Fuel leaking on cold starts.

[stock]

The last few mornings my truck has leaked diesel fuel onto my drive way just after starting the truck during -8C weather. The diesel can be seen dripping out of the engine/tranny cover under the truck. it smells and looks like it maybe coming from near the top of the engine some where, but when it warms up its gone. Any ideas?

[dleopard19]

i would check fuel pressure regulator on the side of the fuel filter housing, ive replaced maybe 5 of them for leaking and the drip will appear to be coming from the back of engine on passenger side

[dleopard19]

disregard that it doesnt show you have a 6.0 in your signature, noticed it in thread that its a 7.3, my bad bud

[Zaairman]

Its probably your fuel bowl drain O rings. $2 fix.

[stock]

thanks guy's I will have a look at the fuel bowl.

[Dietoremain]

Originally Posted by Zaairman

Its probably your fuel bowl drain O rings. $2 fix.

Agreed.. they expand when they warm up and dont leak, but when its cold they leak. makes sense to me.

[highrpm]

I know the OP has a 6.0, but mine is doing the same thing. Cycled the key on after wiping everything down and saw fuel seeping from the regulator valve. My rig has got 112K on it so I just got the whole kit, about fiddy bucks for a new valve, spring, and O rings. Bout to swap it out in the morning. Also got new fuel rail coupling bushings, might as well do it all at one time.