Ari’s Garage Oxnard Automotive Repair Since 1993

Ari's Garage Oxnard Automotive Repair Since 1993

Intake Air Temperature Sensor

A car’s intake air temperature sensor (IAT) changes the way it operates based on the temperature of the air in the vehicle’s intake. If the IAT sensor is not working properly, it can affect the way its computer makes temperature based adjustments. A malfunctioning IAT sensor can cause several problems with vehicles.

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Cylinder Head

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allow the exhaust to escape. The head can also be a place to mount the valves, spark plugs, and fuel injectors.

In a flathead or sidevalve engine, the mechanical parts of the valve train are all contained within the block, and the head is essentially a metal plate bolted to the top of the block; this simplification avoids the use of moving parts in the head and eases manufacture and repair, and accounts for the flathead engine’s early success in production automobiles and continued success in small engines, such as lawnmowers. This design, however, requires the incoming air to flow through a convoluted path, which limits the ability of the engine to perform at higher revolutions per minute (rpm), leading to the adoption of the overhead valve (OHV) head design, and the subsequent overhead camshaft (OHC) design.

 

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Cylinder Head Assemblies

Cylinder Head Assemblies

NOTE: A Cylinder Head Assembly is a cylinder head fitted with valves, associated springs, retainers, and on overhead camshaft cylinder heads (OHC), camshaft, camshaft bearings, lash adjusters, tappets and rockers.

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Automatic Transmission

An automatic transmission (also called automatic gearbox) is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually. Most automatic transmissions have a defined set of gear ranges, often with a parking pawl feature that locks the output shaft of the transmission stroke face to keep the vehicle from rolling either forward or backward.

Similar but larger devices are also used for heavy-duty commercial and industrial vehicles and equipment. Some machines with limited speed ranges or fixed engine speeds, such as some forklifts and lawn mowers, only use a torque converter to provide a variable gearing of the engine to the wheels.

 

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Cabin Air Filter

A cabin air filter may be in the outside air intake, visible with the hood up and perhaps a cover lifted. Or it will be under the dash in one or both of two general locations:
• Above the blower in the back section of the outside air intake, a location well protected from moisture.
• Between the blower and the rest of the HVAC case.

If the owner’s manual doesn’t tell you the location, and you can’t see it with the hood open, check behind the glovebox—perhaps you’ll see an obviously removable (with a spring-tab or similar retainer) rectangular plastic cover. Next, look under the dash (on both the driver’s and passenger’s sides) for a removable plastic cover in the HVAC case. If you can remove its cover, look inside the HVAC case.

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Air Flow Meter

An air flow meter is used in some automobiles to measure the quantity of air going into the internal combustion engine. All modern electronically controlled diesel engines use air flow meter,[citation needed] as it is the only possible means of determining the air intake for them. In the case of a petrol engine, the electronic control unit (ECU) then calculates how much fuel is needed to inject into the cylinder ports. In the diesel engine, the ECU meters the fuel through the injectors into the engines cylinders during the compression stroke.

The vane (flap) type air flow meters (Bosch L-Jetronic and early Motronic EFI systems or Hitachi) actually measure air volume, whereas the later “hot wire” and “hot film” air mass meters measure speed of air flow.

The flap type meter includes a spring which returns the internal flap to the initial position. Sometimes if the spring is tensioned too tight, it can cause restrict the incoming air and it would cause the intake air speed to increase when not opened fully.

Differential pressure is also used for air flow measurement purposes.

 

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Save Money with Oil Changes

Save money with oil changes. It is recommended that a vehicle receive a monthly maintenance oil change to avoid any costly auto repair. We know that time is money that is why Ari’s Garage is proud to offer an affordable oil change in less than 15 minutes or your money back. Call for details and to make your appointment.

http://www.dummies.com/how-to/content/how-often-you-should-change-your-oil.html

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