Join Date: Mar 2015
Location: Blyth, North East
Leaking High Pressure Diesel Pipe
Well, the luck with my lovely GT continues...
The latest being a leaky high pressure diesel line, from the high pressure diesel pump to the main rail.
Came to a slow halt the other night on the way home from work, a couple of miles after the MSCF light came on. Error codes P0091 and P0092. Low and high pressure; have no other info as it was just a cheap reader I was using.
It's leaking from the nut/union at the diesel pump end of the line. Have had the line off, and it looks fine, no obvious signs of damage. It's a queer looking connection inside (I'm no mechanic or mechanical engineer so have never seen a connection like this before, so no idea what it's called).
The worrying thing for me is that this has happened the same day I noticed that the oil dipstick pipe had sheered about half way down, above the fixing bracket.
I'm concerned that something has happened, i.e. a sudden jolt which has caused movement to sheer this pipe and also pull on the diesel line connection resulting in the leak. However I definitely haven't had any bumps or smashes into big potholes etc which might cause something like this. Nothing I recall, and I'm the only person who drives it.
The existing diesel line doesn't look damaged, however when removing it and re-fitting it it doesn't seem to want to fit naturally, i.e. it doesn't nicely line up properly at both ends, which from what I gather is needed for these type of connections...due to the high pressure, any misalignment within the fitting would cause a leak? I have a new diesel line coming tomorrow, but I'm not convinced this will fix the problem. If the connections at the diesel pump and rail aren't quite where they're supposed to be, I'm going to have exactly the same problem.
Has anyone got any suggestions? Anything I can check to see if things are where they should be? Can see the top-rear engine mount and front right engine mounts are fine. Don't think I can see the other two until I get underneath it.
After the turbo blowing last month and a hefty bill for that, I could really do with this being a nice fix with a new line (£56)...but like I say, I'm not too hopeful
Failing the new pipe, it's a tow to a local independent Alfa garage for them to give it a looking at, since I can't get it over to Dan at Autolusso Penrith