Car And Truck Brake Parts

Brake Harness

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Brake Harness
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As a professional truck driver I take your safety personally, with some of the maneuvers and decisions automobile drivers make reminds me daily that I am my brother's keeper. I'm looking out for you even when you don't look out for yourself.

It seems that everywhere you look there are advertisements that suggest if you are in an accident with a big truck call us we'll get you everything you deserve, this causes big truck drivers to be extra careful.

The space between a tractor-trailer and the vehicle ahead of it is for the safety of the vehicle in front of the tractor- trailer.

As a driver I'm always concerned about the safety of the drivers traveling the road with me daily. I know this message may not get to the people that actually need this but perhaps you can apply these safe-driving tips and help me save your life.

When the motorist cuts in front of the big truck without leaving plenty of room or without signaling, the driver has just placed himself/herself in danger, in an emergency stop situation there may not be enough room for the big truck to safely stop.

The tractor-trailer driver is constantly looking at the traffic conditions ahead. His/her goal is to prevent an accident by adjusting to the conditions of the traffic. His/her job is to anticipate hazards which the much shorter four wheel driver cannot see by looking as far ahead as possible.

Vigilantly watching the mirrors, constantly on guard of events other drivers may not be aware of checking for approaching danger. The tractor trailer driver calculates the stopping distance in front and applies the brakes preparing to stop. When the motorist jumps into that space if front of the truck unexpectedly there may not be enough time or distance to stop the big rig safely, and that is when you see a lot of blue smoke coming from the tires of a trailer as they slide on the roadway.

Especially as a city driver, the focus is watching for hazardous situations in advance to allow time to safely navigate around them and to recognize events that the average driver takes for granted. Traveling down streets that have multiple entry points, the truck driver scans for any moving vehicles or people that could possibly move into my direction of travel, in addition to watching the road we're watching driveways, people walking on the sidewalks, and much more. So when the unexpected happens we may have enough time to prevent an accident.

Key elements that play into the drivers calculations every single time the brakes are pressed to stop the truck successfully without harm or damage to others:

• The weight of the vehicle, there are three weights that are calculated very quickly, an empty trailer is easy to stop but in an emergency pressing the brakes to their max may cause the truck to slide past the stop point. While on the other hand in a fast stop, if the truck is heavy the weight in the trailer may still push the beyond the desired stop point.
• The space that is required at a traffic light, approaching a green traffic light the driver constantly is on the alert that the light may change at any moment. Once the truck passes a predetermined point and the traffic light changes the driver has no choice but to continue through the light if he feels that he cannot safely stop the truck.
• The vehicles in front, the driver assesses how much space there is between his/her truck and applies the amount of brakes to stop the truck successfully. When another vehicle suddenly changes lanes and get into the truck drivers path a new calculation is required quickly.
• The cargo may have a tendency to shift or to push the truck as the brakes are applied, it does not matter how tightly and well organized the load was when the driver left the shipper, braking hard will cause the cargo to shift, or spill if it's liquid, product has a tendency to fall off the pallet which it was on, the shift could be so great that the truck turns over in a curve.

It is impossible for a tractor-trailer driver to maintain control of the vehicle in a curve and perform a hard brake at the same time, and some automobile drivers never give it a second thought once they have successfully changed lanes as to the dangers that now are behind them.

There are several points here which all play into the driver's decision to stop the truck safely while looking out for the safety of others and transporting the cargo go hand in hand, and the driver considers these decisions every time the truck is in motion.

These calculations happen quickly, constantly, always considering the safety of others. To help keep yourself safe when approaching a green traffic light that has quickly turned to red, if there is a big truck also approaching the same traffic light in the next lane remember the truck driver is looking out for your safety and avoid a quick lane change into its path for your safety and other motorist on the road, you can help by thinking of these points often as you drive.

It's not likely the big rigs are going to leave the road anytime soon, so as you constantly think of these tips they will become second nature to you and you will reduce your chances of being crushed by a tractor trailer from behind.

My additional contribution to public safety is to share this information of the dangers I see as I drive it may help to save one life. Perhaps there could be a motorist that I come in contact with daily has read this article and implemented these tips and found them to be helpful. It is my goal to share as many tips as I can in hopes that this information is picked up and posted on as many websites as possible.

I would love the link love but that's not why I'm writing this article.
The satisfaction of sharing what I know has helped just one person who read it is enough.

Motion Energy Explained

Understanding the way energy works in conventional hybrid and all-electric vehicles can help to deepen our appreciation for them and may even make them more desirable for ownership.

Put simply, the definition of energy is the capacity to do work. Referring to the First Law of Thermodynamics, we know that all energy of the universe is constant to which none can be added nor can any be taken away. The law further states that energy cannot be created or destroyed; it can only change from one form to another. Examples of this include heat changing into light or chemical energy turning into mechanical energy for motion. Of course, these changes don't happen on their own.

Energy is divided into two categories: potential and kinetic. Potential energy is unused energy or energy waiting to be used. On contrast, kinetic energy is the energy of full motion. You might recall learning these concepts while in grade school during physics or chemistry class. Let's review how energy can change form as it applies to vehicles.

Potential To Kinetic

When an object at rest is being put into motion, potential energy is converted into kinetic energy. A tank of gas in a parked car is in a state of potential energy. Once the fuel is ignited and combustion ensues, the vehicle accelerates or moves with increasing speed. That movement is the state of energy in motion - kinetic energy. When that vehicle comes to a halt employing the use of brakes motion or kinetic energy is transformed into heat energy. This is still kinetic energy of moving energy; it's just in a different form. The heat energy that is released from friction caused by the application of the car's brakes is lost. Hybrid cars have found a way around this wasted energy with the technology known as regenerative braking.

An all-electric car and even a hybrid in some extent when already in motion has used up the potential energy (in this case, potential "chemical" energy) stored in the battery and has converted that potential energy into electrical energy. Electrical energy is what drives the vehicle's motor, which is transformed, into kinetic energy (in this case, kinetic "mechanical" energy). This kinetic energy is what moves cars wheels forwards or backward.

When the vehicle stops, a part of the kinetic energy is changed to heat because of brake pad friction, which simply escapes upwards since heat rises. Nearly all of this energy is preserved before it can escape as electricity. This is done with the use of regenerative braking and is that energy is restored in the vehicle's battery as potential (chemical) energy. If it were not for the regenerative braking system, this heat energy that could be captured and re-used later would simply be lost upwards into the atmosphere. Regenerative braking creates the effect of getting free energy. What is really happening is that less energy is being wasted.

Flywheel power units being incorporated into hybrids may be a way to use energy more efficiently and do away with having to convert heat energy back into stored potential energy. Though this is still in the developmental stage, there is evidence that it is close to a reality. With flywheels installed, stopping your vehicle will not turn the energy into heat, which is difficult to harness and re-use. Instead, the kinetic energy is channeled into a spinning flywheel. The flywheel itself is driven by a motor and that motor is powered by a generator. The energy is stored in the flywheel and is therefore not wasted at all. This would accomplish effective energy conservation.

About the Author

Bond Mejeh produces automotive related articles for Quick Cash Auto, a cash for cars service. Quick Cash Auto not only buys pre-owned vehicles of any year, make or model, but they also provide numerous articles about vehicle repair and automotive news.

Please visit QuickCashAuto.com for more information and be sure to check out our automotive blog.

Envoy has several warning lights on due to a recent disconnected wiring harness?

air bag light, abs light, emergency brake light and fuel low light/ gage not working either. What the heck happened. These things were fine before the disconnect. Is it necessary to have a professional to reset these lights or can it be done by me? Will it be expensive?

Your local auto parts store may have the computer box to hook to your Envoy to check fault codes. They may be able to reset the lights. It won't hurt to try, most stores check it for free.

Besides, the codes may tell you something. Otherwise you may need to use a wiring diagram from the shop manual to trace all the color codes of the wires that were disconnected, to make sure they were hooked up right.

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