Thursday, May 30, 2013
How do I replace the fuel pump
Replace the fuel pump on the forces of any motorist. In that case, if the car will not start and battery and candles in order to inspect the fuel system. When the petrol does not flow into the filter, you want to check fuel pump. It is located under the rear seat, next to the fuel tank. And if the power is supplied, and the pump is not working, you need to take it off, check and change. Before you begin to lift the fuel pump, fuel tank needed emptying. Need to consider precautionary measures: fuel leak, and its vapors are toxic, avoid contact with skin, fuel, produce work near open flames, pay attention to ventilation, it is desirable to produce work in special clothes. So, unplug the mass of the battery, reduce fuel pressure, then remove the rear seats. Unscrew the lid, which is based on the four bolts. Cloth clear the plug and the place where the wire joins the fuel. Disconnect the plug unit of fuel. Clamps relax and disconnect the fuel hoses (they need to mark the tape). Disconnect the fuel supply unit, gently pull out from the fuel tank. Important: The fuel level sensor - not to damage during extraction. Fuel, which leaked to collect cloth. Disconnect the clamp, which fixes the holder and the pad of rubber disconnect, plug the fuel pump is detachable, the clamps open and pull out the fuel pump. Look around the net, through which fuel enters the pump, but usually without replacing the fuel pump (and filter, respectively) - can not do. Install in reverse order of disassembly. Please note that when installing the pump in the connecting hoses, need not break the connection fitting pump, so the pump must be straight. Anchoring clamp, shifts the plug connection, establishes the mount with rubber grip, install fuel pump in the holder, it is necessary to pull down. At the pump put on the locking clip, the unit fuel with a new gasket set in a fuel tank, anchoring, attach fuel hoses, sticking labels, secured by clamps. Connect a plug, fasten the lid, put in place the rear seats. Before you start the engine, to pressurize fuel.
Saturday, May 18, 2013
How to Replace a BMW Camshaft Sensor
1. The sensor is located on the left side of the oil filter. Remove the air filter and air filter box.
2. Disconnect the wiring harness to the mass air flow sensor and the air box temperature sensor.
3. Remove the tube that leads to the idle control valve.
4. Unscrew the 6-mm nut with a socket that holds the hose clamp that downstream of the mass airflow sensor. You should now be able to see the camshaft position sensor.
5. Remove the air intake silencer with a 10-mm socket.
6. Using a 5-mm Allen key, remove the nut that holds the camshaft sensor in place. Remove the engine cover and disconnect the sensor electrical connection at the top of the motor. Clearance around the dipstick is tight, but it is possible to remove the connector.
7. Install the new camshaft sensor with an oiled O-ring. Ensure that the sensor seals properly, and then reassemble everything in the order of removal.
Thursday, May 16, 2013
How to Replace the Oxygen Sensor on a BMW 740i
1. Pop the hood of your 740i and locate the rear exhaust manifold (found on the rear of the engine). The oxygen sensor will be sticking off of the back of the manifold with a wire running to it.
2. Disconnect the wiring harness and use the oxygen sensor wrench to unscrew the sensor and remove it. Screw the new oxygen sensor into place.
3. Reconnect the wiring harness to the oxygen sensor and then close the hood. Turn the car on and allow it to warm up to normal operating temperature. Check to make sure the car is running smoothly and then take it for a test drive.