2014 Caprice 6.0 fuel leak

Discussion on fuel delivery & intake/exhaust tech & mods.
Post Reply
Bikefabricator
Posts: 8
Joined: Mon Feb 18, 2019 2:23 am

2014 Caprice 6.0 fuel leak

Post by Bikefabricator » Tue Mar 12, 2019 3:57 am

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?

Bikefabricator
Posts: 8
Joined: Mon Feb 18, 2019 2:23 am

Re: 2014 Caprice 6.0 fuel leak

Post by Bikefabricator » Tue Mar 12, 2019 4:00 am

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

smwalker
Posts: 1468
Joined: Mon Jul 29, 2013 6:44 am
Location: Azusa,CA

Re: 2014 Caprice 6.0 fuel leak

Post by smwalker » Tue Mar 12, 2019 4:08 am

Check the inlet hose from the fill neck. You can at least see that without dropping the tank.
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White

Bikefabricator
Posts: 8
Joined: Mon Feb 18, 2019 2:23 am

Re: 2014 Caprice 6.0 fuel leak

Post by Bikefabricator » Tue Mar 12, 2019 7:08 pm

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.

Pursuit
Administration Staff
Posts: 670
Joined: Tue Apr 23, 2013 8:39 pm
Location: Omaha, NE area

Re: 2014 Caprice 6.0 fuel leak

Post by Pursuit » Tue Mar 12, 2019 9:17 pm

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
Maurice Sheil

mhsheil@gmail.com

2011 Caprice Phantom Black 9C3
2012 Impala 9C1
1995 9C1 Caprice
1996 GMC Sierra C1500
1974 SJ Grand Prix 455 well optioned with factory moon roof

Bikefabricator
Posts: 8
Joined: Mon Feb 18, 2019 2:23 am

Re: 2014 Caprice 6.0 fuel leak

Post by Bikefabricator » Tue Mar 26, 2019 7:20 pm

It was a crack in the fuel pump module. Replaced pump. All better now

smwalker
Posts: 1468
Joined: Mon Jul 29, 2013 6:44 am
Location: Azusa,CA

Re: 2014 Caprice 6.0 fuel leak

Post by smwalker » Tue Mar 26, 2019 7:50 pm

Thanks for the update. Weird usually do not see issues with the plastic of the module so quickly.
Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White

Post Reply