Just because you hear the pumps hum does not mean they are working. Also, where is the third pump? There should only be two, one in each tank. I am not aware of an F250 with a high pressure frame rail pump, how old is the truck? Have you pulled the fuel filter and checked for restriction? What happens when you pull the line off and turn the key on? Does fuel come out? When you say no fuel is getting to the engine, do you mean you have no fuel pressure, or the injectors aren't spraying anything? Could it be that fuel is getting to the fuel rail but the injectors are not firing? Could it be that you are getting some fuel pressure, but not enough fuel pressure? What if your fuel guage is wrong, and you have two empty fuel tanks? These are questions you need to answer to eliminate things down to your cause.
every engine needs fuel, air, and spark. which is it not getting?
It is getting fuel/spark/ compression?
To pump water. The windmill turns pumps the water out into a trough for the cattle.
First you must know whether or not it is getting fire, fuel and compression.
The engine turns the transmission then the transmission turns the driveshaft.
Like any other car The starter turns the crankshaft and that gets all the other stuff working to have the car start.
Not directly. There are fuses for the engine computer and it is what turns the light on.Not directly. There are fuses for the engine computer and it is what turns the light on.
The engine on a 99 Chrysler Cirrus will turn but not start if it is not getting enough fuel or has no spark. Both issues can be diagnosed by taking the vehicle to a local mechanic.
If you are talking about "3 pumps" I assume that the vehicle is carburated. If so, you may need to adjust the choke a little better. Carburated vehicles are a little more picky when you try to start them. The engine needs to be tuned up and the carb needs to be adjusted properly.
Probably- it is the alternator of generator that makes the electricity. It is usually connected by a belt to the engine, so that when the engine turns it turns and when it turns, it generates electricity.
If your engine fan turns on when the engine is not running it is because the engine's coolant temperature is above the factory preset level at which the computer turns on the fan or fans to cool the engine back to normal.
If your engine turns over but doesn't start it is either not getting fuel , spark , or air