Titanxt290 just bought it used it appears to be stuck on pump and will not prime when i try to switch prime/pump it appears to not do anything if i buy new pump/prime switch what is inside there that may need to be replaced
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Check to see stop solenoid is working, you may be able to do this by getting someone to turn the key on and off slowly while you are hold your fingers against the side of it. It is the small metal (Nut) with a wire going into it for an easy description. The reason you have to choke the engine to stop it is you have either no power going to the switch or the switch is not working properly. i would think more that the switch may not be working properly as it is meant to close fully when power is turned off, if this was working it doesn't matter how much the motor is reving it will still shut of the fuel to the pump. Sometime these solenoids get a bit of dirt etc stuck in them s well, this is usually just a easy fix,clamp the rubber fuel line before the pump, undo the switch, clean it and refit it, then undo the clamp and prime the pump using the hand primer. Then start the vehicle, don't try to start the vehicle before you have reprimed the pump as you can damage the engine if you don't have fuel going into it. Hope this helps, and good luck with it. Dont rush working on a diesel, just take your time mate.
Hi, Aj, do you have a foot valve on the bottom of the pipe in the well?? The jet pump needs to have a foot valve to hold the water in while priming it... you also have to carefully design the system and prime it in such a way as to eliminate all of the air in the piping. A jet pump will not pull the water and expel the air like a centrifugal pump will...
I think the part you are missing is the foot valve...
THE DETERGENT HOSE USES THE VACUME FROM THE WATER MOVING THRU THE PUMP TO DRAW THE SOAP INTO THE PUMP.
CHECK THE AREA WHERE THE HOSE CONNECTS TO THE PUMP THERE SHOULD BE A SMALL BALL CHECK THAT MAY BE STUCK AND NOT LETTING THE VACUME PULL THE SOAP
SOME FUEL PUMPS ARE ****, IF ITS A CARTER IT MAY GO OUT INSTANTLY. GO UNDER LISTEN FOR FUEL PUMP TO CUT ON WHEN KEY IS TURNED TO ON POSTION, DONT START. IT SHOULD PRIME AND CUT OFF. IF NO PRIME, PUMP MAY BE BAD, YOU CAN CHECK PUMP OUTSIDE OF TANK AS WELL BY REMOVING AND TURNING ON TO SEE IF SPINS, YOU CAN REMOVE A HOSE TO SEE IF GAS COMES OUT AS WELL WHEN TURNED ON, SOME PUMPS GET STUCK. CHECK YOUR PRESSURE TO MAKE SURE IT IS RIGHT, CHECK YOUR FILTER, FUEL PUMP RELAY, ALSO IF YOU HAVE A BOOK SEE IF YOUR CAR IS EQUIPTED WITH A FUEL RESET SWITCH ( SEEN IT ON MUSTANG 5.0). HOPE ANY HELPS. I REPLACED MINE 3 TIMES ON MY 97 CHEVY S10 BEFORE I GOT ONE THAT WOULDN'T OVER HEAT, BOUGHT IT FROM AUTOZONE. BUT AUTOZONE IS COOL.
Try priming your pump and running it for a few minutes in the normal way, and switching it over to backwash quickly. You may be loosing prime. DO NOT RUN YOUR PUMP IF YOU DO NOT SEE WATER IN THE PUMP HOUSING YOU WILL DESTROY YOUR PUMP. Please rate me if you find this helpful, thanks.