Just been setting up to do a leak-off test on my son's 2004 TD4 FL1. Removed the leak off pipes from the injectors, and tried the ignition-on with engine off check.
No fuel coming from injectors tops, but lots coming out of the leak-off pipes ?? Surely there should not be flow from the return pipes ??
[UPDATE] Fix it by using two short loops of rubber hose !!

No fuel coming from injectors tops, but lots coming out of the leak-off pipes ?? Surely there should not be flow from the return pipes ??
[UPDATE] Fix it by using two short loops of rubber hose !!

Last edited: