fuel pouring from back of engine area

[QtrFlsh]

Fuel running out of engine area-over the top of the transmission and down it-as if there is a fuel line on back of the engine that started leaking-a return line perhaps?

[hookset]

bump...........

[sinner6.0L]

your high pressure pump sits back there. it's got 2 low pressure and 2 high pressure fuel lines on top of it. any one of them has the potential to leak

have you had any recent repairs involving the hpp? it's most likely a low pressure line

[QtrFlsh]

I talked to my tech lastnight, he agrees that its probably a line-he hopes a fitting is loose near the pump, and it'll be a simple operation, but he said that if a line has a hole in it, it'll be a cab removal situation. I've never had anything doen to the hpp, but I have an exhaust back-pressure sensor replaced twice, but I dont think that it involves anything related fuel lines...He also recommened asking anyone on here if they have had similar issues in this area and if so we'll alert Ford and the goverment of a potential recall situation? I'm taking it to my tech tomorrow, so hopefully by the end of the week I'll have a definate resolution

[sinner6.0L]

no. never personally seen a line leaking on the high pressure pump. heard of it many times but only after fuel system repairs and only related to the change in washer material from copper to viton. it's possible the actual fitting on the pump has backed out too

if it is a line loosened up on the pump good luck getting to it with the cab on. personally i don't think it is possible. you already have to pull the uppipes to get the heat shield off. and then getting a wrench on the lines with the high pressure turbo outlet in the way is nearly impossible anyways

[iamtiltproof]

this happened to me saturday. exact same thing. its at the dealer and they said they have to take the cab off to see the pump. 1200 to pull cab and see whats wrong. i hope they do a recall cause this is terrible. i am stuck in fl why it gets fixed. they havnt even got the cab off yet. i will post when its done and let you know what happened.

[QtrFlsh]

UPDATE: Got the turbos off, and fitting(s) were leaking on the HP fuel pump...Tech replaced all the fuel lines and seals as well. Also replaced the gasket that seals the wire harness where it goes into the engine, it seems that they are starting to see many trucks have problems here that allow the wires to chaffe and ground out on the block causing serious problems and a cab-off repair too. Put the new PCM flash in as well and the immediately had a limp condition-it seems that my thermostats were f'd up which again is starting to be common on high mile 6.4's. got those in and she's running better than ever. I think that my tech told my about a tsb regarding thermostats failing. Sure warms up faster now! I couldnt tell any performance difference from seat of the pants. Also, he said that the CAC tsb now uses different parts now, so maybe that white smoke in the rain issues will finally be resolved.? The first cooler fixed my truck, but not my fathers, so he'll be getting a new one soon.

[sinner6.0L]

it's good that you got that gasket changed. glad everything worked out

[charlie-2]

i had the same thing happen so i pulled the cab myself and the high pressure lines were lose so i replaced those and the gasket and all seals on low pressure lines but not the lines itself. so started the truck and it has a slight drip and then a stedy drip so i might pull the turbos off and replace the low lines, any ideas?

[sinner6.0L]

you need to look at the flats on the lines to make sure they're not dished from the torque of the original copper washers.

are you using the new black viton washers? if so you may run into sealing trouble due to what I believe is under torque. you need to make sure the washers stay centered in the fitting while you tighten it. For good measure I always replace the low pressure fuel line caps also and give them a little extra 45° turn after the torque down