How did diesel get onto my rear carpets...

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Mr K

Active Member
Posts
176
Location
Bedfordshire
This is insane... and took me and an AA bloke 45mins to suss out....

For sometime Mrs K has been mentioning a funny smell in the back of my '05 TD4 so whilst away on our hols last week (caravaning) I was a bit bored so started digging about and found that the O/S rear carpet was soaked in diesel :eek:
As there are no fuel lines inside the car I was well confused on where it had come from... no containers had been in the car so couldn't have come from a leak there.
I also noticed that the carpet under the rear seat was wet and down the slope under the seat, so it was flowing down from the higher level into the foot well.
So I called the AA (may as well seeing as I pay for it) and a very friendly chap pulled up 40 mins later (I was drinking a beer out side the caravan so no rush).
I had a suspicion it was something to do with the fuel pump under the wheel arch but no idea how the fuel was getting up into the car.
We pulled up the carpets where the 12v cables feed down to the fuel pump and noticed the blue insulation tape covering a join was very wet on the earth cable, so having heard of a odd problem on Discos in the engine bay with oil in the wiring I cleaned the wires and placed some blue paper under the wires at the join, then started the engine.... feck me there was diesel coming up inside the earth wire... :eek: so it was collecting and then running down into the floor pan.
We couldn't change the pump so decided to extend the earth wire and to push the open part of the cable under the floor pan so it would leak under the car rather than in it, seems to work as it now leaves a small mark under the car when parked.
The car is going back to the garage on Thurs as the pump was only fitted last xmas so still under warranty etc.

I wouldn't have believed it if I hadn't seen it with my own eyes... diesel in the wiring, that's some high pressure pump...!
 
This is insane... and took me and an AA bloke 45mins to suss out....

For sometime Mrs K has been mentioning a funny smell in the back of my '05 TD4 so whilst away on our hols last week (caravaning) I was a bit bored so started digging about and found that the O/S rear carpet was soaked in diesel :eek:
As there are no fuel lines inside the car I was well confused on where it had come from... no containers had been in the car so couldn't have come from a leak there.
I also noticed that the carpet under the rear seat was wet and down the slope under the seat, so it was flowing down from the higher level into the foot well.
So I called the AA (may as well seeing as I pay for it) and a very friendly chap pulled up 40 mins later (I was drinking a beer out side the caravan so no rush).
I had a suspicion it was something to do with the fuel pump under the wheel arch but no idea how the fuel was getting up into the car.
We pulled up the carpets where the 12v cables feed down to the fuel pump and noticed the blue insulation tape covering a join was very wet on the earth cable, so having heard of a odd problem on Discos in the engine bay with oil in the wiring I cleaned the wires and placed some blue paper under the wires at the join, then started the engine.... feck me there was diesel coming up inside the earth wire... :eek: so it was collecting and then running down into the floor pan.
We couldn't change the pump so decided to extend the earth wire and to push the open part of the cable under the floor pan so it would leak under the car rather than in it, seems to work as it now leaves a small mark under the car when parked.
The car is going back to the garage on Thurs as the pump was only fitted last xmas so still under warranty etc.

I wouldn't have believed it if I hadn't seen it with my own eyes... diesel in the wiring, that's some high pressure pump...!


Very different indeed :p

sounds dangerous also considering you could get some sparks if a cable shorts together ! :eek:
 
fold the rear seats forward, lift the carpet, circular plate - sender is below that. On the older Freelanders the sender was actually a lift pump.
 
Ok, but I know where it is coming from, see my OP.
We did look where you suggest and bone dry so we kepot looking and found it where I said.
 
Update.... changed the fuel filter today (the one that sits next to the fuel pump in the wheel arch) and noticed the new pump is also filling up with diesel as it came out of the elect plug hole when we unplugged it.
Could this be caused by excessive work/pressure by the pump to get fuel through the old filter (original filter -05 62k) which was problay quite badly blocked up?
 
As a biker as well as a Freelander owner I hope you are not spilling diesel on the road - the stuff is lethal and I mean lethal for bikers on bends especially on wet roads.
 
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I ride a bike, in fact I have 2 (harley and beemer) and of course I'm not spilling fuel on the road, and like I would!!
 
I ride a bike, in fact I have 2 (harley and beemer) and of course I'm not spilling fuel on the road, and like I would!!

Phew thanks mate - I got the wrong impression from your post. It is a worry though that potentially it can happen. I followed a guy in the Austrian Alps this year who was spewing diesel out of his fillet cap - not put on correctly. I managed to ride past him and stop him - he was so shocked but put it right.
Cheers
 
Mr K.....hope you have sorted problem by now! Thought i'd let you know that i had a nearly identical issue earlier this year.
The cause of my leak was a pin-hole leak on the diesel filter-body (rear wheel-arch) where it contacts the earth connection. I was amazed at the pressure of the leak when engine was running, it was spraying all over the floor under rear seat!
It is a fault design, steel earth connector contacting aluminium = corrosion!!! As before, hope you're sorted.
Malc.
 
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