land rover Freelancer diesal leak

jadie22 · May 17, 2018

We have recently bought a land rover Freelancer TD4 05 plate. 112000 miles on the clock. we have noticed that early in the morning when the engine is cold (like over night cold) and we turn it on there is a diesal leak. As soon as the engine heats up it goes away. Also it doesn't happen if it is later in the morning like when the engine is warmer. we have taken this to our mechanic 3 times and he cannot see a problem. Anyone know if there is a fix/what it could be, or if this is a common fault?
thanks

Nodge68 · May 17, 2018

The high pressure fuel pump is the most likely cause of temperature dependent fuel leaks. The pumps rust badly under the heads causing leaking issues. It's often worse in cool weather, particularly in winter.
The fuel drips off the engine between the AC compressor and engine block.

Rusty fuel pump that leaked.

saxavordian · May 17, 2018

Hopefully by the title you've not been sniffing or drinking to prevent the leaking problem.

Clearly if there is a leak and the mechanic can not find it then find another. Do you smell from the front through the vents. Is there any residue on the floor from the rear middle or the front. If the rear then a fuel seal has gone on the pump, middle will be fuel lines, front fuel rail leak. As you say when warmed up it goes away this will be due to the pressure from the tank pump need to move the fuel forward to the injectors.

saxavordian · May 17, 2018

saxavordian said:
Hopefully by the title you've not been sniffing or drinking to prevent the leaking problem. Clearly if there is a leak and the mechanic can not find it then find another. Do you smell from the front through the vents. Is there any residue on the floor from the rear middle or the front. If the rear then a fuel seal has gone on the pump, middle will be fuel lines, front fuel rail leak. As you say when warmed up it goes away this will be due to the pressure from the tank pump need to move the fuel forward to the injectors.

Going to also say Nodge will give better clues also soon

guineafowl21 · May 17, 2018

+1 on the high pressure pump. Mine did exactly this.

You’ll need a seal kit for a Bosch CP1 (I got mine from Darwen Diesels online) and a special tool to remove the pump. The job took me about two hours all in, but I had to do it twice because I didn’t clean up the corrosion that was really the cause of the leak.

land rover Freelancer diesal leak

jadie22

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Nodge68

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saxavordian

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saxavordian

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guineafowl21

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