He truck will crank and Idle for a moment but dies acts like its out of gas the fuel pump is working can it be low fuel pressure any Ideas? regulator please help!!
REPLACE FUEL FILTER IF IT HAS BEEN A WHILE.ALSO THE FUEL PUMP RELAY.CHECK FUEL PRESSURE.IT SHOULD BE 35 - 45 PSI. THE 4.9 ENGINE FUEL PRESSURE SHOULD BE 50 -60 PSI.IF FUEL PRESSURE IS GOOD.SCAN IT CHECK THE EGR VALVE / THE MASS AIR FLOW SENSOR / THE IDLE SPEED CONTROL / ALSO A FAULTY FUEL INJECTOR OR INJECTORS WILL CAUSE PROBLEM.CHECK ALL ELECTRICAL WIRE CONNECTIONS TO THE IGNITION COIL AND DISTRIBUTOR.
Check preasure before the regulator and then after,maybe that will give you your solition
Flel regulator will only affect max fuel pressure only will not cause it to not start. try replacing fuel filter first if still does not get fuel then you need to see if it is fuel related or if you have a spark at the spark plugs, pull off a spark plug boot and put screw driver in it hold 1/4 inch away from bare metal and crank engine if you get a spark then it's fuel relateed if no fuel it can be the crank shaft sensor or the cam shaft sensor. let me know if it has fire.
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I have replaced then filter that was the first thing I did, It has ran out of gas a few times we replaced the filter the pump strainer It pumps it just acts like its running out of gas can the pump be putting out too low a pressure or the fuel regulator be bad? its a fuel injected system.
have you changed your fuel filter?
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