VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum banner
Cancel

Fuel leak from hard line fitting on hpfp outlet

328 Views 7 Replies 3 Participants Last post by  m.sabin6299, 
m.sabin6299
Hello all,

I have a fuel leak coming from the compression fitting on the the high pressure fuel pump outlet. I have replaced the hard line once as it is obviously much cheaper than the hpfp and it didn't leak for more than three months then today the leak came back.
I have tried re-seating it but to no avail.
Does anyone have any suggestions on this? I really don't wanna buy a pump just because the fitting is leaking. I am considering getting another hard line but am worried about throwing the money away when I may just have to buy the pump anyway.

Any insight is appreciated!
Reply
Save
Like
1 - 8 of 8 Posts
kksniper
have you trye type flex seal check inside around the connector for any damage use a smooth sand paper around make sure is clean when you put it back, if there is damage on the tread there is a tool to fixed otherwise nothing else will work.
Reply
Save
Like
m.sabin6299
kksniper said:
have you trye type flex seal check inside around the connector for any damage use a smooth sand paper around make sure is clean when you put it back, if there is damage on the tread there is a tool to fixed otherwise nothing else will work.
Click to expand...
Flex seal? I tried sanding and looking for damage or dirt and found nothing obvious threads are fine as well
Reply
Save
Like
A
Try checking the rubber gaskets, bolts, or seals to make sure they are still working properly. I think if possible you should review the type of fuel you are using.
smash karts
Reply
Save
Like
kksniper
m.sabin6299 said:
Flex seal? I tried sanding and looking for damage or dirt and found nothing obvious threads are fine as well
Click to expand...
I had that issue before connect the line first on the HPFP then on the on the riel it needs to be well aligned
Reply
Save
Like
m.sabin6299
I ended up buying another hard line ($50 compare to the $700 for the pump) it is not leaking right now we will see how long it lasts this time 🥲
Reply
Save
Like
kksniper
m.sabin6299 said:
I ended up buying another hard line ($50 compare to the $700 for the pump) it is not leaking right now we will see how long it lasts this time 🥲
Click to expand...
m.sabin6299 said:
I ended up buying another hard line ($50 compare to the $700 for the pump) it is not leaking right now we will see how long it lasts this time 🥲
Click to expand...
where are you located I have one that I get from a junk yard.
Reply
Save
Like
m.sabin6299
I'm in houston
Reply
Save
Like
1 - 8 of 8 Posts
VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum
A forum community dedicated to Audi, Volkswagen, Porsche, and all turbo diesel owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, TDI, maintenance, and more!
Full Forum Listing
Explore Our Forums
VW Mk4 Jetta, Golf, New Beetle, Passat TDI forum Mk5 VW Jetta, Sportwagen, and Audi A3 TDI forum New TDI forum member introductions VW Mk6 Golf, Jetta, Beetle, Sportwagen TDI forum General Diesel Discussion
Top