Automedics Kaduna/Namagira

16/06/2018

24/03/2018

Motor Oil for Your Car

What’s the best motor oil for your car? That answer is straightforward. Choose a full synthetic motor oil that meets the viscosity grade and engine oil specification listed in your vehicle owner’s manual. Synthetics provide better protection, and 7 in 10 new cars are factory filled with synthetic motor oil, as of 2016. Horry to come get fully synthetic 5liter oil @ automedics which is located at AA8 Nnamdi azikiwe express bypass Kurmin Mashi Kaduna or call: 09039760037,08169180779.

10/03/2018

Understand road signs and their meanings. Automedicsnamagira offer modern days automated simulated driving school with the well trained instructors. Hurry now.

12/02/2018

Purposes of using the right automobile engine oil

Kunle

Lubricating oil is often called the blood of an engine. Proper lubrication of all moving parts is essential for the operation of an internal combustion engine.

The lubrication primarily decreases the power required to overcome friction and reduces wear between the rubbings and bearing surfaces, thereby increasing the power output and the engine service life, and avoids seizure and serious damage of the components. Additionally, the lubricant acts as a coolant, carrying heat away from the bearings, cylinders and pistons. The lubricating film on the cylinder wall acts as a seal to prevent the gases of combustion from blowing by the piston rings and entering the crankcase. Thus, the effectiveness of engine lubrication plays an important role in determining the service life and the performance characteristics of an engine.

The lubrication system is consisted of oil pan, oil pump, oil filter, and oil passages. The passages or inner channels through which oil, like blood in the human veins, get to the nooks and crannies of an engine are largely now finely or very thinly cut in modern engines. Hence, the reason why engine manufacturers of modern automobiles, say, from 15 years to date, usually now state categorically that finely blended, less viscous engine oil classifications like SAE 0-W-20, SAE 5-W-20, SAE 5-W-30, etc. are used to maintain their engines. It’s vitally essential that you make sure that in maintaining your engine, the right classifications of engine oil as instructed by your engine manufacturers are used compulsorily; that’s the only way to make the engine last and serve you well!

The following are the purposes of the right (I repeat: right) specification of lubricating oil in an automobile engine:

Lubrication – An important purpose of engine oil is to lubricate engine parts so that friction and wear are reduced. Lubrication between two moving surfaces results from oil film that builds up to separate the surface and support the load. The lubrication system must provide a continuous flow of oil to all the engine bearings and other lubricated surfaces so that the oil film on each component is maintained to minimise wear. The correct oil viscosity is also essential for reducing friction.

Cooling – The lubricating oil carries heat away from the component which is lubricated. The oil is returned to the oil pan. Some engines incorporate external oil coolers to assist in oil cooling in the oil pan. It is necessary to keep the oil temperature below the flash point of the oil. An engine oil must also have a high heat resistance so that carbon formation due to breakdown is kept to a minimum.

Cleaning or detergence effect – The engine oil has an ability to clean all the engine components, which are in contact with it. Additives in the engine oil help the oil to perform its cleaning operation. Carbon formation is cleaned from the pistons and rings by engine oil. Also, other engine components, such as valve stems, valve lifters, rocker arms, and camshafts, are also cleaned.

Sealing – The engine oil helps the piston rings to form a tight seal between the rings and cylinder walls. Microscopic irregularities in the piston rings or cylinder walls are filled by the oil film, preventing the escape of combustion chamber gases. The engine oil clings to the metal surfaces and resists the tendency of combustion chamber gases to “blow by” the piston rings. The oil film also provides lubrication between the rings and the piston ring grooves, thus allowing the rings to move freely and therefore to have continuous contact between the rings and cylinder walls. Oil between the engine parts cushions the parts from the shock as the combustion charge forces the piston down.

With the additives, the oil has ability to minimise scuffing, reduce rusting, resist oxidation, and maintain the oil’s viscosity characteristics. If the oil is too thin, it rapidly leaks from the clearances, thus allowing the parts to come in contact, resulting in scoring of the parts. When the thickness is too large, the oil requires excessive power to overcome drag between the rubbing surfaces.

The sad truth in Nigeria today is that many of the big brands (I don’t want to name names) selling engine oil don’t sell the right specification for contemporary vehicles on our roads. Please don’t take my word for it; just do this simple investigation on your own: either look atop your engine’s oil chamber or compartment cap under your hood/bonnet, or in your vehicle’s owner’s manual in the chapter on lubrication or l**e service/engine maintenance, then reconcile the exact engine oil specification (say, SAE 0-W-20, SAE 5-W-20, SAE 5-W-30, SAE 5-W-40, etc.) with the grading or specification that’s stated on the container of the engine oil that’s used in servicing your vehicle. If it’s not exactly the same, especially the numbers after the “W”, then, as one young technician in one of my workshops often says: “You dey kill your engine fast fast!”

I know it’s often pretty difficult to get the right spec of engine oil and very good oil additive/s that’ll help reduce friction and wear in engine’s, especially for new automobiles in Nigeria, but these numbers 08023025022/ 08073038173 by AUTOMEDICS are dedicated to help you get the right types of lubricants and outstanding additives as mandated by your engine manufacturer.

NB: Parts of this piece is culled from the internet.

Feedback
I have problem with the (shock) absorbers on my 2007 Hyundai. All my efforts to secure the parts here have been abortive. Please sir, can you advise me on where I could get one bought thanks? —W.A. Abolarin

We can order the parts for you if you can furnish us with the model and VIN number of your vehicle.

I use a limited edition 2008 Toyota Highlander. Recently, my AC technician advised that I have to change my compressor, condenser, and evaporator when the AC was experiencing incessant breakdown. He changed all those eventually.

Since all these parts were replaced, heat has been coming into the car through the AC vents when the AC is not used at all. I have taken the car back, but he seems not to have got the system. Another technician has also checked and confirmed that every vent is properly closed and that the vent bottom is always engaged.

Kindly educate me on what may probably be the problem. The technician is advising that he has to block the thermostat. Kindly advise me. Kind regards. —Damilola

I want to believe the fault is around the A/C evaporator. When the part was replaced, I believe the heater core vent was left open, so the heat from the core is what is escaping into the cabin of the vehicle. The A/C technician needs to go over his job again; most especially, he needs to pay attention to the heater valve and vents.

Diagnostic codes

P0403 – Exhaust Gas Recirculation Circuit Malfunction

Early Exhaust Gas Recirculation (EGR) systems components include EGR Valve and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid, which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.

The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned on and off in sequence. Each time an on pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.

The code is detected when an improper voltage signal is sent to ECM through the valve.

Possible symptoms: Engine Light on (or Service Engine Soon Warning Light), possible engine hesitation.

Possible causes: Faulty EGR volume control solenoid valve, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection, EGR temperature sensor and circuit.

P0404 – Exhaust Gas Recirculation Circuit Range/Performance

Early EGR systems components include EGR Valve and ECΜ Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.

The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from the exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned on and off in sequence. Each time an on pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.

The code is detected when an improper voltage signal is sent to ECM through the valve.

Possible symptoms: Engine Light on (or Service Engine Soon Warning Light), engine hesitation.

Possible causes: Faulty EGR volume control solenoid valve, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection, EGR temperature sensor and circuit.

P0405 – Exhaust Gas Recirculation Sensor ‘A’ Circuit Low

Early EGR systems components include EGR Valve and ECΜ Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.

The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from the exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned on and off in sequence. Each time an on pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.

The code is detected when an improper voltage signal is sent to ECM through the valve.

Possible symptoms: Engine Light on (or Service Engine Soon Warning Light), engine hesitation.

Possible causes: Faulty EGR volume control solenoid valve, carbon built up on EGR valve, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection, faulty EGR temperature sensor and circuit.

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01/12/2017

How important is anti lock braking system?

The main purpose of antilock brakes is to keep the wheels from locking up and to prevent an uncontrollable skid. ABS does that by using sensors that recognize the imminent lockup of the wheels. ... Antilock brakes do stop a car shorter. They do allow control in an emergency stop.

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P0171 GNC Description
The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor signals without heated oxygen sensor (HO2S) input. During Closed Loop, the ECM adds HO2S inputs to calculate the short and long term fuel trim (FT) adjustments. If the HO2S indicates a lean condition, the fuel trim values will be above 0 percent. If the HO2S indicates a rich condition, the FT values will be below 0 percent. The short term FT values change rapidly in response to the HO2S voltage signals. The long term FT makes coarse adjustments in order to maintain an air/fuel ratio of 14.7:1.

17/11/2017

CAMSHAFT SENSOR.
In this article, we will discuss the camshaft position sensor, which is one of the many electrical parts found inside of a car. A lot of people confuse the camshaft position sensor with the crankshaft position sensor because they sound similar. But you must understand the difference between the two because they perform different functions in the vehicle and have different symptoms when something goes wrong with them.

What is camshaft position sensor?
Every modern-day vehicle has a camshaft position sensor. This sensor is a very important part of any vehicle because it helps ensure that the engine is running properly. The camshaft position sensor is built next to the engine, which is right underneath the hood of the vehicle. The only thing is that you may have trouble spotting the sensor when you first open your hood. Usually, different car manufacturers and brands will have their own unique spot near the engine for installing the sensor in. You may find it either in back of the cylinder head, in the lifter valley of the vehicle, or next to the engine block.

09/11/2017

Most modern engines are equipped with variable valve timing. This technology improves performance and efficiency at the same time, but how does it really work? Well, before we get into that, let’s explain the terminology. You see, the technology is widely used by most manufacturers, but a lot of them have some variations on it, including a special name for it. Toyota for instance uses VVT-i, Honda has VTEC and Mitsubishi has named their system MIVEC. In all actuality, they do almost exactly the same thing.

variable-valve-timing-advantages

By using complex mechanical as well as hydraulic processes inside the engine, the technology allows the engine to gain more performance when the driver demands from it, and at the same time increase efficiency when you don’t really need the performance. Like we said, all systems have a few different characteristics, but they all operate on the same (rough) principles.

11/10/2017

IDIOT LIGHT!!!!!

10/10/2017

If the Malfunction Indicator Lamp/Check Engine Light comes on A.K.A Idiot Light, this could be an indication of several things. Many of which will differ depending on the make and model of the vehicle and the manufacturer’s specifications. The purpose of this warning light is to alert the driver of a problem within the engine or transmission, or to signal that scheduled maintenance is necessary for the vehicle. There are several indicator lights on the dashboard intended to communicate to the driver that attention to a particular area is required. Some of those indicator lights include:
Coolant Temperature Warning Indicator Light
Transmission Temperature Warning Indicator Light
Oil Pressure Warning Indicator Light
Battery/Charging System Warning Indicator Light
Tire Pressure Monitoring System (TPMS) Warning Indicator Light
Brake System Warning Indicator Light
Reduced Power Warning Indicator Light
Service Engine Soon Warning Indicator Light
The Malfunction Indicator Lamp/Check Engine Light most often is an indication that there has been a major engine or transmission malfunction and a diagnostic trouble code has been stored by the Powertrain Control Module (PCM). The diagnostic trouble code is used by certified technicians to pinpoint the problem and problem area in order to properly and efficiently make necessary repairs. The Malfunction Indicator/Check Engine Light should not be ignored and should be addressed as soon as possible. While some diagnostic trouble codes indicate a more serious issue than others, it is possible that a less serious issue will worsen or cause damage to other engine components if they are unaddressed for an extended period of time.
If the Malfunction Indicator Lamp/Check Engine Light is on in your dashboard, make an appointment with a certified technician to have it diagnosed and repaired.

23/09/2017

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23/09/2017

What you should about your car tires

P =
Passenger Car Tire
The first letter indicates the tire’s class. P designates this tire as a passenger car tire. An LT before the tire size would mean the tire is a light truck tire. A European metric tire would have no letter before the tire size.

245 =
Section Width
Tread (mm)
The section width is the width of the tire from one sidewall to the other measured in millimeters. In this example the tire is 245 millimeters wide.

45 =
Aspect Ratio
(Ratio of Sidewall height to width)
The aspect ratio refers to the height of the sidewall. It is a percentage of the section width. In this example, the sidewall height is 45% of the 245 section width which equals 127.5.

Z =
Speed Rating
S = 112mph
T = 118mph
The speed rating designates the maximum speed at which a properly installed and inflated tire can be driven on. In this example, the speed rating is Z which means it has the highest speed rating. Z rated tires will also have a W or Y speed rating indication after the load index which denotes the actual mph the tire is rated for.

R =
Radial
Construction
In this example, the R designates this tire as a radial tire. Radial tires have layers of fabric whose cords run at right angles to the circumference of the tire and whose tread is strengthened by additional layers around the circumference making it the most common type of automotive tire.

19 =
Wheel
Diameter
(inches)
Wheel Diameter specifies the size, in inches, of the wheel that a tire fits. In this example, the tire will fit a 19 inch wheel.

98 =
Load
Index
Load Index indicates the maximum load carrying capacity of the tire. It is very important to only install tires with a load index that meets or exceeds your vehicle manufacturer’s specification.

W =
Speed
Rating
The speed rating designates the maximum speed at which a properly installed and inflated tire can be driven on. In this example, the speed rating is W which means it can be driven at speeds up to 168 mph.

Department of Transportation Markings

Department of Transportation (DOT) markings
All tires must have a DOT, Department of Transportation number which indicates the tire has passed all minimum DOT standards for sale in the U.S. This code represents the manufacturer and the plant it was manufactured at (R8) and the size (LN). Also, an optional code for manufacturing (LMJR) which specifies the construction, tread pattern and category of the tire.The week (46) and year (10) the tire was produced are at the end of the code.

Uniform Tire Quality Grading (UTQG) Marking

Uniform Tire Quality Grading (UTQG) markings
The Department of Transportation requires each manufacturer to grade its tires under the Uniform Tire Quality Grade (UTQG) system which establishes ratings for treadwear, traction and temperature resistance. It is important to note that these tests are conducted independently by each manufacturer and not by the Department of Transportation.

The treadwear rating (440) refers to the durability of the tire, not necessarily the projected life of the tire. Since the test is conducted by each manufacturer, and the grade is assigned after the tire has only experienced a small amount of treadwear, there is room for interpretation. While it may be helpful to compare treadwear grades within the same manufacturer, it might not be as helpful to compare the grades across multiple brands or manufacturers.

The traction rating (A) refers to the tire’s ability to stop in a straight line on wet asphalt and concrete under the controlled conditions of the test track. The test does not measure the tire’s cornering ability or hydroplaning resistance in wet conditions or braking and handling in dry conditions. The traction grades consist of AA, A, B or C, with AA being the highest

The temperature rating (A) refers to the tire's resistance to the generation of heat when driven at high speeds. The grades range from A through C with A being the highest, making tires with an A grade most effective at dissipating heat.

Maximum Inflation Pressure and Load

Maximum inflation pressure and load carrying capacity
This maximum inflation pressure number, (51 PSI) indicates the maximum air pressure the tire can hold while in operation. This does not represent the recommended inflation pressure for the vehicle it is installed on. You should always set your air pressure to your vehicle manufacturer’s specifications as stated in your owner’s manual or on the tire information placard inside the vehicle.

The maximum load number, (1653 LBS) is the load carrying capacity of the tire when it is inflated to the maximum inflation pressure. Similar to inflation pressure, this is not the recommended load carrying capacity for the vehicle it is installed on. You should always match the load index or load range of the tire to the specifications in your owner’s manual.