51 Plate 406 Diesel Leak!! Help Please!!!

mad4it · 03-12-2011, 10:52 PM

Hi, I own a 51 plate Peugeot 406, ex Company Car. Its done 144,988 miles. Just before I owned it it had its 1st clutch changed, and last year @ 126k miles it had the high pressue diesel punp and lift pump in tank replaced due to the usual known faults with these.

I have noticed over the last few months a small puddle of what I now know to be diesel where I park the car over night. I finally looked at it today with a mechanic friend as the car is due for a service soon anyway, so was just generally looking at the car to check for potential issues during service. I noticed on the near side of the engine between the battery to back of engine block there is a pipe/something similar covered in dirt, looking wet and smelling/stinking of diesel. Looking below this you can see its obviously been dripping/leaking for a while and chasis leg and everything below this is wet. Does any 1 have any clues what this could potentially be? I will post some pics tomorrow and hope it can show things better then my poor descriptions

Oh just to say I can say for sure its not the fuel filter well/where fuel filter is. I have changed these b4 after I had the high pressure pump replaced, so I know what and where that is, and also checked the drain plug on the bottom of the filter well is securely done up. Also the leak is on the other side of the engine. :s

Cheers

Paul

davidireland · 03-12-2011, 11:05 PM

Ya put on some pics.

Vpug · 03-13-2011, 10:18 AM

Hi

On my old 406 hdi I lost 30lt of diesel in a 10 mile trip, got back to see a diesel spill up the drive.
One of the injector leak off pipe had given up, fuel all over engine bay but I could only see it with engine running.

Thanks Vpug

mad4it · 03-13-2011, 10:34 AM

well I took some pics this morning, but this site wont let me upload any links to external sites until I have made 5 posts

Doh!!!

mad4it · 03-13-2011, 10:37 AM

Oh and as far as I can tell I am not losing that much fuel. Its a very small leak. I still get 50 MPG with mixed urban and city driving, and about 650 miles+ out of a tank for fuel.

I have seen on clear sunny day where I have parked for over 2 hours and was a spill on the area I parked to prob just about cover the bottom of a standard sized coffee cup. Only thing the car does suffer from and has suffered for years from is problems starting in very cold weather. This might be nothing to do with the diesel leak of course.

**bettyswollocks** · 03-13-2011, 10:44 AM

Quote:

Originally Posted by mad4it

well I took some pics this morning, but this site wont let me upload any links to external sites until I have made 5 posts

Doh!!!

You guys really should read this site before jumping straight in -
Need 20 posts before PM!!!!!!

mad4it · 03-13-2011, 10:50 AM

http://www.flickr.com/photos/6052102...n/photostream/

Pic I took this morning
Also a better description. Its right had side of the engine block. You can see from the pics, the top of the air filter box/pipe from air filter

03-12-2011, 10:52 PM	#1
mad4it Junior Member Join Date: Mar 2011 Posts: 8	51 Plate 406GLX 90bhp Diesel Leak!! Help Please!!! Hi, I own a 51 plate Peugeot 406, ex Company Car. Its done 144,988 miles. Just before I owned it it had its 1st clutch changed, and last year @ 126k miles it had the high pressue diesel punp and lift pump in tank replaced due to the usual known faults with these. I have noticed over the last few months a small puddle of what I now know to be diesel where I park the car over night. I finally looked at it today with a mechanic friend as the car is due for a service soon anyway, so was just generally looking at the car to check for potential issues during service. I noticed on the near side of the engine between the battery to back of engine block there is a pipe/something similar covered in dirt, looking wet and smelling/stinking of diesel. Looking below this you can see its obviously been dripping/leaking for a while and chasis leg and everything below this is wet. Does any 1 have any clues what this could potentially be? I will post some pics tomorrow and hope it can show things better then my poor descriptions Oh just to say I can say for sure its not the fuel filter well/where fuel filter is. I have changed these b4 after I had the high pressure pump replaced, so I know what and where that is, and also checked the drain plug on the bottom of the filter well is securely done up. Also the leak is on the other side of the engine. :s Cheers Paul Share Share this post on Digg Del.icio.us Technorati Twitter Last edited by mad4it; 03-13-2011 at 10:58 AM.

03-12-2011, 11:05 PM	#2
davidireland Senior Member Join Date: Jan 2010 Location: Southern Ireland Posts: 2,333	Ya put on some pics. Share Share this post on Digg Del.icio.us Technorati Twitter __________________ Peugeot Master Tech/Citroen Tech

03-13-2011, 10:18 AM	#3
Vpug Member Join Date: Nov 2010 Location: northwest Posts: 50	Hi On my old 406 hdi I lost 30lt of diesel in a 10 mile trip, got back to see a diesel spill up the drive. One of the injector leak off pipe had given up, fuel all over engine bay but I could only see it with engine running. Thanks Vpug Share Share this post on Digg Del.icio.us Technorati Twitter

03-13-2011, 10:34 AM	#4
mad4it Junior Member Join Date: Mar 2011 Posts: 8	well I took some pics this morning, but this site wont let me upload any links to external sites until I have made 5 posts Doh!!! Share Share this post on Digg Del.icio.us Technorati Twitter

03-13-2011, 10:37 AM	#5
mad4it Junior Member Join Date: Mar 2011 Posts: 8	Oh and as far as I can tell I am not losing that much fuel. Its a very small leak. I still get 50 MPG with mixed urban and city driving, and about 650 miles+ out of a tank for fuel. I have seen on clear sunny day where I have parked for over 2 hours and was a spill on the area I parked to prob just about cover the bottom of a standard sized coffee cup. Only thing the car does suffer from and has suffered for years from is problems starting in very cold weather. This might be nothing to do with the diesel leak of course. Share Share this post on Digg Del.icio.us Technorati Twitter

03-13-2011, 10:50 AM	#7
mad4it Junior Member Join Date: Mar 2011 Posts: 8	http://www.flickr.com/photos/6052102...n/photostream/ Pic I took this morning Also a better description. Its right had side of the engine block. You can see from the pics, the top of the air filter box/pipe from air filter Share Share this post on Digg Del.icio.us Technorati Twitter Last edited by mad4it; 03-13-2011 at 10:53 AM.

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