Without fuel, the automobile Testament not first step. The fuel pump is the onliest item that moves the fuel from the fuel vehicle to the engine. There are indefinite reasons for a fuel pump to fail or not come on. It is vital to test all the circuits before condemning the pump.
If the computer is not working properly, it will not operate the injectors or fire the spark plugs. Check if the check engine light is on. Use a code scanner and check for codes at the OBD port. The crank sensor needs to be checked next for operation because if the crank sensor is not functioning, the computer will not get a signal and will not allow the vehicle to begin. Whether no sound is heard, direct the hood and remove the Schraeder valve on the fuel condemn above the injectors. Domicile a rag in front on the Schraeder valve and push in on the valve while a helper turns the chief on. Whether the pump is working, there Testament be a spray of fuel into the rag. Provided this happens, then Proceeds the valve at the moment. Whether there is no fuel spray from the valve, then the fuel pump is not working at this chronology. In this case, check the fuse for the fuel pump and the relay. If it is good, then check for spark to see if the computer is working.
Pull off a spark plug wire (or if the system is a coil on plug pull the coil). Insert a spare spark plug into the end of the wire and hold it close to the block. Try to begin the engine. If there is a good spark the fuel pump is likely defective. If there is no spark, the crankshaft sensor or computer could be bad.An engine needs air, fuel, compression and Glimmer in line to flow. The fundamental belongings to analysis is whether the pump can be heard running. Bare the fuel cap and listen for the pump to function while a helper turns the ignition switch on and off.
