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In the modern car the electric gasoline pump with fuel injection is ""heart"" of fuel system. The amount of the given fuel and also pressure in system depends on its state. To destination gasoline pumps can be the main (main) and pumping up. At the same time the first has to provide fuel supply in certain quantity to nozzles with necessary pressure. The second has to fill with fuel the highway.
Instruction
1. If the carried-out supply of gasoline in the carburetor is insufficient, then the power of the engine decreases, breakthroughs at vigorous dispersal and also the movement at big speeds appear. In turn, for check of gasoline pump it will be required to you: to remove back seat from the party of the passenger and to turn off metal pad which is under seat.
2. Include ignition, you have to hear sounds of the working pump. At the same time, if you even did not hear this sound earlier, then remove one more back seat, now has to be it is heard better. If there is no sound after all, then check the relay and the safety lock of gasoline pump.
3. Weaken fastening collar, and then disconnect fuel hose from suction branch pipe of gasoline pump. This hose is located below, than fuel level in gasoline tank. Therefore that gasoline did not begin to flow, muffle its opening any to you the available tool, for example bolt of suitable diameter.
4. Further disconnect fuel hose from the carburetor and lower it, having sent down, to comfortable position. After that densely muffle hose opening finger and the lever of manual pumping from gasoline pump make several swings. At the same time the effort of resistance of the intense, compressed diaphragm spring on the lever has to be felt quite accurately. If it not so, then turn the engine crankshaft for special type bolt of fastening of pulley to necessary situation.
5. At each cycle (pressing and release) the finger has to feel increase in the arriving pressure in hose, and the gasoline pump has to make the "squelching" sound, characteristic of it. If there is no pressure, then the suction valve can be untight or the diaphragm is damaged.
6. Then densely close suction branch pipe finger and repeat pumping operation. In this case the lack of depression in branch pipe will indicate to you damage of diaphragm or the forcing valve. If at the same time there is no discharge pressure and any depression, then, except the listed malfunctions, can be something has got to the gasoline pump filter.
7. Wash the filter with gasoline, and then blow it compressed air. Surely replace the filter strongly deformed or resistant to full washing.