Topic: Fuel Gauge (Read 4515 times)

Paul · « **on:** October 25, 2005, 20:52:50 »

The 200tdi Disco has been standing for nearly 3 months,
I went out in it last weekend and noticed that the fuel gauge isn't working.

I have checked the fuse, but carn't get to the sender unit due to the rear
floor being boarded out, Is there anything else I should check before I
unbolt my storage boxes and then start removing the wooden floor. ??

beast5680 · « **Reply #1 on:** October 25, 2005, 22:29:39 »

had the same thing on one of mine, turned out to be the wires on the sender so you may well have to unbolt the boxes :lol:

Paul · « **Reply #2 on:** October 25, 2005, 22:35:31 »

That's what I was thinking.. but it's going to take half a day or so
to remove the storage boxes and wooden floor before I can get to
the sender unit cover. :(

beast5680 · « **Reply #3 on:** October 25, 2005, 22:40:46 »

if you look under one side you may be able to get at the plug for the wires, it may be where the fault is :D

Paul · « **Reply #4 on:** October 25, 2005, 22:43:41 »

I've looked from the side and poked the wires with a stick.

hobbit · « **Reply #5 on:** October 25, 2005, 23:11:41 »

How about cutting an access hole after the boxes are out, save removing the whole floor

Paul · « **Reply #6 on:** October 25, 2005, 23:15:56 »

Nice idea, measurements would be handy so I know were to cut an access hole in the wooden floor.

Anyone got a tape measure ?

Wanderer · « **Reply #7 on:** October 26, 2005, 20:19:03 »

Not without removing my wooden box :)

Well you gave me the idea!!!!

:)

Paul · « **Reply #8 on:** October 26, 2005, 20:45:21 »

Cut a big hole in the wooden floor and found the inspection cover,
After removing all the mud I found the top of the sender unit and
replaced the spade connector, Cleaned up the connection on the
unit and turned the ignition on....

It's still not working.

hobbit · « **Reply #9 on:** October 26, 2005, 21:38:46 »

Any power to the wire?

beast5680 · « **Reply #10 on:** October 26, 2005, 21:43:31 »

i think there is a multi plug on one side of the tank if i remember, it collects all the crud and corrodes

Paul · « **Reply #11 on:** October 26, 2005, 21:45:42 »

Quote from: "hobbit"

Any power to the wire?

Nope

Paul · « **Reply #12 on:** October 26, 2005, 21:46:47 »

Quote from: "beast5680"

i think there is a multi plug on one side of the tank if i remember, it collects all the crud and corrodes

Checked it, Nice and clean and has good contacts.

beast5680 · « **Reply #13 on:** October 26, 2005, 21:52:47 »

aah could of course actually be the fuel sender up the shoot, if you have a multi meter you could check it before removing

Paul · « **Reply #14 on:** October 26, 2005, 21:57:18 »

I have 1 wire on it's own (No power)
and 3 wires that I havn't checked, Just cleaned.

I'm not sure what I should have on what wire to be honest.

beast5680 · « **Reply #15 on:** October 26, 2005, 22:02:14 »

i think ( if i can remember without the book) there is a live in, sensing wire out to the gauge and an earth

Paul · « **Reply #16 on:** October 26, 2005, 22:10:30 »

Don't suppose you know what colour wire is what ?

beast5680 · « **Reply #17 on:** October 26, 2005, 22:35:34 »

er no sorry cant remember that bit :roll:

hobbit · « **Reply #18 on:** October 27, 2005, 12:53:47 »

Sound like a wiring diag time, have a word with ed, he has the bible up there

TimM · « **Reply #19 on:** October 27, 2005, 12:59:29 »

I'm sure you've covered this as it is too obvious, but:

3 months is a long time for a slow leak.....

Are you sure it is your fuel guage, and not simply no fuel?

Paul · « **Reply #20 on:** October 27, 2005, 13:13:06 »

Quote from: "TimM"

Are you sure it is your fuel guage, and not simply no fuel?

It's full to the top.

TimM · « **Reply #21 on:** October 27, 2005, 13:44:49 »

Thought you would have covered that aspect, but you never know

Paul · « **Reply #22 on:** October 27, 2005, 13:53:13 »

If I get time tonight I'm going to remove the sender unit and do some tests.

TimM · « **Reply #23 on:** October 27, 2005, 14:40:37 »

Any idea how much spare wiring there is?

I'm just wondering if before you start taking things off (which sounds like a long process), whether it would be possible to park up a similar vehicle next to it and plug your electrics into their tank....

This would answer whether the problems lies inside your tank, or in the wiring somewhere.

Paul · « **Reply #24 on:** October 27, 2005, 15:54:28 »

Nice idea but not a chance of pluging another one into it, Wires far to short.
I've borrowed a multimeter and I'm going to do a few tests tonight.

Paul · « **Reply #25 on:** October 27, 2005, 19:34:57 »

Cleared away more mud and muck from the top of the sender and
noticed a small wet area on the metal return pipe, I tried to clean it
up to see were it was coming from and the pipe snaped off.

The metal pipes have rusted badly are are paper thin. :shock:

I need a new sender unit quickly.

Damonski · « **Reply #26 on:** October 27, 2005, 19:40:52 »

Quote from: "Paul"

The metal pipes have rusted badly are are paper thin. :shock:

I know that senario very well from my citroen hydraulics :( got to a stage where every pipe I looked at sprung a leak and thats a very high pressure system :(

Just thought I would share that ;) Good luck with a sender unit hunt.

Paul · « **Reply #27 on:** October 28, 2005, 09:03:14 »

Just ringing round trying to get a new sender unit.

So far the best price is Ã‚Â£120 :shock:

TimM · « **Reply #28 on:** October 28, 2005, 09:51:10 »

Might be time to ring Mr S. C. rapdealer.

You could try Derbyshire Land Rover Spares (DLS), I've found them to be very good in the past, there website is here.

Paul · « **Reply #29 on:** October 28, 2005, 09:58:10 »

Quote from: "TimM"

Might be time to ring Mr S. C. rapdealer.

Trouble with buying one from the scrap yard is that it will more than likely be in the same poor condition.

I've tried DLS and a few others, I can get one for under Ã‚Â£100 now but I'm still looking.

News:

AuthorTopic: Fuel Gauge (Read 4515 times)