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Discussion Starter · #1 ·
97 F250HD, had a bad cps, replaced then truck would not start trys to start shooting WD40 down instake. DO NOT hear the fuel pump kick in when key is turned on! Have not been able to find the Inertia Switch in either kick panel. See pics!!!! HELPPPPPPPPP!!!!!!
 

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Fuel pump is mechanical in the valley of the engine. Without unplugging your glow plugs, do NOT shoot anything down the intake to help it start.
AaronSEIA
 

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The filter housing should fill up when you crank the engine over. If it isn't you may have a bad fuel pump, an empty fuel tank and or a bad selector switch. And yes the fuel pump is mechanical and is located behind the filter housing by the turbo.
 

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Discussion Starter · #4 ·
Ok lets try this.... Used to hear a whirring for a few seconds when the key turned on, but not all the way to start. No longer here the whirring. Since the pump is mechanical and I have yet to find the inertia switch, could the inertia switch cause the fuel selector on the frame trail to not work? I have 5 gals in the rear tank, but dont think it is getting anything........
 

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The inertia switch is in place for vehicles that have a electric fuel pump in case there is a wreck it will shut off the fuel supply. You truck has a mechanical fuel pump and no inertia switch.
 

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Discussion Starter · #6 ·
Ok there is one shown in the chiltons wiring diagrams.... That is why I am trying to isolate. Does the fuel selector valve run each time you get ready to start, selecting each time which tank? Could it be stuck causing the no fuel issue? Or not being powered ?
 

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Hve you tried taking the cap off the filter, removing some fuel, then turning the engine over to see if it's pumping fuel? Does the tach move when you are cranking? Maybe you have a bad CPS.
AaronSEIA
 

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Discussion Starter · #11 ·
Replaced CPS, doe show on Tach, fuel bowl is empty, am going to get more fuel and put some into the filter housing and go from there. Starting to think the Fuel Pump might have taken a crap while sitting for 2 years.
 

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Discussion Starter · #12 ·
Arrg what a day, starter would not engage or turn so thought the starter/solenoid went bad pulled out had checked and is good. Filled fuel bowl, engine turns over, movement on Tach, shows oil pressure while cranking, after turning over for a few minutes engine tries to fire, picking up a little bit of rpm but not enough it seems. Continued cranking, started blowing white smoke, then had some black then white/gray... Not sure what else to do. Will put charger on and try again tomorrow. Any ideas what else I can try?
 

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You may need to put more fuel in your tank. I had a problem a couple yrs ago. Back tank would get down to 1\4 full and I'd start loosing power. Put it on the front tk and it leveled out.
 

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Discussion Starter · #14 ·
She is getting fuel, but smoking and not really catching. Wondering if there is something else I need to do or what. Will try it again tonight in a few hours.
 
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