Engineworld

A  service item that's been popping up in repair shops all across the country is the fuel and induction system cleaning service. It involves running a cleaner through the fuel system, throttle body and intake manifold.   This cleaner removes carbon and deposits from the injectors, throttle and intake, and even works its way down into the combustion chamber and catalytic converter in some cases.  Many people believe that this is just some type of scam. The fact is that it's a real service with real benefits for fuel economy, engine performance and lower emissions. In fact, it wouldn't be overstating things to call fuel sys­tem cleaning the tune-up for the new millennium.   Let's start with the why and why not, and then we'll discuss how often you should have your car's fuel system serviced.  "I never needed my fuel system cleaned before." Not true. In fact, carburetors often were cleaned very thoroughly as part of a regular tune-up. The d

Three Reasons Why Your Car May Not Start Starting Problem # 1:  Engine Won't Crank At All   Scenario : You turn the key, but nothing happens: And by nothing, we mean there is no dash light, no sound, nada. The first thing you should do in this case is to pop the hood and check the battery. Either the battery is completely dead or there's a wiring problem in the starting system. Try jump-starting the battery. If that doesn’t work, you’ll probably have to call for assistance. Scenario : When you turn the key, you hear a rapid clicking sound, and the dash lights dim. This is your classic low-battery symptom. Jump-starting the battery should get the engine to start.  However, if you keep experiencing this problem, you could have a bad battery or alternator, or it could be some­thing as simple as a loose alternator belt.  Take your car to a mechanic just as soon as you can.   Scenario : When you turn the key, the lights on the dash come on, but you don't he

  Brakes are one of the most important safety features on your vehicle.  There are different types of brakes, both between vehicles and within a vehicle.  The brakes used to stop a vehicle while driving are known as the service brakes, which are either a disc and drum brake.  Vehicles also come equipped with other braking systems, including anti-lock and emergency brakes. Disc Brakes      Disc brakes consist of a disc brake rotor - which is attached to the wheel - and a caliper, which holds the disc brake pads. Hydraulic pressure from the master cylinder causes the caliper piston to clamp the disc brake rotor between the disc brake pads. This creates friction between the pads and rotor, causing your car to slow down or stop.   Drum Brakes     Drum brakes consist of a brake drum attached to the wheel, a wheel cylinder, brake shoes, and brake return springs. Hydraulic pressure from the master cylinder causes the wheel cylinder to press the brake shoes against the brake drum. This creat

     Rear axle is the last member of power train. In most of automobiles, real axle is the driving axle. It lies between the driving wheels and the differential gear and transmit power from the differentialto the driving wheels. It consists of two half shaft connected to the differential gear, one for one wheel. The inner end of the each half shaft connected to the sun gear of the differential and the outer end to the wheel. The rear axle and differential gear are completely encloses in a housing which protecting them from water, dust and injury. Function of rear axle: The rear axle mainly performs following two functions. 1. It carries the weight of the vehicle. 2. It rotates and transmits the power from the engine to the wheels. Types of rear axle Classification of rear axle: Rear axle classified by two methods. 1. According to the design of axle: (A.) Banjo axle:      This type of axle is a single shaft and final drive assembly is carried in a separate casi

An axle is a straight shaft that is fixed in location and is used to mount rotating wheels or gears. The wheel or gear can be attached to it with a built in bearing or bushing. A bearing or bushing fits inside the center of the wheel and allows it to rotate without affecting the axle itself. The purpose of an axle is to secure the wheels or gears to specific locations relative to other wheels or gears.      Every vehicle with wheels has an axle. To find it, look for the wheels and then look underneath the vehicle for a method of securing the wheel in place. Without an axle, the wheels would not remain fixed in position and the force and weight of the vehicle would make the wheel bend flat.      In a vehicle, the axle absorbs braking and acceleration forces, as well as the actual weight of the vehicle. It forms a central part of the structural strength of the vehicle, and it must be able to absorb the weight and transfer the forces away from the wheels in order to reduce pre