Ford 7.3L Power Stroke (1999-2003) :: Big Fuel Leak?
Mar 13, 2016
Brothers of fte. I reach out. Tonight it appears I had a fuel bomb under the hood.
I've been chasing a fuel leak. Replaced fuel drain orings but one screw seemed to not snug up. Also the plastic was so brittle I couldn't replace the inner oring. Installed new valve worked great. A week later noticed new slow drips. Replaced fuel filter. Again good for two weeks.
Tonight pulled into the driveway hopped out immediately smelled diesel. Steaming from under hood. Popped the hood and everything was wet. Moved her to the street and it clattered like I was running out of fuel. Still half a tank though. Hosed of the drive. Popped hood again fired it up easily. Started fine. No noticeable leak. But everything is wet from fuel. Insulation on hood was saturated. When I open the hood fuel ran out of the insulation into the air intake. Batteries were wet!
Alright what gives? Do I have to be under load to see this leak?
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I've had an engine oil leak for some time. Recently I've had to add about a quart a month. I got some fluorescent dye and added it to the engine oil last time I added a quart. Ran the engine for a few weeks. Then cleaned the engine valley with cleaner and hot water.
Tonight I investigated the top of the engine with a black light. To my surprise, the oil leak is coming from the fuel bowl, right around the drain valve. I can clearly see about a drop every 3 seconds of fluorescent yellow liquid falling into the valley below and yellow all around the valve.
I expected a leak from the HPOP not the fuel bowl. Do I have a bigger problem? Is engine oil getting into the fuel? I plan to replace the seals in the fuel bowl, but not until I know whether I have a larger problem to address.
2001 F250 Crewcab, 220,000 miles
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I've thought I smelt diesel fuel on an off for a while, but never found the source.
Tonight, 17 degrees out I have fuel in the valley and it appears as if the back of the drain valve is wet.
A fuel bowl rebuild is on the short list. Is this typical, the cold weather brings the issue to light?
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I had just replaced my the fuel pressure regulator in the fuel bowl because it appeared to be leaking from where the FPR is, now with the new FPR , it is no longer leaking from there but now leaking (fast steady leak while running) from the fuel rail outlet fitting... How do you replace these, why all of the sudden it started leaking there ???
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I have a very small fuel leak in my 2001 F-250. I was going to just let it go until I needed to do other work (since I get 20mpg city and 25mpg highway), but I went to a "new" inspection guy, and he flunked me. So now I have to fix it. And for all I know, my mpg and fifteen other things will break when I try to fix this.
Today I spent 4 hours in the heat putting in two new o-rings on the water separator valve. But the truck still leaks fuel. Climbed up on top of motor while it was running and looked, but I don't see where the fuel is leaking out.
Online research suggests to me that the next most-likely culprit is a steel fuel line that wears through from vibration and chafing. Is that correct?
This truck is so eaten up with rust (came from salt belt) that I bought a LOT of fuel line stuff a year or so ago, so that when things started falling apart from rust, I would have the parts on hand.
Now I'm wondering whether I already have the part I'm likely to need.
So far, I have bought:
1. Dorman Fuel Supply and Return Lines
2. Riff Raff Diesel High Pressure Crossover (HPx)
3. Riff Raff Diesel Fuel Rail Crossover (FRx)
So my question is, am I likely to have something to replace the part that commonly leaks on these trucks due to vibration/wear/chafing ... or will I still need to buy another part?
I'm thinking that one of the two lines in item #1 above is the problem child...
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I've got a late 99 7.3 truck that I just recently did a lot of work on. I installed a new turbo with bellowed up pipes and a new exhaust system and when I went to start it up it started leaking fuel in the back pretty badly. Initially I thought it was the banjo bolt or the passenger fuel line but looking at it more closely I realized that it's not coming from there. It's dripping all over the side of the starter and is collecting at the low point of the metal lines down below. I also saw small droplets coming out of the up pipe where it meets the manifold but it looked like nowhere near enough to produce the kind of leak I'm seeing, also I know fuel shouldn't be coming out of the up pipe to begin with. This is really annoying and I would like to drive my truck again.
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I have a 2003 F350 6.0 Lariat Crew Cab long bed. I have had a fuel leak issues for about 2 weeks now. The first fuel leak issue was from the blue spring regulator. I was going to change the part this friday. Well i just drove to get food and back to the house was only gone for 15 to 20 minutes amd never cut the truck off. So i got back home and parked the truck and i cut it off and got out and all of a sudden i here this noise like you hear when a tire has a hole in it and its leaking air out then all of a sudden I hear fuel just pouring out and smoke coming out of the hood. Its night time here where i live so i cant get up under the truck to see exactly what is going on. But I did check to see if it was the regulator housing and it didn't look like any of the fuel lines was leaking that i could see.
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So my 7.3 started sputtering and lost power, died on the side of the road. I wasn't far from home put about 8 gallon of diesel in the tank with a couple of fuel jugs and it fired right up.
Gauge was reading 1/8 of a tank and low fuel light did not come on. (low fuel light comes on when you start) Gauge came up to about 1/2 after putting fuel in.
What happened? Gauge was always reliable and low fuel light always did work. Only work done to fuel system was had new tank straps put on a couple of months ago.
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01 7.3. Cranks, won't start. Tank was at 1/4 but is full now. The lift pump runs, I can feel and hear that the motor is spinning when I cycle the key. I removed the fuel filter and cycled the key and get no fuel into the bowl. It looks like the lines are stainless from the pump to the tank so I doubt it is sucking air. I pressurized the tank with a shop vac and I get fuel coming into the filter housing. Am I missing something obvious? I have never seen an electric pump that would run and not pump fuel. I removed the suction line at the pump and don't feel any suction there.
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I have a 03 F-350, 7.3L. There is a slow oil leak that only leaks after I've run the truck. In other words, it doesn't just sit and leak overnight. I'll park it after running, and the next morning I'll notice a small pool of oil, approximately 2" in diameter. The leak appears to be coming from the oil pan area. I degreased the entire oil pan area to get a better visual of where the leak is coming from. I can see oil trailing down the front of the oil pan and the rear of the oil pan. Does this sound like the gasket? Or, what else could it be? I'm praying its not as bad as I think and need to replace the gasket.
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This was briefly discussed as part of another thread. It appears that I have a boost leak when I hit roughly 24.5 psi. The leak seems to stay for a few minutes after showing itself, but then I'm able to produce boosts up to 24.5 again. For example, on my 20-mile/30-minute drive to work, I can make this leak "appear" four or five times, maybe more if I try. Does this self-healing leak ring a bell? I haven't done a boost leak test yet, but I'm leaning towards the RTV sealant at the OEM plenums due to the self-healing attribute.
To add a little info to this thread, I recently installed an S&B intake, 4" exhaust, bellowed up-pipes, RR billet wheel, RR CAC intercooler boot kit with new clamps, RDP reinforcing plenum inserts, AIH delete plug, and I removed the wastegate solenoid along with the red and green tubes. I don't have any gauges, but I recently began monitoring the boost using FORScan. Before all of this, I don't think I was producing enough boost to cause this leak, and I had no way to monitor for this leak.
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I've developed a large oil leak in the valley. My guess is the EBPV. What's it take to fix the leak if I DONT remove the valve?
There's a good chance I'll just take it to my works fleet dept and tell them to fix it.
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Do I have to remove my fuel filter and bowl to attempt a repair on my HPOP leak?
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I just noticed a small leak (red PS fluid) coming from the rear of my hydroboost in the truck (while working on my shift tube replacement this past weekend). The carpet is not wet, but there is a drip hanging on the rear end of the HB waiting to start leaking itself on the carpet. Also, there appear to be no issues with either braking or steering -- all is smooth, firm, steady, and quiet.
I have nearly 290K miles on the truck, replaced the Master Cylinder probably 8 years ago at roughly 150K miles. I no longer spend nearly as much time on the road as I used to (probably 8K miles per year now compared to a previous eight-year long run at 18-20K miles per year.
Questions.
1) Should I go ahead and replace the HB before it gets worse (I don't know how fast the fade when they start this process)?
2) If I replace the HB, should I go ahead and proactively replace the MC along with it since I'll have the whole system wide open?
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The leak drains into the first valley of the block. This is after a cleaning and about 300 miles driving. I thought it may be the IPR but, it's looking pretty dry:
Some more pics .....
The HPOP line fittings are dry too. Where else do there the HPOP's tend to dribble a leak of oil from?
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I moved my truck before I noticed exactly where it was coming from then after ward looked in the engine compartment. I had a puddle under the passenger side looks like the hoses going into the passenger glove box area (because I saw a few drops on them). The liquid is silvery. Any guess what fluid this is or where it might be leaking.
The antifreeze doesn't seem to be getting lower. I drove it yesterday for about 30 minutes and no crazy leaks.
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I own a e1999 Ford F350 7.3 4x4 with a Garrett GTP38R turbo. I have been having issues with very little power and pulled an CEL of P0221. I know it's for the APS and have been trying to trouble shoot it as a new APS has not fixed the problem. However, while working on that I just noticed an oil leak appear. I tracked it down and can visibly see it leaking out the top of the passenger side exhaust manifold in two places. It is seeping out the top. Is oil supposed to even be running through here like that?
I recently replaced my up pipes with the newer style bellowed ones. While I had the turbo off I replaced all the o-rings top and bottom and did the EBPV delete on the pedestal. I have been having very little power and cannot the truck over 5-10 MPH and stays at low RPM's so I originally thought it was the leaky up pipes. Those were fixed along with fuel pressure checks which came back good. I then pulled the P0221 code finally. While I had the turbo off I inspected it and it did spin freely and had no side to side play in it.
What was unusual to me was there was a small pooling of oil in the turbo when I took it off. I know the CCV goes through here so some oil is normal. Also, when I was diagnosing the up pipe leak I could see a small amount of oil spraying out the blown donut gasket along with the exhaust gases. I don't think that is normal.
Is there an internal seal in the turbo that can go bad causing oil to spill into my exhaust and possibly leak at the exhaust manifold? Or do I have an internal oil leak from somewhere else?
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I tried a steel with rubber insert washer, but it still leaks. I might have overtightened or something. It seemed good for a while. Who has a solution for this leak?
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I am trying to track down a leak ..... pretty bad one. I just filled with oil truck fired right up and it didnt appear to leak until I turned the motor off then its pouring down passenger side around the starter and into the drain pan. Any clue?? I am thinking pedestal does it usually leak more as the motor is turned off...
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I have a 95 powerstroke as a daily so I realize the common oil leak issues and where to start. Today at work I came in to our 2002 7.3 with a puddle of oil underneath of it. It's a service truck I'm the mechanic and I honestly after filling it could not get it to leak I tried everything. A guy had come in and started it after sitting for the holiday and it sat and idled and leaked probably 2-3 quarts. They shut it down and I came in I added probably 1 1/2 gallons to get it full again. Has almost 300k after I had gotten there they had already warmed the truck up and it had cooled back down. It's coming from the driver side (axle frame rail and leaf spring) are all covered in oil but no obvious signs when shut off idling under load anything of an oil leak. I tried everything to get it to leak and not a drop.
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New up pipe and manifold gasket time!
Massive exhaust leak.. Likely the reason for my 5psi boost.
Wish I had the funds for headers but on the up side, no broken bolts!
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