How do I replace the Fuel Pump?

[alfeebester]

I need to replace the fuel pump in a 1992 Geo Metro but don't know the first thing about doing it and I really can't afford to pay someone else to do it. I already have the correct part--Someone else bought it for me. My Fiancee knows a little about it but doesn't know how to do it either. Is there anyone out there who can give us a detailed step by step process showing how this is done?
Thanks.

[hot_sd]

Not sure if your model has a carb or is injected. If it is a carb then I believe the pump is inside the engine bay. However the injected engines have electric pumps and they are mounted inside the fuel tank so you will have to remove the fuel tank to get to it.

[geozukigti]

Considering that North America never saw carbed metros, I'll assume it's fuel injected. The fuel pump is inside the tank. Jack the rear of the car up. Take off the rear drivers side wheel. You'll notice some fuel lines up there. Disconnect those from the fuel tank, and change the fuel filter while you're down there. There's 4 bolts holding the gas tank in. Take those off, and make sure someone is holding the tank, or it'll fall on you. When you disconnect the wires and such at the top of the tank, you'll be able to slide it out from under the car. You'll see a cap with a bunch of screws holding it to the tank. That's the pump assembly. The screws are in there REAL tight, you might need an impact screwdriver to loosen them. When you remove the assembly, there's a couple wires coming off the motor. Remember where they go, and remove the screws holding them in. Then, loosen the screw on the strap holding the fuel pump in place. It should just drop right out. Don't forget to remove the "sock" on the pump, and put it on your new one. And really don't forget to empty the gas tank before trying to remove it.

[Crvett69]

the wires for the fuel pump and fuel gauge unplug under the rear seat. unplug those first and push the rubber grommet through the floor before dropping tank

[DOCTORBILL]

Hey geozukigti -

When you say the screws holding the Fuel Pump cap on the tank are "in there
REAL tight...", do you mean the buggers have used LOCK-TITE to glue them
in like they did on many of the Throttle Body bolts?

If they did that when they assembled it (in Canada?), then maybe some heat
is required to melt the GLUE!

What does one do if the screw heads break off?

This business of LOCK-TITE use on Metro bolts is a real piss-off.

DoctorBill

PS - it might be a good idea to blow air from a Shop-Vac thru the tank
after it is drained in order to get the gasoline fumes all out.
An Explosion would ruin one's day...

[idmetro]

If a guy were to want to blow air through the tank to eliminate fumes I'd suggest air from an air compressor rather than a shop vac. reason why: the shop vac motor creates sparks (I can see the lovely blue arcing when I run mine) and if you were to inadvertenly vacuum from the tank instead of blowing air into it you'd be drawing gas vapors right to a source of ignition. And as you mention an explosion would certainly change the tone of ones day.

[Crvett69]

tank on a 92 metro should not have straps, just some bolts around outside edge of tank. they don't locktight them in but sometimes they can rust in place. i would not recoment heating them. siphon out as much gas as you can to make tank light. one you get filler neck hose off the tank you can put syphon hose in through that to get more out. take off the line going to fuel filter and smaller hose next to filler hose, also remove a small vent hose by filter . pull up bottom of back seat to unplug tank wires and push rubber grommet through floor. while tank is out is a good time to change filter since its a real pain with tank in place. also if you use some spray lube on the hose fittings they will go back on a lot easier

[carpenter_jai]

while tank is out is a good time to change filter since its a real pain with tank in place. also if you use some spray lube on the hose fittings they will go back on a lot easier

Changing fuel filter is always a pain. I recomend the use of deep sockets to make it somewhat easier. Also, penetrating lube is a good idea.

Jai