fuel pump install

[calaisclown]

hi im about to install an in tank fuel pump into a 91 holden calais and was wondering if anyone had any info, cheers

[Vt-Brrrlina]

drain the fuel tank first - of course lol
jack the car up from the back
think theres 4 bolts that hold it on then pull it out - cant remember if it turns on the way out - i think it does i did mine a few years back but wasnt too difficult

[shmickmik]

IF these are the same as a S1 VN.. then i have done this 3 times in one week!

Its nto too hard.. you will want to drain the fuel.. or at least wait till the tank is empty.. Then i jacked it up so the rear was lower then the front.. that wawy the fuel is pushed to the back of the tank away from the fuel pump.

There should be about 6 tiny 7mm bolts which i got to with a tiny socket set.. this will allow the pump/sender unit to come out. You will also need to disconnect the fuel hoses which goes without saying :P

It will take a bit of patience to get teh bastard out though.. it doesnt come straight otu.. you need to twist and tilt it so the floater can squeeze out of the tank.. you will see what i mean once y our trying to take it lol

After you take it out the first time you will be a pro lol

[Lost_Pete]

Here is what I did (from an older post). I highly recommend you do step #10;

Just put in the fourth fuel pump!

#1 Original - After 10 years then stopped.

#2 Cheap aftermarket ($40) - Ran for a week and then left us stranded on a major road in peak hour.

#3 Replacement (warranty) cheap aftermarket - Ran for 2 years then the car started losing power and running lean. The car ran so lean I actually heard it knocking under acceleration for the first time ever. Car took longer than normal to start in the morning. Fuel pump made odd noises and then finally stopped. NRMA guy said to buy a Holden fuel pump or at least a good brand.

#4 Known brand ($90 trade to $120 retail) aftermarket - Still going!

Prices range from cheap on eBay to $95 at Repco to $195 at Holden.

Yes it is easy to change but a real pain. Here is a guide which may or may not be correct.

1. Find fire extinguisher, fire blanket and a safe place. Depressurize fuel system by pulling fuel pump fuse and running car.
2. Drain tank. I can never syphon these things so I remove the lower bolt from the fuel pump and fuel level sender holder and drain into a bucket.
3. Disconnect fuel pump and fuel sender electrical connectors.
4. Disconnect fuel line to tank.
5. Remove the bolts holding the fuel pump and fuel sender holder.
6. Remove holder and disconnect fuel pump connector.
7. Slide pulsator away from fuel pump and work fuel pump out of the holder.
8. Put the new fuel pump in and reassemble using the new rubber bits.
9. Fit holder back into tank using a new cork gasket (came with fuel pump). Make sure it is in the right way.
10. Now while the tank is empty now is a good time to drop the tank slightly and change those plastic breather tubes which are so old that they are probably cracked and broken. There are two on the top of the tank. I used fuel line instead. While you're at it you might as well change any other suspect fuel lines.
11. Also while the fuel system is depressurized why not change the fuel filter as well.
12. Bolt up the tank if you have dropped it.
13. Reconnect the fuel lines to the fuel pump holder.
14. Reconnect the electrical connectors to the fuel pump holder.
15. Put some fuel into the tank and check for leaks.
16. Replace fuse. Prime the fuel system by turning the car on and check for leaks.
17. Start car and go................

[calaisclown]

thanks heaps for the info makes things heaps easier, cheers

[Morton]

If you throw in a good Bosch 044, I know you'll almost never have an issue with it again. I've heard nothing but good things about them.

[Dan355]

Thats an external pump and a waste of $250+ for something that isnt needed.

[LankyLad]

I just changed my VS fuel pump.. i did it before in my old car with no problems.. but i did it this time and when i corner sharply it runs lean then stalls.. i never use to hav this problem.. an ideas for the cause.. the pump can only go in 1 way right..

[Bz Kn33z]

Replace fuel filter, and pressure reg, couple be the swirl pot on the bottom of the fuel tank, or the sender unit i replace all of these and it got rid of the problem i never had it again. i think it was the sender

[LankyLad]

Thanks for the advice.. but where is the sending unit.. its part of the fuel level thing aint it.. and is it possible 2 change the swirl pot is it..