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When say wont crank..Do you mean it will turn over but not start,,or do you mean it wont even turn over..I work on 6.0 liters all the time,,and you really need a scanner to see if your FICM has gone bad or other electronics...Plus your high pressure oil pump could have went out..They dont really give you much warning on them engines when something goes out..
Glow plugs do not "fire". You may be confusing the function of glow plugs as analagous to spark plugs in a gasoline engine; the purpose of glow plugs is to heat the air-fuel mixture to a temperature that will support the diesel auto-combustion process. The diesel process is not one in which the air-fuel mixture is ignited via spark like a gas engine; rather, the air-fuel mixture undergoes much higher compression and spontaneously explodes, generating the combustion in a self-sustaining manner. High compression produces much higher heat, but before it can begin, heat must be introduced into the system to get it started.
If you're having sluggish engine performance from your diesel engine, you may have fuel system issues such as fuel pump failure or fuel line restrictions (including fuel filter or strainer clogging), etc. At the "worst" end of the spectrum, one of more of your fuel injectors may have a problem - the fuel injectors on the Powerstrokes not only inject the fuel into the combustion chamber, but are also cooled and lubricated by the fuel - if the vehicle has ever been run out of fuel, the injectors may have been damaged and will need to be inspected for replacement.
I have this problem from time to time, usually associated with moisture. All I have to do is turn on the headlights and the climate control comes back to life. Hope this helps.
Ok well the glow plugs on a diesel have nothing to do with the engine firing. All the glow plugs do is heat up the combusion chamber on cold starts. Diesel engines fire using high compression. An oxygen sensor won't cause the vehicle to not start and your diesel doesn't have one of those anyways. It could be a fuel related issue. (pump, line, pressure etc.) Have you it scanned for engine DTC's? But based on your knowledge of your diesel vehicle i'm going to suggest you take it to a shop.
yes, on engine.base part #9155, Item #40, big round thing in picture
SECTION 303-04C: Fuel Charging and Controls — 7.3L Diesel
2000 F-Super Duty/Excursion/Motorhome Chassis Workshop Manual
DESCRIPTION AND OPERATION
Fuel Charging And Controls
Fuel System
The fuel system used on the 7.3L direct injection (DI) turbo diesel engine is controlled by the powertrain control module (PCM) (12A650).
The fuel system components consist of:
If you are talking about the new ford ford 6.4 diesel or cummins or duramax, it will take a little longer. They are common rail and pressurize the diesel directly with a pump, the 6.0 uses high pressure oil to pressurize the diesel in the injector. Because of the extra step it can take longer to start the engine.
these are easy to replace. it is located under the hood(depending on if you have the 7.3L) , and is a casister type filter with a black screw off cap on top. screw off the top-take the old one out-put the new one in-screw the cap back on. about a 5 min job. when you pick up the new filter, pick up a service manual for your truck and it will show diagram plus take you step by step
lower right hand side on front of engine just above the a/c compressor it is held in place by 2 10mm bolts it is a duel pulleytensioner with 1 smooth pulley and 1 grooved.
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