Air in fuel. TDi

JJeepyjohn

Make Me Fries
Joined
Apr 22, 2006
Messages
3,807
What have you guys found to be the best way to check the fuel lines for leaks or areas that let tiny amount of air in ?
 
I don't see any car info, if its a 99-2003 Jetta/golf/beetle, update your fuel level sender.
 
Another to check is the IP head O ring, that is a known failure point that will cause issues. You can reseal it without removing the IP if you are careful.
 
Its pretty common to have tiny bubbles in the fuel lines, doesn't always mean there is a leak, its just what these do. If its causing problems, then go digging.
 
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