Disassemble water pump - Little Giant Submersible Fountain Pump

see this causes and fix it. God bless you
Water Inlet Valve
If the hose connections are good to the water inlet valve check that water is not leaking from the valve itself it is replace the water inlet valve.

Drain Pump
Check the drain pump housing and all hose connections. The drain pump is down under neath. To disassemble your washer follow the appropiate tutorial. Hoses can be tightened. If hoses or pump housing is leaking replace the pump assembly.

Tub Seal
This is in the center of the tub. The seal is inexpensive but will require some labor to install. Check the tutorials on disassembling the cabinet then remove the agitater and inner tub. Enter your model # above for a diagram or illustration.

see this causes and diagram. God bless you
Water Inlet Valve
If the hose connections are good to the water inlet valve check that water is not leaking from the valve itself it is replace the water inlet valve.

Drain Pump
Check the drain pump housing and all hose connections. The drain pump is down under neath. To disassemble your washer follow the appropiate tutorial. Hoses can be tightened. If hoses or pump housing is leaking replace the pump assembly.

Tub Seal
This is in the center of the tub. The seal is inexpensive but will require some labor to install. Check the tutorials on disassembling the cabinet then remove the agitater and inner tub. Enter your model # above for a diagram or illustration.

fix it. God bless you
Water Inlet Valve
If the hose connections are good to the water inlet valve check that water is not leaking from the valve itself it is replace the water inlet valve.

Drain Pump
Check the drain pump housing and all hose connections. The drain pump is down under neath. To disassemble your washer follow the appropiate tutorial. Hoses can be tightened. If hoses or pump housing is leaking replace the pump assembly.

Tub Seal
This is in the center of the tub. The seal is inexpensive but will require some labor to install. Check the tutorials on disassembling the cabinet then remove the agitater and inner tub. Enter your model # above for a diagram or illustration.

http://www.franklin-electric.com/media/documents/993101.pdf

Screws under the screen if what I see in the manual is correct.

Remove the battery and battery tray.
Drain the engine coolant.
Remove the water pump drive pulley.
Remove thermostat case
Remove water pump tensioner
Remove water Outlet pipe
Remove water pump
Reverse disassembly order to install water pump.
Fill and bleed cooling system

Water is supposed to flow slightly through the pump without it running so disassemble the wand and cut on water supply, see if water comes out of the wand on-off handle. The motor does not have to be running. Got water flowing? YES - clean out the wand filter or nozzle hole. A partially clogged filter will prevent hi pressure activation.
NO? disassemble pump and clean out chamber paths.

Also - A pressure pump is not suppose to be running and not used for over ten minutes. The pump can overheat from lack of water passing through and damage the pump seals. A clogged wand is the same as not using it while you try to figger out why it doesn't have high pressure. I found my clogged filter and stopped up nozzle but haven't gotten my real high pressure back yet. Sears doesn't sell the valve seal kit but someone does.

the water pump is timing chain driven and to replace it requires serious disassembly of the engine. it is a 13 + hour job and is not for the casual mechanic

HI In most dishwashers, the water pump is located under the lower sprayer arm. This component pumps the water through the dishwasher. The pump has two impellers, top and bottom. These, as well as other components, can become clogged with food or detergent. Here's how to disassemble the pump:

Step 1: Remove the cap that holds the sprayer arm on.

Step 2: Remove the sprayer arm, the screen, the pump housing, a bolt, the upper impeller, the food disposer blade, a spacer plate, the impeller hood, a flat plate, an O-ring, and the lower impeller. Lay the parts out in order as you disassemble them so that you'll be able to reassemble them properly.

Step 3: Clean the parts thoroughly with a mild detergent solution. If any parts are worn, replace them with new ones made for the dishwasher.

Step 4: Replace any seals, such as the O-ring or other washers, with new ones.

Step 5: Reassemble the pump, keeping the parts in order.

To reach the water pump, remove the sprayer arm and screen and then the pump housing. Remove the bolt, and the pump components can be disassembled.

On some dishwashers, the lower impeller serves as a drain pump. This type of system usually has a reversible motor; machines with nonreversible motors have drain valves, as detailed previously. If your machine possesses this impeller pump system, and the water will not drain from the dishwasher, clean the lower pump impeller. This may solve the problem. Otherwise, call a professional service person. 

The most likely is either a defective drain pump or a clogged drain hose.

hi try this In most dishwashers, the water pump is located under the lower sprayer arm. This component pumps the water through the dishwasher. The pump has two impellers, top and bottom. These, as well as other components, can become clogged with food or detergent. Here's how to disassemble the pump:
Step 1: Remove the cap that holds the sprayer arm on.
Step 2: Remove the sprayer arm, the screen, the pump housing, a bolt, the upper impeller, the food disposer blade, a spacer plate, the impeller hood, a flat plate, an O-ring, and the lower impeller. Lay the parts out in order as you disassemble them so that you'll be able to reassemble them properly.
Step 3: Clean the parts thoroughly with a mild detergent solution. If any parts are worn, replace them with new ones made for the dishwasher.
Step 4: Replace any seals, such as the O-ring or other washers, with new ones.
Step 5: Reassemble the pump, keeping the parts in order.
To reach the water pump, remove the sprayer arm and screen and then the pump housing. Remove the bolt, and the pump components can be disassembled.
On some dishwashers, the lower impeller serves as a drain pump. This type of system usually has a reversible motor; machines with nonreversible motors have drain valves, as detailed previously. If your machine possesses this impeller pump system, and the water will not drain from the dishwasher, clean the lower pump impeller. This may solve the problem. Otherwise, call a professional service person.