Sounds like you are talking about a Ford F450 diesel truck. Try posting this in the Cars and Truck section or give the local Ford dealer a call. This particular forum is for pump problems, not what a manufacturer includes on their vehicles. Good luck.
Is this in a camper? You can either increase the flow to match that of the pump, or install a "bladder" tank in your plumbing system. A small air bladder tank is not too expensive. You charge it with a min of air pressure. When the pump comes on, it will pump the water, and this will compress the bladder raising the pressure in the bladder. When you begin to use the water, the bladder tank will begin to supply the water, when the pressure drops sufficently enough for the pump to come on the cycle will repeat, allowing the pump to start and stop with a delay in between instead of off-on-off-on etc.
Question edited for correct spelling of maker 'Noen' to 'Moen'.
'Fix' as in it is leaking? Or tighten it down because it is wobbly, or something completely different?
Well, we can have a one on one seminar by the internet. I've been a pumpman for 20 years. I can share with you my experience (household pumps, suibmersible pumps, turbine pumps, gear pumps, piston pumps, dewatering pumps, mud pumps, trash pumps, mining pumps, solids handling pump, etc....) Just take your pick. Just send in your e-mail for assistance. God bless.
It is leaking due to a defective mechanical seal. It needs to be replaced. To replace it, is to take the pumpcase off by taking off the bolts that hold it. Then, take the impeller off to take the mechanical seal behind it. Put the replacement in, and reassemble the pump. Just get in touch with us by e-mail to get more assistance.
Move the lever or turn the knob. Check the stop tap under the sink. Make sure the faucet control knob or lever is tight, There is normally a removable cover that hides the screw..
Question edited for clarity, full 'make model (what it is)'.
This a Menards special. To remove handles, look for a small hole hidden from the front. They take a small Allen Key.