Driving home just about an hour ago start smelling fuel and notice smoke coming from under my truck. Pull over shut it down and get out look under the truck and there is fuel dripping from the center line of the motor back to the bell housing. Just a quick look under the hood with no light I could tell that the front of the motor was not wet, but the left side from the middle of the head down was wet from fuel. If you turn the key and kick the fuel pump on it would put more fuel on the ground. I eventually tried starting the truck again and it was lacking fuel of course. Checked the oil and everything was good there so. I will give more info in the morning when I can see better, but any help here would be very much appreciated. It would be nice to be able to do a self fix because I just dropped 5K on A/C for my house.

Thanks

Michael

 

Ok checked delivery lines to fuel filter housing seem to be fine. Also removed fuel filter and turned key watched fuel flow into filter housing. But still could not get the truck to start. not throwing any codes. My best guess is that the leak is coming from the high pressure side of the fuel system so after leaving the CP3...correct? But i just can't figure out where the leak would be coming from.

Michael

 

check no.4 fuel line for a crack

 

ok will do. Any particular area and reason that the #4 might be cracked?

Anyone know if this would be covered under 100K engine warranty?

Is there a process to prime the fuel system that I will have to do after something like this? I tried this morning to see if I could get it to run to possibly see where it was leaking from but was unable to start the truck.

Thanks for the help gofast!

Michael

 

Ive heard that they are prone to vibrational cracking check all line hold down clamps often for tightness

 

Yeah I just found a lot of info on this in the cummins forum.

Michael