Question about 1997 Nissan Quest
REPLACE FUEL PUMP
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Posted on Jan 02, 2017
SOURCE: fuel pump removal
Replace Fuel Pump for 1997 Nissan Quest
(1) If the fuel tank has more than one third full, you need to get the gasoline out. If it has one third or less full, you can leave it in the tank. However be very careful around the working area. Make sure you have read fire precautions in a general repair book. Take the fuel pump fuse out from the fuse box near the battery. Run starter for a few seconds. This will remove the fuel pressure in the gas lines. Disconnect battery at negative terminal. Jack up the rear of the van.
(2) Remove the fuel tank protector.
(3) Disconnect fuel pipes at the front end of the fuel tank. Use short pencils and extra rubber hoses to block disconnected pipes and hoses.
There are two pipes connected to the gasoline filler at the side of the van. Disconnect only the smaller one. The larger one is flex enough for the tank to be lowered.
(4) Disconnect the electrical from this connector. Jack the rear end of the fuel tank with a car jack and a piece of 2x4. Put the wood between the jack point and the tank. Then unbolt the two bolts showing in the picture.
(5) Lower the jack after the bolts are removed. The rear end of the tank should be lowered.
(6) Disconnect fuel lines on top of the fuel pump. Reconnect each short hose back to different pipes as shown in picture to block the pipes.
(7) Loose the six mounting bolts on the fuel pump assembly. The bolts should be loosen a little at a time in multiple turns. Also detach the electrical wire holders. After all bolts are removed, carefully take the assembly out of the tank.
(8) Remove the fuel pump from the assembly as shown in picture. Then unplug the electrical wires. Note that two connectors are in different sizes, so that you will not be able to reconnect to a wrong terminal.
(9) Put the new pump and new filter in. Reconnect the electrical wires. If necessary use a pair of pliers to make the connectors tighter. Make sure they are not loose. Reconnect gas inlet to the pressure regulator.
(10) Use a new O ring, put back the assembly to the fuel tank. Make sure the float of the fuel level senser is free, and the assembly is at the right orientation (as shown in picture). Screw back the 6 bolts after making sure the O ring is in right place. The bolts should be tightened in turns. Do not over tighten them. Then reconnect the fuel lines and make sure every fastener is tight. Put the electrical wire into holders.
(11) Jack up the tank and put the two mounting bolt in. (see picture in step 4). Make sure they are tightened with specific torque. Reconnect the electrical connector.
(12) Reconnect two fuel lines at the front side of the tank. Refer to the picture in step 2. Reconnect the hose to the gasoline filler. Before you have a try start, double check if all fuel lines are securely connected and tightened.
(13) Start the engine. You need to crank more than a normal start because the lines were empty. The pressure is built up in some time.
(14) If engine starts ok, turn it off. Then check under the van if there is any leakage. If everything is fine put back the tank protector. (picture in step 2).
Posted on May 05, 2009
Removal & Installation
Negative battery cable Fuel pump module harness connectors Filler hose shield Fuel pressure and return lines Filler hose Vent hose Evaporative Emissions (EVAP) hose Fuel tank skid plate Fuel tank Fuel level sender Fuel pump
Fuel pump Fuel level sender. Tighten the screws to 17-23 inch lbs. (2.0-2.5 Nm). Fuel tank. Tighten the bolts to 27-36 ft. lbs. (37-49 Nm). Fuel tank skid plate. Tighten the bolts to 27-36 ft. lbs. (37-49 Nm). EVAP hose Vent hose Filler hose Fuel pressure and return lines Filler hose shield Fuel pump module harness connectors Negative battery cable
Posted on Mar 31, 2010
hello, i've dropped my tank for a sending unit replacement which required the pump to be removed. Make sure you have as little gas as possible in tank, disconnect battery, and disconnect the filler hose and whatever other lines that run to tank you can see. The only one I really have some trouble with was the electrical connector on top of pump, just hard to reach. I dropped the two straps for the tank and was able to reach my hand up there and disconnect. A extra set of hands will be great when trying to lower, used a floor jack and i got her down on my own, replaced sending unit and back up in 3hrs but would of been half the time with a buddy. Once tank is dropped, clean around pump with rag or something before removing just to keep dirt etc. from enterning tank. I just used a screwdriver and mallet to tap fuel pump around to remove, you'll see. Check nissanhelp.com for more on this.
Posted on Aug 03, 2010
On some of the Nissan's look under the rear seat. Where you will find a small door. this door should Have Phillips head screws holding it down. after you take the screws out, and pry up on this plate. under that you will see the fuel tank and a place where the wires for the voltage to get to the pump. below , or that is where your pump and sending unit is at.Be Careful if the tank is full.It could leak out when you remove the unit. sometimes it is better to siphon out some of this fuel.then it wont be so messy, and smell! and no smokers around during this repair. and sometimes you just replace the pump ,not the whole unit. and also replace the fuel filter. it's i think under the hood. on drivers side firewall.
Posted on Oct 02, 2011
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