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GU 4.2TD water in fuel

Tech Talk for Nissan owners.

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Posts: 18
Joined: Sat Dec 20, 2008 11:07 am
Location: Brisbane

GU 4.2TD water in fuel

Post by aidanpeternorris »

hey guys

I have a 02 GU 4.2TD and i keep getting water in the fuel. I have had the tanks dropped and fuel lines and pumps done, all filters are new and I have vacuumed and pressurised both tanks.
I am running a secondary inline filter as well.

I get fuel from caltex and have had the fuel tested from specific dates that i filled up and got "there is nothing wrong with our fuel from the filter inspections undertaken" from caltex.

can anyone help me, its been going on for ages and its doing my head in

Cheers
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Re: GU 4.2TD water in fuel

Post by bogged »

try filling up at different locations for 3-4 tank fulls.

you have a locking cap on it? Not someone out there that hates u?
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fuel

Post by aidanpeternorris »

I have filled up at a few servo's, yes i have locking caps this is why im confussed.
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Post by Jock »

Is it hot and muggy where live? do you park in front of air conditioners

could it be condinsation?

Or it could be caltex fuel.
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Post by Feenz »

Get some of these P/N: JM-3764, Shell water detector, we use them all the time to detect water in Helicopter fuel cells. Take them to the servo or whatever and drop them in a sample, you'll know for sure if there's water in the fuel.

Most G.A airports I guess you cound buy it from the mechanics, 1 tube of tabs will probably be about $10 ($80 for 10 tubes from Shell).

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Posts: 18
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fuel

Post by aidanpeternorris »

it is a little bit muggy in brisbane, but i dont think it would be muggy enough to cause any problems.
I have only just had the fuel tanks dropped and cleaned the secondary tank and replaced the main tank.
I have reported the problem to caltex and they have told me that there is no fault with the fuel as they have tests and filters that they can trace back to specific dates.
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Post by Adam GQ »

try not to get shopa docket fuel its shit and not worth the 4 c off
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fuel

Post by aidanpeternorris »

company fuel card, no choice
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Post by ozy1 »

it might pay to pull and drain the tanks again but form now on before you fuel up take a 5L sample and inspect it in a clear container first,
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Post by lolergram »

This may sound stupid but have you checked your connections from the steel lines that run from your tank and get connected to rubber lines under the bonnet?

From memory there is 3.

It is possible that one of them has jumped off the steel connection, maybe the return line? I think all 3 point upwards too (Right near the front right tyre), with a bit of wet driving a few drops could set in.

Have you noticed when you open the fuel cap there is no surplus pressure anymore?

Just a thought...
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fuel

Post by aidanpeternorris »

i will have to check that

although i think when i got the tanks dropped by nissan, they 'should' of checked the connections.

could there be anything with the motor that would cause this problem?
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Post by lolergram »

But where do you notice the water?

In the fuel tank? Fuel line?

I can't see the motor having anyway of putting out any sort of water into the tank throught the lines.

Maybe just check for crossed lines, even make sure the window washer rubber hose isnt connected to the return steel tube. (I've seen this before)
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fuel

Post by aidanpeternorris »

the water light on the dash comes on, then its is in the bulb in the fuel filter. the lines arent crossed (99% sure) the washer lines arent connected to the fuel.
the amount of water in the fuel varies, it normally is about approx 100mm evry 3-4 months.
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Post by ozy1 »

does your truck sit around alot with near empty tanks? possibly condensation, but id hope not at that rate,
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Re: fuel

Post by lolergram »

aidanpeternorris wrote:the water light on the dash comes on, then its is in the bulb in the fuel filter. the lines arent crossed (99% sure) the washer lines arent connected to the fuel.
the amount of water in the fuel varies, it normally is about approx 100mm evry 3-4 months.
Thats a baffle....

Make sure you let us know if you do find what the reason is.
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Re: fuel

Post by bogged »

lolergram wrote:Make sure you let us know if you do find what the reason is.
i reckon someone at work is grabbin his keys and sneakin down to the carpark with a cup full!
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Re: fuel

Post by lolergram »

bogged wrote:
lolergram wrote:Make sure you let us know if you do find what the reason is.
i reckon someone at work is grabbin his keys and sneakin down to the carpark with a cup full!
:rofl:

Maybe we need some surveillance organised?
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fuel

Post by aidanpeternorris »

it has totally got me buggered
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Re: fuel

Post by benhl »

aidanpeternorris wrote:i think when i got the tanks dropped by nissan, they 'should' of checked the connections.
Nissan "should" do a lot of things...


But they don't :twisted: Check it agian.
GU 4.2 TD Garrett BB Hi-flow, M8274 + Bells & Whistles with plenty of fruit still on the list!
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Post by CENTIPEDE »

I have a Funnel that removes water , It's called Mr Funnel... It has some fancy filter thingy in it, made in th USA bought it from Burson for aprox $40 . an inexpensive Item to Guarantee no water getting in... :armsup:

http://www.mrfunnel.com/What.html

JUST MAKE SURE THERE IS NO WATER LEFT IN THE TANK...service mechanic may have done a slack job in checking :roll:
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Post by msjc38 »

What conditions are you driving in?
Does it happen when you drive in wet weather?
You could be getting water in through the breathers make sure all the small hoses are in good condition & some fuel systems have small plastic canisters that breather hoses go to make sure there all ok. if all that is ok try a differant servo
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