7400 fuel supply problemhard starting
Posted 11 March 2012 - 10:43 AM
Check the glow plug relay. With a powerstroke engine, the voltage drops at least 3 volts, and if the relay is old the terminals inside get burnt amd the plugs dont heat enough to start it easily when its cold.
Would this be the intake heater or does it have glow plugs also? The voltmeter on the dash shows a good 2V drop, but not 3 while operating.
Posted 13 March 2012 - 06:35 PM
Posted 25 March 2012 - 08:44 AM
Could be a bad o-ring on an injector causing the fuel to leak off, could also be an injector, pretty safe bet to say you'll be pulling the injectors out and o-ringing them, these were bad for injectors and o-rings
We have internal injectors with a common fuel rail, actuated by oil pressure. Would these O-rings still be applicable to this type of engine?
Posted 04 April 2012 - 07:12 PM
Once the load got a bit lighter, the light would come on, but I could get it to go out for a minute or so by very quickly letting off the throttle, then to the floor. It definitely has a major problem, and I see it being one of those ghosts that sucks down a whole lot of money trying to chase it.
The next day I spread another load, half a load at one time, except it was on some hilly, freshly disked ground and the light didn't even come on. I would guess fuel pump, but it seems too inconsistent to be a pump. Could there be a computer going bad?
Any help is greatly appreciated.