Saturday, September 15, 2007

On The Road To A Breakdown ??? ( part 4 of series)


Hear that hissing sound and see steam coming from under the hood????

It's probably a busted radiator hose...

There are several hoses on a cars engine and each one serves a different function.

The Upper Radiator Hose:

Which carrries coolant from the hot engine into the radiator to be cooled.

The Lower Radiator Hose:

Which carries cooled down coolant back into the engine via the water pump.

The By-Pass Hose:

Which carries coolant from the water pump into the thermastat for faster engine warm-up.

The Heater Hose:

Which carries warm coolant from the engine into the passenger compartment heater then back to the radiator

With today's smaller engine compartments and higer output engines.

Hose failure is caused by excessive heat, contaminants, and friction caused by parts rubbing against them.


There are several ways that you can check hoses. After the engine cools

Visual inspection:

Look at all your hoses and see if there are any cracks or swelling on the exterior of your hoses. also look for signs of coolant seepage around each hose connections.

Physical inspection:

squeeze each hose and se if it's brittle or spongy feeling. Also feel the clamps and see if they are loose.




Replacing A Hose...


Gates engineers recommend that all coolant hoses be checked when the system is being flushed and antifreeze replaced -- about every two years -- or whenever servicing of the radiator or water pump is required. Hoses showing obvious signs of wear, and those more than four years old, should be replaced immediately. Most EPDM hoses tend to bond to metals, so removal of coolant hoses from fittings must be handled carefully. It is important to avoid forcing or prying a hose to prevent damaging the fitting. Instead, use a sharp knife to cut off a hose .


Always check the spout to be sure it is not distorted or corroded. There should be no sharp edges, or burrs, which could damage the hose. Always clean the neck of the spout with a wire brush or emery cloth.

When installing a hose, dip the ends in coolant to lubricate it and slip clamps over each end. In cold weather (25¡F to 30¡F), the hose may be stiff. Warm the hose with hot water.

After slipping the clamps on the hose, push the hose onto the spouts, installing the engine end first. If the hose does not fit properly, remove it and reverse the ends. Whenever hose replacement is required, it's a good practice to also replace the clamps.


Finally, tighten the hose clamps, and refill the radiator to the recommended level. Also, check the vehicle's owners manual. Certain vehicles must have all the air bled from the system and have bleeder valves to do so, usually located on the thermostat housing.

Sunday, August 19, 2007

On The Road To A Breakdown ??? ( part 3 of series)


One of the most abused parts on a cars engine is your belt or belts.
Depending on how and where you drive,effects the life and performance of your belts.
Worn parts such as pulley's or pulley misalignment along with heat and adverse weather conditions can cause premature belt
failure.

In the old days you could lose a belt (v-belt) and still make it to the nearest gas station. Not now day's.
Most cars only have one belt(serpentine belt) that runs all of you engines external
components, (air conditioning, power steering, water pump, alternator, cooling fans) .
Lose that belt and presto your on the side of the road, waiting for a tow truck.

There are several ways you can prevent such a problem. And that's by checking your belts on a regular basis.
Looking for signs of wear and fatigue are easy.

(Below are a few sure signs of problems.)



Also you can hear a belts symptoms.
Listen for any chirps, squeal's, or maybe even a rumble noticed especially upon starting your car in the mornings.




"Remember it's easier to open your hood at home than on the side of the road at 12 at night, on a deserted road in the middle of nowhere!"

Saturday, August 11, 2007

On The Road to A Breakdown ??? (part 2 of series)


Your car's radiator serves an essential part of your vehicles cooling system. It is designed to dissipate heat from your engine , which in turns reduce friction on the internal parts of your engine. Which helps keep your oil from breaking down and thus protecting your engine from breakdowns. As Your engine ages metal and debris can get trapped in the radiators causing it to cool less efficiently.




There are several components that are actually part of your radiator...







Inlet Tank: This is the area of the radiator ( usually at the top of the radiator) where the hot water/coolant from your engine enters the radiator for cooling in the radiator.

Outlet Tank: The area(Usually at the bottom of your radiator) where the coolant is sent after being cooled by the radiator coils.
Inlet/Outlet Connections: The short tubes where the radiator hose connects to the radiator.

Core: The area where the liquid gets cooled. It is composed of metal tubes and many zig-zag shaped fins. The coolant passes through the tubes, and the heat from the liquid passes to the fins and then is dissipated into the air.

Cooling Tubes: The 'pipes' that send the coolant through the radiator. Generally, more tubes indicate more cooling capacity.

Transmission/Engine Oil Coolers: These are devices that are constructed inside the tanks of the radiator to transfer heat from transmission oil/engine oil to the liquid coolant for heat dissipation.

below is a pic of damage to the inside of a radiator.


Not all radiator problems are internal, some are caused by
road debris and the climate or area in which you live.
below shows a couple of radiators damaged from deterioration and foreign objects...


Sunday, July 15, 2007

On The Road To A Break Down ??? Part 1 of a Series

DON'T OVER LOOK YOUR
ANTI-FREEZE...



Click on pics to enlarge

Your engine will only survive the summer heat and long distance travel if your cooling system is performing at it's optimum peak. Which means that your Anti-Freeze must be in good condition.

"How do I know if my Anti-Freeze is OK ? "

Well, first let's run through some cooling system basics.
There are many components that make up your cooling system.



There are many components that make up your cooling system.





  • Antifreeze



  • Radiator



  • Belts



  • Hoses



  • Thermostat



  • Water pump


  • Pulleys



  • Heater Core

    In this series of articles, I will cover all components of the cooling system and they're purpose.

    So lets start with Anti -Freeze.
    With the technology of the car manufactures and the ever imposing lets make it better. Anti-Freeze has changed drastically. Today's engines require a certain type of coolant. While yesterdays cars only had one type of coolant today's cars have several different types. There's green, red, orange, and yellow. And if that's not enough to confuse you. Each one has a specific purpose for a specific vehicle. Unfortunately, identifying the type of coolant that is in the cooling system is not always easy. You can't go by color because it varies.
    ----------------------------------------------------------------------
    Most conventional two-year antifreeze's for north American domestic vehicles is dyed green. But Saturn and some European makers also use green dye for their extended life coolants. Dex-Cool extended life coolant, which is used in new GM vehicles, is dyed orange to distinguish it from ordinary antifreeze. If intermixed with other types of antifreeze, the color may or may not change depending on the dosage. GM warns that intermixing extended life coolant with ordinary coolant reduces the coolant's life to that of the ordinary coolant
    To add to the color confusion, some European and Korean coolants are dyed blue. Mercedes uses a yellow dye in its coolant. Toyota's new extended life coolant is dyed red. Intermix any of the above and its hard to tell what color the coolant may become.
    The real difference between all these EG coolants is in the additive package. Traditional antifreeze formulas for domestic applications with aluminum radiators, cylinder heads or blocks contain a high level of silicates (which is not really needed in cast iron engines with copper/brass radiators). Silicates form a protective barrier on aluminum that protects the metal. The additives in European and Asian OEM antifreeze's, however, contain less silicates and rely mostly on borates to inhibit corrosion. European antifreeze's also contains no phosphates because hard water can react with phosphates to form calcium and magnesium sediments. The Asians use phosphates but no borates and low or no silicates because they say borates may actually add to the aluminum corrosion problem if the coolant is neglected.
    The extended life coolants use an entirely different corrosion inhibiting chemistry that uses carboxylate organic acids instead of the silicates, phosphates or borates.

    Below is a chart found at:
    http://www.peakantifreeze.com/
    ANTI-Freeze Chart
    GM / 1994 or Older/ Green
    GM /1995 or Newer/ Orange
    Chrysler / 2001 or Older/Green
    Chrysler / 2002 or Newer / Orange
    Ford / 2001 or Older / Green
    Ford / 2002 or Newer / Yellow
    Asian / All / Varies by OEM

    European / All / Varies by OEM
    Heavy Duty Diesel / All / Varies by OEM
    * Remember that this is strictly a guide and you should check your owner's manual for specified antifreeze usage.*

    ***You Might Also Find The Chart Below Handy***

    http://www.gates.com/downloads/download_common.cfm?file=MOTORCoolantFeature.pdf&folder=brochure

    Now, That you know the types of coolant lets, look at why it fails.

    Under-hood temperatures during summer driving often exceed 280 degrees F. Heat from within the cooling system and under the hood breaks down the coolant, hoses and belts, putting a strain on the water pump and clogging radiator and engine passages with impurities and debris that cause corrosion.

    Another form of damage to the cooling system is caused by "electrolysis" A condition where electrical current is introduced into your engine via the electrical grounds or leaking electrical components. Electrolysis causes cooling system corrosion. When enough degradation occurs, any additional stress—such as low speed, high rpm driving (as when towing uphill)—may cause overheating.

    To check your cooling systems condition you only need a few tools.
    shop rags
    anti-freeze tester (local hardware store or auto parts house)
    small volt meter



    After the engine has cooled...Remove the radiator cap with a rag or gloves and insert the antifreeze tester and squeeze bulb to fill up tester with coolant , the float will point to a temp your system is good for(depending on the climate where you reside will depend on your results. In Texas the degree's vary from about 32 degrees to below 20 degrees). If system isnot ok then I would suggest that you take it to a shop and have the cooling system flushed and refilled with the proper coolant. if it's ok ok then proceed with the next test.


    Touch the tip of the black lead to the negative (-) AND side of the battery, negative-to-negative or positive-to-positive.
    Install the second lead in the coolant touching the coolant only.
    Read the DC and AC voltage with all electrical systems ( radio,a/c ete...) tuned off.
    Voltage of zero to .3 is normal in a coolant of cast iron engine. Such an engine will be destroyed with time by .5 volts, and engine manufactures are reporting .15 volts will destroy an aluminum engine.

    If it is .5 or higher, Have your vehicle's electrical system checked out and have the cooling system flushed..

    CAUTION:

    ***NEVER OPEN A HOT RADIATOR***

    Always keep antifreeze securely stored to protect yourself and others. Toxic materials such as lead and benzene might be found in automotive cooling systems. These can also be present in used antifreeze.
    =========================================

    For more information:

    Click on the sites below.


    American Association of Poison Control Centers
    Animal Poison Control Center



Saturday, June 23, 2007

Summer Road Trip...Are You Ready


You Ready For The Road?

An average of 13,000 Americans are killed between Memorial Day weekend and Labor Day, some a result of unperformed vehicle maintenance, according to the National Highway Traffic Safety Administration. Each year, neglected maintenance leads to more than 2,600 deaths, nearly 100,000 disabling injuries and more than $2 billion in lost wages, medical expenses and property damage.

Most mechanical failures can be traced to neglected maintenance. For example, the U. S. Department of Transportation reports the leading cause of mechanical breakdown on our nation?s highways is overheating, a condition that is easily avoidable. Other deficiencies that are simple to detect include low antifreeze/coolant, worn or loose drive belts and defective cooling system hoses.

Checking tire pressure and inflating a tire costs nothing, yet an average of 21 percent of cars inspected in check lanes during National Car Care Month have under inflated tires. This can lead to a blowout and a serious accident.


Fuel Saving Tips

Cause--------------------------------------Effect MPG---------------------Penalty up to

Underinflated tires------------------- Increase rolling resistance----------------- 1-2 mpg

Dirty air filter----------------- Causes excessively rich fuel/air mixture---------- 2.0 mpg

Worn spark plugs------------- Cause inefficient combustion, wasted fuel---------- 2.0 mpg

Worn O2 sensor --------------Unable to detect and adjust air/fuel mixture -------3.0 mpg

Dirty or substandard engine oil----- Increases internal engine friction --------------.4 mpg

Loose or faulty gas cap -----------------Allows fuel to evaporate ------------------2.0mpg

Potential loss in fuel economy if all of the above were neglected 11.4 mpg


The Car Care Council offers these fuel-saving tips:

Vehicle gas caps -- About 17 percent of the vehicles on the roads have gas caps that are either damaged, loose or are missing altogether, causing 147 million gallons of gas to vaporize every year.
Underinflated tires -- When tires aren't inflated properly it's like driving with the parking brake on and can cost a mile or two per gallon.

Worn spark plugs -- A vehicle can have either four, six or eight spark plugs, which fire as many as 3 million times every 1,000 miles, resulting in a lot of heat and electrical and chemical erosion. A dirty spark plus causes misfiring, which wastes fuel. Spark plugs need to be replaced as recommended by the manufacturer.

Dirty air filters -- An air filter that is clogged with dirt, dust and bugs chokes off the air and creates a "rich" mixture -- too much gas being burned for the amount of air, which wastes gas and causes the engine to lose power. Replacing a clogged air filter can improve gas mileage by as much as 10 percent, saving about 20 cents a gallon.

Fuel-saving, driving tips include:

Don't be an aggressive driver -- Aggressive driving can lower gas mileage by as much as 33 percent on the highway and 5 percent on city streets, which results in 10 to 66 cents per gallon.

Avoid excessive idling -- Sitting idle gets zero miles per gallon. Letting the vehicle warm up for one to two minutes is sufficient. Observe the speed limit -- Gas mileage decreases rapidly at speeds above 60 mph. Each mpg driven over 60 will result in an additional 10 cents per gallon.
To maintain a constant speed on the highway, cruise control is recommended.

WIPERS - In the 2001National Car Care Month vehicle check lanes, 21percent of participants had wipers that smeared, streaked or chattered across their windshields. Although climates vary, wipers generally need replacing every six months. An easy reminder is to change wiper blades in the spring and fall when you change your clock. Be sure the windshield washers are working properly, too, and keep the reservoir filled with solvent.

LIGHTING - Another important pre-trip check should be exterior and interior lighting. Vehicle check lanes revealed an overall failure rate of over 25 percent in the lighting category. The Car Care Council reminds motorists to check their lights monthly. Other suggestions from the Council include turning on headlights both day and night. This helps define your car?s position on the road, and its distance from other drivers. When your vehicle's lighting is defective, other motorists may not get the message that you intend to stop or turn. The end result could be disastrous.



For More Fuel Saving Tips Click Here


Ten minute Pre-Trip Check List


  1. Check all fluids. There are several fluids, in addition to antifreeze, that require attention, including engine oil, power steering, brake and transmission fluids and windshield washer solvent and antifreeze/coolant.


  2. Check hoses and belts. A belt that fails can affect the electrical system, air conditioning and power steering, as well as the cooling system. Cooling system hoses may be deteriorating from within, so old hoses and clamps in marginal condition might need to be replaced.


  3. Check the tires. Check tire inflation and inspect the tread for uneven wear, indicating the need for wheel alignment. Also look for bulges and bald spots.

While a last minute checkup is better than no checkup, motorists should plan ahead to allow time to perform necessary maintenance themselves or at the local service facility. A properly maintained vehicle is safer and more dependable and will even save a few dollars at the gas pumps...

Not only can a pre-trip inspection help reduce chances of costly and possibly dangerous road trouble, it also provides an opportunity to have repairs made at home, with one's own technician who knows the vehicle.

Especially important, it provides peace of mind. While no inspection can guarantee a car's performance, it's comforting to know proper precautions were taken.




Copyright 2007, Car Care Council. All rights reserved.

Tuesday, June 12, 2007

Hot and humid weather in Texas...




Well it's that time of year again. Hot and humid weather in Texas...
I see so many cars driving around with there windows down and it makes me wonder why.
With today's A/C systems and reliability of the systems, there is no need to sweat.
I will explain some major points of A/c systems and there functions along with some new technology's going on in your car.

There are two main reasons that we have air conditioning in cars.
1. Comfort- a/c systems remove the humidity from your vehicle ,which keeps you cooler and comfortable while you drive.It also removes dust and pollens from inside the car, so you breathe easier.
2. Safety- being cooler while you drive keeps you more alert.

Air conditioning systems have been around for over 60 years and some major changes have been seen in the last 10 years. Sixty years ago it was basically a wet towel across a fan. Now days it is a very precise and complex system of electronic controls to regulate temperatures and switches to keep the systems from over pressurizing and damaging the system. new refrigerants so as not to damage the ozone layer, new test equipment to professionally repair these complex systems. And years of training to keep up with all these and future changes in the automotive industry.
All this leads to systems lasting longer with fewer trips to the auto shop for major repairs.

To add to the complications, we now have tough environmental regulations that govern the very simplest of tasks, such as recharging the system with refrigerant R12 commonly referred to as Freon® (Freon is the trade name for the refrigerant R-12, that was manufactured by DuPont). Although it makes it impossible for the weekend worrior to work on there cars due to all the regulations and licesning needed to repair these systems.

Types of Freon: r-12 (The old freon that is banned in the United States), r-134 ( The new refrigerant that is not harmful to the atmosphere ).
And I have heard it said that r-134 is not as cold as r-12. lets get this straight, If done with the proper procedure and equipment. It is colder...

How an a/c system works: Basically, an automotive air conditioning system is split into two sections, a high-pressure side and a low-pressure side (see illustration), which are separated by the compressor (the big thing bolted to the front of your engine with hoses coming out of it) and the expansion valve or expansion tube. Starting at the beginning of the cycle, the compressor pushes refrigerant in superheated gas form through high-pressure lines into the condenser (the thing that looks like a small radiator behind your grille), where cool, fresh air absorbs and carries away most of the heat trapped in the hot gas. As the refrigerant cools off, it condenses, turning into a sub-cooled, high-pressure liquid. The liquid then flows into what is called the drier, a small canister somewhere in the engine compartment that filters out impurities in the refrigerant and separates pure liquid from the gasses.
Next, the sub-cooled, high-pressure liquid leaves the drier and travels to the expansion valve, where it is metered into small droplets that travel through a small orifice into an evaporator or heat exchanger inside the cabin. This effect is similar to placing your thumb firmly over the end of a garden hose and cranking the valve open. Rather than a stream of water pouring out, you get a big cloud of mist. As we discussed earlier, the evaporation process requires quite a bit of heat/energy, so the refrigerant cools down as it moves through the evaporator, which resembles a small radiator mounted in a box somewhere under the dash. Fans circulate warm cabin air through the box and over the fins of the evaporator, where the heat is sucked out of the air and absorbed by the refrigerant. The air temperature drops significantly, and since cool air has less capacity to retain moisture than warm air (that's why Florida in summer is muggy, and Maine in winter is dry), moisture collects on the fins of the evaporator and eventually runs down a drain tube and out the bottom of the car. Finally, cool, dry air is blown out the vents in the dash into your face, while the heated, low-pressure gas travels from the evaporator back to the compressor, where it will be turned back into a high-pressure vapor in order to start the whole cycle over again.

Sunday, June 3, 2007

Texas Lost A Great One...




In case you didn't know. I lost my best friend, my favorite teacher, my coach, and most of all my DAD, today.
He was a very well loved man, he never met a stranger and if he did they were no longer strangers anymore, but lifetime friends. He bragged all the time about his kids, even though sometimes I know we broke his heart with some of the things we said and did. But dad never held it aginst us and loved us all the same.My parents couldn't have children. So after several miscarriages, they adopted two children and then a third two years later and then a fourth about 6 years later (that would be me at age 9).As I grew up I learned so much from his love for the outdoors and his love for TEXAS. He always took us camping, he was also one of my Boy Scout leaders, We traveled every year for vacations and I mean by car, camping gear and all for 2-3 weeks at a time.He would make sure that we stayed at places where I could fish(even though he didn't fish) and the older kids could hangout and the youngest one a place to have fun.He spoke little about politics and lots about our family. He taught me about nature,gardening,and unconditional love, and how to make friends and keep them.
If you walked into his house you would see pictures of everything about TEXAS, from articles to barbed wire . This man made Sam Houston proud. There were pictures of the navy, shell oil company ( where he ritired from after 30 years ), family, friends, old courthouses, and even his own 5 J branding iron ( I bet he wanted to use it on the kids several times...).And if you ask him about anything in his house he would tell you about it's history and what it meant.
My Dad was a man of honor,love and integerity.
I will miss him...I Love you dad....
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About Lil Mike

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Pasadena, Texas, United States
I see humor in everyday life... I'm married and have 5 grandkids & a cat... I have been a certified auto mechanic for over 30 years. So I do have some stories to tell...

Auto Service Excellence Certification

Auto Service Excellence Certification
June 11-17, 2007 National Automotive Service Professionals Week