1991 FORD F350 3.7 DIESEL WANT START AFTER CHANGING WATER PUMP

Not enough oil pressure to open the injectors. Check pick up tube

The water pump appears to be near the top of the engine on the passenger side of the car,you need to replace the water pump from under the car.The car has to be lifted on jackstands.
--------- For details and appropriate diagram,click this link below and get more details:---
http://technoanswers.blogspot.com/2011/10/how-to-replace-water-pump-on-1991-ford.html ------------ This should help.Thanks.Helpmech.

check fuel pressure, check filters , bad fuel or water in fuel is a common problem with diesel fuel.start simple, turn key to on ,,can u hear fuel pump. remove filter check condition see if water in filter.they have 2 or more filters. prime pump per manual try again.

The Diesel engine doesn't have an ignition system. Also the dash light shouldn't cause it not to start? You said you changed the fuel filter right? After you started cranking it again did the lift pump fill the new filter up. I have had these before where the lift pumps go bad causing low lift pump pressure which causes the water in fuel light to be on. Did it die going down the road or did you shut it off and can't get it restarted.

Three possibilities are clogged oil cooler (most likely as you only said while towing) bad fan clutch (easiest to try first) or bad head gaskets.

may have a problem with the injectors let it idle till it gets hot and see if it dies if so get the injectors checked

it sounds like the filter might not be the right one....
or the pump isnt priming.....

like "diesel mudder" said previously : was yr tranny in bad shape b4 you changed the fluid and screen?

Check your fuel pump make sure you are getting enough fuel. If the fuel pump is not working properly and then you spray starting fluid and it runs, I would replace the fuel pump

this is jason and in the caption above you said its a diesel right well nin diesel fuel there is a lot of water start by checking where the fuel filter is there shjould be a valve that can release water like on diesel trucks the light will come on and say theres to much water in fuel or whatever maybe that might be the case the sensors just might be reading water rather than fuel.

Get a old leather belt cut it in half . Now put a hole in each cut end and drill it to the back of the cab.