Fuel pump issues

[Anthraxnz]

i think the fuel pump in my executive has seized and needs replacing.

did the tap the bottom of the tank trick and it started working again and now after a couple of hours sitting i went to take it out and it didnt start so my guess is it stuffed.

what part should i replace it with, on trademe (like ebay) theres 3 possibilities.

a new pump $100 roughly
http://www.trademe.co.nz/Trade-Me-Mo...n-96164284.htm

a second hand pump $70
http://www.trademe.co.nz/Trade-Me-Mo...n-96410436.htm

the whole thing $95
http://www.trademe.co.nz/Trade-Me-Mo...n-96600617.htm

i read that it has 2 pumps, is it the black one in the pictures that needs replacing?

Thanks



1989 Executive 3.8V6

[samuels]

i think the fuel pump in my executive has seized and needs replacing.

did the tap the bottom of the tank trick and it started working again and now after a couple of hours sitting i went to take it out and it didnt start so my guess is it stuffed.

what part should i replace it with, on trademe (like ebay) theres 3 possibilities.

a new pump $100 roughly
http://www.trademe.co.nz/Trade-Me-Mo...n-96164284.htm

a second hand pump $70
http://www.trademe.co.nz/Trade-Me-Mo...n-96410436.htm

the whole thing $95
http://www.trademe.co.nz/Trade-Me-Mo...n-96600617.htm

i read that it has 2 pumps, is it the black one in the pictures that needs replacing?

Thanks



1989 Executive 3.8V6

as far as i know VN's only have the one pump if you can get a new pump for $100.00,i'd be leaning that way.
or you could go the last one,saves fiddling around,just mount it straight back in

[Anthraxnz]

cool cheers.

read on the faults site which is listed in these forums, that they have a primer pump and a high pressure pump but some only have a high pressure pump.

[Lost_Pete]

There are two types, single pump and dual pump. The dual pumps run a second pump externally so you should be able to see it. For your V6 it should be a single pump. Yes the pump is the black round thing, actually the black part is a rubber cover.

I highly recommend you buy a new good brand fuel pump. Even from places like Repco you can buy a new pump for about $100.

Have a look at this thread;

Fuel Pump??

regards
Pete

[Anthraxnz]

thanks.

will have a look around tomorrow for parts.

[J_D]

Im pretty sure its only the 85 ltr (long range) tanks that have dual pumps. If yours has two pumps it should be pretty obvious by looking under the right rear wheel arch near the fuel filter, it should be sitting between the fuel tank and the diff housing. And just because its a V6 doesnt mean it wont have a long range tank, any model could be optioned with a long range tank (my VN V6 exec has one) not just V8's.

[-UNKNOWN-]

Just bought a brand new one for my VR for $80 from my local sprints. $40 second hand.. Not worh it..

[Anthraxnz]

it doesnt have a long range tank, only like 50L i think no more than that.

does anyone know where i could find a better induction solution? currently i just got a Pod filter on it. read about other cars just sucking in warm air.

[immortality]

you could get the VS L67 CAI from holden but it's bloody expensive here in NZ. i think the 2 bits together were almost $180. i'd suggest finding a supplier in aus who will ship it to NZ. for about $50 aus + shipping it's still going to be cheaper. if you wanna retain the pod filter it will need to be shielded and will still need a good source of cold air to gain max benefits. here's how mine's been done

http://forums.justcommodores.com.au/...3&d=1162520837

i've since added a CAI setup but i haven't had a time post pics yet, maybe tommorow

[Anthraxnz]

mines mounted similar to yours except the pod is where your last ring clip is by that cloth sleeving. (mind my technical talk. lol)

ill ad it to my list of things to do. cheers

[immortality]

yeah, thats were mine was whilst i made the shield. the cloth stuff is actually exhaust header wrap, it works just as well to keep the heat out as it does to keep the heat in the headers etc. since then i have also added heat shielding for the exhaust headers (i don't wrap the headers because it tends to rust them out real quick) and the CAI setup, guess it's time to test again with the G-tech to see if there are any improvments (although i'm running standard 14" wheels at the mo instead the normal 17's i run so traction going to be more of an issue)

[Morton]

Just a couple of notes on changing the fuel pump yourself You probably know most of this, but it's good to know just in case.

1) remove the fuel pump fuse (under the bonnet in the fuse box), and crank the engine for 10 seconds after it dies. Then drain the fuel tank. Easiest way to do that is to undo the bottom two or three bolts on the fuel pump unit outside the tank and let it run out into a couple of buckets, or a large funnel and a jerrycan.

2) (most importantly) when you remove the fuel pump unit, take REALLY REALLY good notice of how you have to turn it to get it out. It sits in a set of baffles, and is an absolute BITCH to get back in if you forget how. I spent nearly an hour on my back with petrol on my face trying to get the damn thing in The second you remove it, put it back in while you still remember. If you can get that part down, the rest is a breeze.


While you're down there and the fuel system is depressurised, you may aswell change the fuel filter. Ten bucks. Why not.

[immortality]

Just a couple of notes on changing the fuel pump yourself You probably know most of this, but it's good to know just in case.

1) remove the fuel pump fuse (under the bonnet in the fuse box), and crank the engine for 10 seconds after it dies. Then drain the fuel tank. Easiest way to do that is to undo the bottom two or three bolts on the fuel pump unit outside the tank and let it run out into a couple of buckets, or a large funnel and a jerrycan.

2) (most importantly) when you remove the fuel pump unit, take REALLY REALLY good notice of how you have to turn it to get it out. It sits in a set of baffles, and is an absolute BITCH to get back in if you forget how. I spent nearly an hour on my back with petrol on my face trying to get the damn thing in The second you remove it, put it back in while you still remember. If you can get that part down, the rest is a breeze.


While you're down there and the fuel system is depressurised, you may aswell change the fuel filter. Ten bucks. Why not.

good advice there. fuel filter is a good idea also is it's commonly overlooked at service time and we do have absolute crap fuel here in NZ

[Anthraxnz]

brilliant.
there is another good tutorial in another thread turboxs linked earlier on.

on another note, i was offered a GTS ecu from a VN gts would this be a good move. think GTS has 150kW (200HP) normal VN has like 127kW i think

[Morton]

I wouldn't know a GTS from a GST, but wasn't that a V8?

[immortality]

the VN had 125kw (new) and the SV3800 had 132kw etc. not sure on the GTS it's not a model i'm familiar with in the VN series

edit: just did a quick search and wikapedia says that the VN GTS was a limited model run forthe NZ market based on the VN V6 exec. with spoiler, mags and fe2 suspension. so it looks like it's got the standard engine in it. if you can see the ecu take top panel off and tell us what the code is on the memcal

[immortality]

added a pic of my new CAI setup, hopefully i'll get a chance to run it on the G-tech this morning

My NZ VN V6

[Anthraxnz]

some of the hoses will need replacing, these hoses dont have petrol constantly through them so what should i replace them with? is the plastic tube sufficient?

also what can i do about the overflow for the tank, its solid plastic with a metal inlay i think. its rock hard and impossible to bend and will make putting the tank back on a mission.

Overflow

Originally came through that gap directly above the hose and red circle.


state of the hoses


more hose

[Morton]

I wouldn't be putting petrol through anything other than approved fuel lines, and I wouldn't be running them anywhere other than the factory places. The last thing you want is to knock your lines on a low gutter, or have the fuel dissolve your piping. Fuel lines can last for 20 years. I doubt plastic will.

[Lost_Pete]

The original plastic breather lines all perished on our car. (It is a common problem.) I replaced all of ours with fuel line and as you have the tank out I'd take the time to replace them all. (I didn't get as carried away as you as I only dropped the tank enough to get access to the breather hoses. This meant that the filler pipe and overflow pipe remained connected to the tank.) The fuel line is thicker but it all fitted fine.

Our overflow pipe was still good but it was hard to fit. (On our wagon it didn't go through any chassis holes like yours.) If it is bad I'd check to see how much a Holden one is. I also did notice that Gates sell a lot of fuel filler pipes so maybe check with an Auto shop as well.

I use a bit of dishwashing liquid as a lubricate to help ease the hoses back onto their fittings. I also used new clamps everywhere that I could.

[immortality]

i had this problem on my VH, one day i was at the petrol station, filled it up and whe ni got back after payingthere was this huge puddle of petrol under the back of the car. iwas worried there for a bit.

[Lost_Pete]

i had this problem on my VH, one day i was at the petrol station, filled it up and whe ni got back after payingthere was this huge puddle of petrol under the back of the car. iwas worried there for a bit.

I've had this too. Makes you nervous when you start the car!

[4eyedperson]

it doesnt have a long range tank, only like 50L i think no more than that.

does anyone know where i could find a better induction solution? currently i just got a Pod filter on it. read about other cars just sucking in warm air.

Yeh CAI would be best. New from ebay. $49.99 plus postage.

[Emackulation]

brilliant.
there is another good tutorial in another thread turboxs linked earlier on.

on another note, i was offered a GTS ecu from a VN gts would this be a good move. think GTS has 150kW (200HP) normal VN has like 127kW i think

I'll jump on this haha. No such thing as a VN GTS, only a VP GTS which made 200kw. Hope you get your fuel issue fixed.

EDIT: There was also supposed to be a V6 VP GTS that was only released in NZ, But I do not know the power or amount made, or anything for that matter really.

[Anthraxnz]

my mate just told me, that i have to prime the fuel lines with a type of hand pump before starting the engine otherwise it could explode.
whats the story with this? he is a mechanic