OVERHEATING – ALL YOU NEED TO KNOW (PART 1)

Those who have experienced it (overheating) before will definitely tell you that it is one incident that they don’t pray to witness again.

OVERHEATING is one word that has been on the lips of many people, it doesn’t knock before sweeping right through and when it does come in, it can be very tricky to diagnose.

Now for the benefit of those who have not witnessed the scenario before, I will give a quick description of what overheating is.

Overheating is a condition in which your engines temperature rises to a very critical level, usually above the middle of the gauge and towards the red line. It arises as a result of a problem in the cooling system.

The issue of overheating is actually not a fault, it is a symptom and it is at this junction that many mechanics and DIY’s get it wrong because they always try to solve the symptom instead of looking for the fault.

There are a whole lot of things that can cause overheating but we will be treating only one in this article, other causes will be treated in subsequent articles.

The very first on the list of causes that i will be discussing will be low coolant.

In the cooling system article, I discussed about coolant and its importance.

It is the lifeblood of the cooling system as it is the one that absorbs the heat from the engine. In a case where you have insufficient coolant, then the efficiency of the system is reduced and when this happens heat absorption becomes low thereby leaving this heat to build up in the engine.

A low coolant level can be caused by a leak either external or internal or from outright carelessness, although the latter is not all that common.

An external leak in the cooling system will be found around areas like the water hoses, the water pump, a leak in the radiator, or can even come from a leak in the coolant reservoir.

Sometimes a bad radiator cap will also result in this because it can no longer hold pressure so the coolant will keep flowing freely into the reservoir.

An internal leak will be a little more difficult to diagnose because it’s something you cannot see and it could be coming from anywhere in the system.

One good way to know that you have a leak is when you have to top your coolant every day. The very tricky thing about a leak in the system (especially an external leak) is that you will not notice the leak.

This is because the leak will only occur when the system is under pressure (except it is a very big one) and this pressure will be achieved when the engine is hot and coolant like any other fluid will evaporate at that temperature.

So what you will have is a case where as the coolant is leaking out it is evaporating and this is what at times confuses most mechanics and DIYs. Now someone must be wondering –“if I need pressure to detect the leak and I can’t do it while the engine is hot, then what do I do?”

Its pretty simple –a cooling system pressure test.

Those who are conversant with the radio program would have heard this phrase a couple of times. It is an automotive test that involves pressurizing the cooling system to a certain pressure, so as to simulate a driving condition.

When this happens it becomes easy to detect whether there is a leak and where it is coming from.

Coolant leak is just one of the many causes of overheating and now you know that checking your coolant is very important. When next you have an issue of overheating, you can go ahead to perform the test on your vehicle.

Source

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June 2014 Sales

June 2014 Sales

Toyota Siena (2007 Model - Tokunbo) - Sky blue - N2m

Ford Bus E350 (2007 Model - Tokunbo) - White - N1.8m

Toyota Camry (2001 Model - Tokunbo) - White - N1.1m

Nissan Exterra SUV (2001 Model - Nigerian used) - Blue - N1.2m



Honda Accord (2003 Model - Tokunbo) - Pencil - N1.5m

OPTIONS:

Engine: V4
AC: Yes (needs gas)
Airbag: Yes
Audio: CD/TAPE/AM/FM Player
Interior: Fabric
Gear Transmission: Automatic
Window: Power
Door Lock: Central lock
Wheel: Alloy
Keyless Entry

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SAFETY PRECAUTIONS FOR CAR CARE

SAFETY PRECAUTIONS FOR CAR CARE

You should realize that there are potential dangers to be avoided when you check or work on cars. For example, an engine that has been running has parts that are hot enough to cause serious burns. In addition you can be injured seriously if a raised car, which is supported only by a jack, falls on you.

A little common sense will go a long way toward avoiding problems. Don’t take chances. Avoid unsafe situations and follow all safety recommendations. To learn about specific safety hazards to be avoided and specific safety precautions to be taken on a particular job, ask your instructor or refer to the manufacturer’s service manual before you begin work. As a general guide for your continuing safety and health, read about and follow the safety practices listed here. Learn and remember these rules before you go on to the review of maintenance levels that follow:

• Wear eye protection whenever you work on cars. Safety glasses, goggles, or a full-face shield can prevent eye injuries, infections, and possible blindness.
• Remove watches, rings, neck or ankle chains, and all other jewelry from your body before you start work. These items can be caught by moving parts and cause serious injury.
• Do not wear loose clothing that can be caught in moving parts. Tuck in shirttails and roll up long sleeves or wear short-sleeved shirts or blouses when you work on a running engine.

 

• If you have long hair, tie it into a tight ponytail. Then pin the ponytail to the top of your head or stuff it down the back of your shirt or blouse.
• Work in well-ventilated areas. Never run the engine in a closed garage or other enclosed area. Carbon monoxide gas from the exhaust is poisonous and cannot be seen or detected by smell.
• Work on cars only when you’re feeling fit and well. Never work on cars if you are tired, ill, or have taken drugs that can cause drowsiness or that can impair mental or physical functioning.
• Whenever possible, work with friends or partners. Difficulties and safety problems may arise with which you may need assistance.

• Perform all repairs and maintenance in accordance with the car manufacturer’s recommendations, as printed in the manufacturer’s service manual.
• Make sure you have the correct tools, parts, supplies, and materials before you begin work. Do not substitute or try to improvise with makeshift tools, parts, or supplies.
• Have a source of fresh clean water nearby to flush out eyes and minor wounds. It is also a good idea to have a first-aid kit handy whenever you work on cars.
• Whenever possible, avoid working on a running engine or one that is still hot. Serious burns can result from touching a hot exhaust system, cooling system, or other engine parts. If possible, allow the engine to cool down for several hours before you begin work.
• If you must work on a running engine, stay clear of all moving parts, including belts, pulleys, and fan blades. A spinning fan may be impossible to see. Serious injury or loss of limbs can result if you are caught in moving machinery.
• Work in well-lighted areas and use a safety droplight with a cage around the bulb. If a bare bulb breaks, the hot filament can ignite fuel or other flammable vapors and cause a fire.
• Position the car on a flat and level surface before you begin work. Never work on a car that is on an incline.
• Put the transmission in PARK (automatic transmission) or in a gear (manual transmissions) and set the parking brake firmly.
• Always place large wheel chocks or blocks both in front and in back of the wheels that remain on the ground to prevent the car from rolling, especially if you are going to raise the car.
• Raise and support the car properly and safely, according to the recommendations in the manufacturer’s service manual. 
• Never put any part of your body under a car that is supported only by a jack. A jack is only used to raise or lower the car. Always use safety stands, or jack stands, to safely support a car.
• Always disconnect the ground cable, typically the negative (–) battery terminal, when you work on the electrical system. This precaution will prevent sparks, fires, and damage to electrical parts.
• Have a fire extinguisher that will extinguish Classes A, B, and C fires
• Do not use a heater with an open flame to heat the work area. Use an electric heater placed as far away as possible from the car and from any gasoline or other flammable liquids. Heat and other ignition sources can ignite fuel vapors, flammable liquids, and hydrogen gas produced by the battery.
• Collect oil, fuel, brake fluid, and other liquids only in approved metal or heavy plastic containers that can hold more liquid than you expect to drain. Do not use food or beverage containers that might be reused. Dispose of liquids in accordance with all local and federal environmental and safety standards.
• Avoid spilling or storing fuel or other flammable liquids near any source of open flame or spark, including gas water heaters and electrical switches. Wipe up all spills immediately. Store soaked rags and flammable liquids in approved metal safety containers with tight-fitting lids to prevent fires

THE CAR AWARENESS SERIES - Concluded

 THE CAR AWARENESS SERIES - Concluded

Under a front-wheel drive trans-axle, or under a rear-wheel drive manual transmission or differential, there may be oil or grease spots. Inside the wheels, you might notice leaking brake fluid. Any of these signs could be warning you of trouble.
But don’t jump to conclusions; spots or fluids on the ground could have been left by another vehicle. If you are in doubt, check further wherever you normally park your car. Place a large piece of cardboard or several sheets of newspaper under the area of the car where you found the spots. Leave it there overnight. If something is leaking, you will find a fresh puddle on top of the cardboard or paper the next morning. Also try to note the location of the leak relative to the car. It may help you determine where the leak is coming from. But remember that as you drive, air flowing past the car can push these fluids toward the rear of the vehicle before it drips off. Also the fluids will flow downward from the source of the leak. Just to be sure, you should check the fluid levels to help determine which fluids may be leaking.
If you find brake fluid leaking onto the ground, you should have the car’s brakes inspected by a licensed professional technician as soon as possible. Brakes are your car’s most important safety system. Fuel leaks are extremely dangerous as gasoline is very flammable. Don’t start your car if you find a puddle of gasoline. Have the leak repaired immediately. In the series that follow, you will find more information about what these leaks may mean and what you can do about them. Just by checking regularly for tyre condition and for leaks, you have developed and used the first, most essential tool for effective car care—your awareness.

THE CAR AWARENESS SERIES

Gabson Olu Motors Car Awareness Series

This year is a different year in the life of Gabson Olu Motors and we indeed want to make a difference in the lives of our various customers at home and abroad. Therefore we introduced The Car Awareness Series to improve the awareness of car users and reduce the cost of maintenance of cars. The series will be updated bi-weekly and we will be open to questions and we will be ready to give you appropriate answers. We do hope that you will use the tools here to improve your car care and reduce unnecessary expenses on your car.

If you want to save money and increase the reliability of your car, you should try to take an active role in its upkeep and maintenance. If you don’t, you will eventually be forced to seek help for a major problem or breakdown. There are some simple things you can do to greatly reduce the chances of a major problem or breakdown. This book assumes that you are starting with little or no knowledge and that you want to learn what maintenance should be done for maximum dependability
and economy. You will also learn what tools you will need.
 

Whatever your reasons for learning about your car, the first tool you need is an increased awareness of your car’s maintenance and repair needs. Even if you don’t want to become a full-fledged technician, you should try to learn what maintenance should be done regularly. Take a few minutes to read through your owner’s manual and note the recommended maintenance schedules. Nothing thrives on neglect. Preventive maintenance can stop problems from occurring. With a small investment of time and interest, you can become aware of some of your car’s needs and help to avoid expensive breakdowns. For example, there are two simple checks you can make as you walk toward your parked car:
1. Look at the tyres. Soft tyres spell trouble. It pays to be sure that your car’s tyres are inflated properly, according to the car manufacturer’s recommendations. After your tyres are inflated, look at them carefully. It’s more difficult to judge when radial tyres are properly inflated because their sidewalls always have a characteristic bulge. Even so, each time you approach the car, look at each of the tyres and compare what you see with your mental image of properly filled tyres. If you’re in doubt, check them with a good-quality tyre pressure gauge. At the very least, you risk damage to expensive tyres by driving on them while they are under-inflated. At worst, you are risking your life.
2. Look for wet spots or puddles under or around the car. Puddles can spell trouble.
 

They can be:
Engine oil (brownish, oily).
Automatic transmission fluid (reddish, oily).
Power steering fluid (reddish or light brownish, oily).
Engine coolant (green, red, blue, or other watery, sticky liquid).
Brake fluid (clear to brownish, smells like ether).
Gasoline (clear, strong smelling, also a fire hazard).
Water (condensation from air conditioning system, no problem).

Questions and comments are welcome.

To be continued ...

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