2014 Overfueling (diesel running out of the tailpipe!)

[Michael Peigneux]

One morning i came out to my pickup and it was smoking while it was idling. you could smell a strong diesel fuel odor and it had been idling rough on start up for a while. Naturally I assumed it was time for new injectors. Replaced them with brand new Bosch injectors and it ran nice and quiet and smooth for 40 miles. The next time I drove it I let it warm up and then took off. It blew a bunch of smoke again so I took it back to the shop and as it sat there and idled raw diesel fuel dripped from the tailpipe. Before and after injector change when its cold the truck also tries to drive through the brakes when you try to stop. Kind of feels like you're stepping on the throttle and the brake at the same time. Bad new injector or can it be something else be causing it. The only code that comes up is P2509. Truck is bone stock. Also changed turbo actuator, replaced with Genos Garage upgraded actuator. Those codes are gone and it seems to functioning fine.

 

[MtnRider]

Sure sounds like injectors to me (but I'm no expert). Do you trust this shop? Are you Sure they replaced them with brand new ones (not remanufactured or just tried to clean them?).

I would check your oil as well, probably pretty diluted with fuel so I would not drive it.


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[RammerJam]

Could it be the ECM??

 

[R.Taylor]

What ever it is.... It's not good.

 

[nukegm]

my buddy had a 2008 dodge diesel. couple injectors went bad, somehow. filled up the crankcase with fuel, and also came out the tailpipe. he lemon lawed it... good luck.

 

[Michael Peigneux]

Pretty sure we figured it out. Cheap replacement valve cover gasket. The wires running to #4 and #5 had bare spots where the insulation had peeled away. Put the original back on and things seem to be fine.

 

[Michael Peigneux]

Thanks for reading and offering advice.

 

[DonFitzwater]

Pretty sure we figured it out. Cheap replacement valve cover gasket. The wires running to #4 and #5 had bare spots where the insulation had peeled away. Put the original back on and things seem to be fine.

Care to say where you got your injectors and wiring from? I ran into a serious problem with a customer's truck after installing injectors from a cheapo shop in Florida.

 

[Michael Peigneux]

Got them from injectors direct. The injectors where brand new Bosch but the fuel lines and valve cover gasket were junk.