If Your Fuel Pump Isn't Working Will A Vehicle Start

Without fuel, the automobile Testament not birth. The fuel pump is the one shot configuration that moves the fuel from the fuel vat to the engine. There are diverse reasons for a fuel pump to fail or not come on. It is vital to test all the circuits before condemning the pump.


An engine needs air, fuel, compression and Glimmer in disposal to gallop. The anterior part to proof is provided the pump can be heard running. Clear the fuel cap and listen for the pump to function while a helper turns the ignition switch on and off. Whether no sound is heard, accessible the hood and remove the Schraeder valve on the fuel castigate above the injectors. Settle a rag in front on the Schraeder valve and push in on the valve while a helper turns the gloss on. Provided the pump is working, there Testament be a spray of fuel into the rag. Provided this happens, then Proceeds the valve straightaway. Provided there is no fuel spray from the valve, then the fuel pump is not working at this lifetime. 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.


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. 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. 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.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.