306 HDi Question - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

Post #1

I've got a fuel leak on my 306 HDi Cry

and it's coming from what looks like a small black box near the high pressure pump. It looks like the fuel line from the tank goes into it and the line coming out from it goes to the fuel filter housing.
The leak itself is coming from the green connector on this black box. Does anyone know what this black box is called??

Here are some pictures.

Thanks

cornish_pug has attached the following image:

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Team Diesel

Post #2

I don't recall seeing this on my HDi, got any other pictures of it

Post #3

Here you go

cornish_pug has attached the following image:

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Team Diesel

Post #4

Yeah im almost certain i don't have that, mines one of the first HDi's built so likely to have been put onto the later models

Post #5

It's a reheater. The plug can only be for a temperature sensor if it's fuel side, so suggest having a look at the thread. I have it on my X reg, lemme fish out the diagram.

Edit: Here you are

I had to replace the diesel link to it many years ago when a truck tyre shard punctured it. Was a messy job as you get diesel everywhere. Your description tells me it's the plug that's leaking not the fuel lines?

Fuel goes tank LP Pump->heater->filter->HP pump-> Leakoff/used->cooler->tank

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I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

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Post #6

The fuel is coming out of the slot for that green connector, so could the housing be cracked causing it to leak out of the socket??

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Team Diesel

Post #7

What exactly does it do, heat fuel? Whats the benefits of this

Post #8

Saves the need to use glow plugs i guess

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Team Diesel

Post #9

To change the viscosity of the diesel prior to the HP pump. Smile

The fact your pump is pressurising the rail at 1400 bar is why you don't need glow plugs!

Maybe the plug is a temp sensor that's come loose. I can't comment as i'm 7000 miles away from my HDi. Razz

I'm just looking in servicebox now.

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)

Post #10

Any idea on prices of these??

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Team Diesel

Post #11

00001579Y6 FUEL REHEATER 20.49 GBP 24.59 GBP 24.59 GBP

Seriously fella, it can only be a temperature sensoror a direct element if it's got access to the diesel. I can't imagine what else would be in there, and sorry but I can't look at my car lol.

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)

Post #12

I cleaned the connector slot & disconnected the fuel in pipe. When I reconnected them & let the engine run, fuel dripped from the green plug. I thought it may have come from the pipe directly above it but that was dry. So I un-plugged the green plug once again and found diesel inside the slot for it.

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Team Diesel

Post #13

Random. My only concern in that case is what actually is letting the diesel through. Was there any obvious damage to the thread? Wrapped it with PTFE tape and re-threaded?my local Peugeot parts man is pretty good, that's the kind of thing i'd go and ask him about.

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)

Post #14

There is no thread on this connector, it's a push & click type.

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Team Diesel

Post #15

Are you saying that whatever it clips onto has no thread? In which case, you need a new reheater. Simples.

Got a good up close pic yo?

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)

Post #16

I have a new one ordered Smile

cornish_pug has attached the following image:

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Team Diesel

Post #17

I meant of the leak. Laugh

Hope it solves the probs. Smile

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)

Post #18

New part is now fitted and all is well Smile

Thanks tvrfan007 Cheers

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Team Diesel

Post #19

________________________________________

I'm Si btw Tee hee

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper Superman

- (The other half's wheels)