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2014 Caprice 6.0 fuel leak

Posted: Mon Mar 11, 2019 10:57 pm
by Bikefabricator
Smelling fuel after filling up with e85. Found a puddle under the car on the passenger side near the front of the rear wheel. Went and drive it for a few days. Now no leak. Any ideas?

Re: 2014 Caprice 6.0 fuel leak

Posted: Mon Mar 11, 2019 11:00 pm
by Bikefabricator
Seems to be leaking when full. Haven't smelt or seen anything once it got under 3/4 of a tank. Thinking maybe the hat is leaking. Anyone who has had this issue and can spare some advice, I'd really appreciate it

Re: 2014 Caprice 6.0 fuel leak

Posted: Mon Mar 11, 2019 11:08 pm
by smwalker
Check the inlet hose from the fill neck. You can at least see that without dropping the tank.

Re: 2014 Caprice 6.0 fuel leak

Posted: Tue Mar 12, 2019 2:08 pm
by Bikefabricator
Today the tighten fuel cap flashed up on the screen and the cel came on. Gonna get it up a lift today and see what I can see.

Re: 2014 Caprice 6.0 fuel leak

Posted: Tue Mar 12, 2019 4:17 pm
by Pursuit
I believe that the evaporative fuel system is looking for certain tank pressures depending on the fill level of the tank. Could the leak point be "venting" the system?

Maurice

Re: 2014 Caprice 6.0 fuel leak

Posted: Tue Mar 26, 2019 2:20 pm
by Bikefabricator
It was a crack in the fuel pump module. Replaced pump. All better now

Re: 2014 Caprice 6.0 fuel leak

Posted: Tue Mar 26, 2019 2:50 pm
by smwalker
Thanks for the update. Weird usually do not see issues with the plastic of the module so quickly.

Re: 2014 Caprice 6.0 fuel leak

Posted: Mon Oct 28, 2019 1:12 am
by Bikefabricator
Someone prior to me "worked" on it. Had hose clamps and deal on it. Real quality backyard work.......