will know the right type of transmission fluid to use. If it’s getting to be time to have your transmission serviced, do your car a favor and have it done. If not this time, then on your next service stop.