I can smell raw diesel when I brake hard

[the_owl]

The past few weeks when I accelerate or brake hard I can smell raw fuel in the cab of my 99 F350. Only thing notable is I towed a 30ft trailer out to AZ and back. I look under the truck and under the hood and I cant see any signs of fuel leaks.
Any I deas?
thanks for the help
A

[kblv247]

start the truck and then look on the passengers side of the motor. you want to do the looking from under the truck. if you see a tube dripping fuel then it is the fuel bowl drain valve o-rings. this is very common for our trucks. you can get new o-rings off eBay for cheap. or your local dealer for a little more. hope this helps

[the_owl]

thanks for the reply
Well it turns out the fuel hardline to the back passenger cylinder is cracked. When I removed the tab bolt holding the line to the heads, its spraying everywhere.

Whats the trick to getting this line out? It looks like the freakin turbo has to come out to get to it.
Also is there a part number for this? Early 99 F350

thanks!