Wait until the thermostat opens , so the top radiator hose is hot , then squeeze the radiator hose and then stop squeezing - if the water pump is working you will feel a surge of coolant through the hose if the impeller inside the water pump is fine ( I'm assuming that there is no squealing sound or coolant leaking from the weep hole of the water pump )
the fuel pump is located in the gas tank of the truck, they tell you to remove the tank but you can just unbolt the straps and drop it down enough to get to it
Somewhere on the underside of the pump near where the shaft that the pulley is mounted on, there will be a small hole in the pump. This is called a weep hole and water will leak out of there slowly if you have a bad pump.
See "Related Questions" below for information on diagnosing overheating problems - and even how-to-replace a water pump instructions.
With a fuel pressure gauge. Not knowing what year and engine you have I can't tell you what the pressure should be.
Use A Ford Ranger Repair Manual (1983-1992) And It Will Tell You What To Do And Give You Specific Pictures.
You can tell by if there is a leak around the pumps impeller or the gasket. If there is a leak, then the water pump would need to be changed. Secondly if there is no pressure in the cooling system, vehicle is overheating. Chances are the impeller inside the pump is melted, the water pump would need to be changed. Last, if the bearing are worn out on the water pump which would cause unusual noise would be an indication for the pump to be changed.
how can i tell if diesel pump works
go to autozone.com and enter your 1983 info and look up water pump,then on right side of screen,click on repair guide and it will tell your how to remove and install new one.
If its not pumping.
Water pump shaft loose? Water pump leaking? Water circulating in coolant system?
1975 ford truck engine block
No circulation.