Automotive fuel pumps advantage a vacuum diaphragm to push fuel completed a series of steel and rubber lines to the intake manifold of a vehicle. In recent cars and trucks, they are commonly installed in the vat as "submersible" pumps, or mounted separately as either an electric or mechanical pump. The criterion backyard mechanic can convert gone a fuel pump in a vehicle in approximately two hours (for a submersible pump).
1. Disconnect the battery by turning the persuaded terminal bolt counterclockwise.
2. Bleed the fuel vat of the vehicle by siphoning it outside of the filler neck, or turning the receptacle's filter plug counterclockwise, provided relevant.
3. Up thrust the rear of the vehicle onto jack stands with the floor jack. City the jack stands onto the frame rails, not the suspension.
4. Disconnect the electrical connexion to the pump, which is located at the front top cut of the fuel vehicle. Pull the wiring harness adapter plug from the pump input socket.
5. Disconnect the fuel and vacuum lines from the vat by pinching their hose clamps and pulling them unpaid of the pump nipples. These hoses are usually sized for exclusive the exactly nipple.
Remove the fuel pump from the top of the container by turning the screws counterclockwise, then carefully pulling the pump straight outside.9. Convert the pump with a dissimilar unit by sliding it into the vat's opening and turning the mount screws clockwise until they are snug.10.
7. Remove the container from the vehicle by turning the mount bolts counterclockwise, and using the floor jack to operate the cistern gone.
8.6. Disconnect the fuel filler neck from either the oppose of the motorcar (leaving it connected to the receptacle), or by separating the neck at a gasket Seam. Both connections Testament get screws that can be turned counterclockwise to remove.
Reinstall the vat back into the vehicle by positioning it with the floor jack, then turning all mount bolts clockwise until they are snug. Reconnect the filler neck by turning the screws clockwise while it is lined up with the object opening.
11. Reconnect the fuel and vacuum lines to their correctly nipples on the contemporary pump, then secure them with hose clamps. Drudge the clamp back over the nipple and Proceeds it to dominance the hose to the pump.
12. Reconnect the wiring harness to the pump by urgent the adapter plug into the pump's socket until it clicks. Reconnect the battery by turning the confident terminal bolt clockwise.
13. Disconnect the battery by turning the convinced terminal bolt counterclockwise. Disconnect the wiring harness from the pump by pulling the adapter plug from the socket.
14. Disconnect the fuel lines by pinching their hose clamps, or turning the hose clamp screw counterclockwise, and working the hose clamp from the pump nipple. Pull the hoses from the nipples.
15. Remove the pump by turning the mount screws counterclockwise, then pulling the pump from the frame or frame inveigh mark.
16. Moderate the fuel pump by positioning it to the frame or lambaste, then turning the mount screws clockwise. Reconnect the fuel lines and secure the hose clamps. Reconnect the wiring harness to the pump by urgent the adapter plug into the socket. Reconnect the battery.