Ford 7.3L Power Stroke (1999-2003) :: Fuel Smell On And Off / Strong Odor Of Diesel
Jan 7, 2017
I have been smelling fuel on and off for the last few weeks. I thought it was the fuel bowl drain valve so I ordered the kit for the whole fuel bowl from diesel o-rings. I did the rebuild this morning and I don't see any visual leaks. Still smell a strong odor of diesel though. The lower engine cradle is all wet and the valley is still a little wet too. Could I still have a leak and if so where to look? Could it be just wet still from draining the fuel bowl and needs time to go away?
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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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One of the great things I liked about the new 6.7L engine was the lack of any diesel smell. While the tips of the exhaust pipes remain clean at 64,000+ miles, no soot, my truck now has a strong smell of diesel after each use. The truck is running strong but I can't figure out why this is happening.
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We've had a run of -20 to -40 weather here for the past few weeks.
A few weeks back I noticed that when I climbed into my truck after command-start warm up for 10 minutes, and I could smell strong exhaust.
I figured it was hopefully the wind, or an isolated event.
Over the past few weeks I've used my truck for 3-4 more around town runs and every time I warm it up I get the strong exhaust smell. It's that rich, eye watering, sickening exhaust smell. I also notice a small yellow frozen puddle under the exhaust tips that wasn't there before.
It's bad in the cab, but even walking around outside the truck and the smell is sickening. I actually just started the truck and I could actually smell the exhaust smell faintly, from inside my house! This has never before occurred. Prior to this, a person could hardly tell it was a diesel by the smell of the exhaust.
Once the truck is up to temperature the smell seems to disappear, or at least lessen.
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Why I am smelling coolant? I have a 2004 6.0 SD.It generally happens when accelerating up to freeway speeds or passing cars, Medium to hard acceleration and the smell is strong and will go away after a few min. The obvious thing is to check for a leak but I haven’t seen any.
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I'm checking all places to look for a fuel leak. I park on a concrete slab, with no drips.
I have already mopped up as much fluid from the valley from recently having all of the injectors replaced. I still need to clean it further with simple green, and stuff white paper towel in the valley so I can really know if there is a leak.
3 years ago I replaced the water drain valve o rings, but I suppose they could have gone bad again.
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2002 Excursion 4x4 7.3 PSD 90,000 miles Hydra Tuner
the past few days I started smelling diesel fumes in the cab of my truck with bent on and also at the front of the truck when installing new bumper and winch. It's not real strong in the cab but pretty stout at the bumper. I have poped the hood and made a quick visual inspection and from underneath the only evidence of any leak is some power steering fluid which is a different issue (I think)
a week or 2 ago I was cleaning the Ex and noticed 2 or 3 drops of red fluid on the concrete under the Ex I crawled under and looked up and the steering knuckle was pretty wet. Popes the hood and took a look from the top and the power steering pump was sticky and dirty but the only fluid was on the top of the cap.. I'm not real familiar with the set up on the Ex but I have heard the PS support the break booster. From visual inspection it seems as though the fluid is coming they the small (vent?) hole on the cap. What I can/need to do to stop this?
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Diesel smell in cab. 2000 F350 7.3 158K on the clock. Just noticed it 3 days ago. Been meaning to address the passenger side fuel line clamp issue. Learned about that one here. Gonna tear the stuff out to get at that one Tuesday. Replacing the clamp. Hope the fuel line is not already compromised.
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no change, changed stand pipe and dummy plug on driver side, no change and guess what? Now I am stuck on the side of the road waiting to give my last $100 to a tow truck! Engine is hydrolocked, fuel pressure is low, starts off at around 20 and works up to 54 with key on engine off, and that is as much as I know from the side of the road with out my AE. Blew white smoke also. Smelled of unburnt diesel. I think it's linked to my rough running issue. Maybe a bad injector? But every time I did the click test they all passed. Idk, I'm gonna remove the glow plugs and see which hole is loaded and with what. . .
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I have a 2010 Prius and it has developed a very strong mold smell/odor. It is strongest when the car has been sitting with the windows up. I have tried many of the tips in the forum regarding not using the recirc mode. I've clean the car inside and out, mats, carpeting, every compartment.
I have talked to the dealer parts counter and replaced the cabin air filter with the carbon filter and used the 2 can treatment that Toyota sells (one in the a/c drain x2 and the other in the air intake.). No joy.
I took it to the service department they did the same thing - again, no joy.
They have asked me to bring it back for, and I quote, "exploratory surgery." I asked if this the covered under the Toyota Certified Warranty. He could not confirm that it would be covered.
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Ok, finally smelled the smoke and its fuel. Now, it only smokes when idling and in drive! If I put it in park it don't smoke! What in the world is going on?
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Just happened today right after I bought diesel. thought it may be water in fuel but after researching wondering if it is injector, etc. It starts every time knocks real bad sometimes for a minute, but clears up to idle ok. During idle no smoke, slightest acceleration however produces white smoke harder I accelerate more it plumes and it smells like diesel in the air.
Cannot get past 15 or so mph till switching into 2nd gear then 25mph max. Had to drive 4 miles like this I can say it cleared up and drove 1/2 mile until I had to stop at a traffic light then going from idle to acceleration again ran bad rest of way home another 2 miles.
A few years ago I did have a rough idle and accel. similar and it ended up being the broke pick-up/sending unit in tank (but of course that was when you get to around 1/4 tank of fuel and didn't run bad above that much fuel in tank), plus there was almost or more than a gallon of water in tank. I have done the mod for the fuel pickup with hoses, filter canister, etc. but wondered at first today if I had gotten bad gas or water in the tank again. Not sure how that much water got in the tank to begin with but that was bout 5 or 6 years ago.
Truck has over 200k miles and Ive had it for 11 years. In the morning will check the ICP sensor by unplugging look at fuel filter bowl, etc. A question I have is: Is water heavier than diesel, would it run thru my line first? thinking diesel is heavier than gas because of oil content....
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I let my sister borrow my 1995 4 banger Ford Ranger for about a week. To make a long story short, when I drove it home I could smell a really strong gas odor so I pulled into a gas station and noticed gas pouring out of from what looked like the fuel filter area right under the driver's side.
Anyway, it took another 5 gallons to get home and I later crawled under and took a look. It looks like someone grabbed the fuel line and tried to unsuccessfully pull it out of the fuel filter by hand. I could literally see the imprint of the person's hand where they grabbed the line. They had pulled the line so hard that it crimped and split which is why gas was leaking like a water hose.
I picked up a Ranger specific Dorman fuel-line repair kit from Advance and had my brother install it for me as I'm no mechanic. It was fine for a few days and then I started to smell gas again so I crawled under and took a look. There's just barely a small leak coming from the connector barb/union on the kit. Anyway, I didn't know what else to do so I dropped the Ranger off at a local shop this evening. With that said, this is fixable, right?
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Has encountered a strong odor of washer fluid when using it on your windows. I was driving to work this morning through a snow storm and needed to use my washer fluid for the first time. As soon as I turned it on the entire cabin was filled with that smell. Could this be a leak?I thought it was all confined within the engine compartment so not sure why I smell it immediately upon using.
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2002 7.3 F350, 190k miles ....
If there is indeed diesel fuel in my coolant, what is the most common cause of this problem? Truck has low power when towing 8 tons.
I've replaced water pump due to truck overheating and blowing off radiator cap during first hard tow up steep hill.
Replaced all radiator/heater/coolant hoses.
Replaced radiator.
I've also flushed the cooling system 5+ times now with coolant flush and distilled water. Each time, less and less evidence of brown-colored stop leak.
The stop leak looked like diarrhea, slightly chunky. After the third flush, stop leak in coolant lessened.
HOWEVER -- 4th/5th flush of coolant each still looked like brown milk. Coolant has a strange chemical smell, possibly diesel fuel.
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I'm hoping it's a small simple fix when I climb under the hood. Has happened before, but was an easy fix. The smell is much stronger this time. Any major problems any of you have had if I can't find the culprit?? Learning as I go...always up for checking on every possibility.
2004 F250 SUPER DUTY 6.0 ......
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My wife was driving to work today and she called me when she was almost to work and said that when she was at the red-light and said when she started from the red-light the car was fine and she hit a certain rpm and the rpm's dropped and there was a strong smell of fuel. The car was still running and would idle fine but was running almost like it was flooded or had a miss like a coil pack or spark plug. There was no check engine so I am not sure I haven't got to look at the car yet.
I forgot to mention a few months back she had a check engine for the intake manifold runner flap called the dealer and set up an appointment to take it in. Took it up and by the time we got there the check engine was off and car was running fine no issues. They said no sense in bringing it in now just set another appointment if it comes back on which it never has and still isn't on but I am wondering if this problem is related to that? I know for sure that the car is still covered under the enhanced warranty for the injectors and intake manifold.
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Not at the exhaust, but from the engine compartment. Have to open the windows at a stoplight. Can also smell it when I walk past the parked truck. What's up?
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I remember reading very recently about someone who found a fix to the strong fuel odor on cold starts. I can't seem to find it anywhere. I think it mentioned something about a bad ignition coil or something.
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02 7.3L SD Im on a long haul and think I might have bought some bad diesel. It is shuddering a little kind of like a miss. It started right after I stopped for fuel. Is this going to damage my engine to keep plugging along? Is it just going to run kind of rough until I burn up the bad fuel? Ive got about 200mi to go so just needed to know if its safe to keep driving or am I going to be stranded.
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I own a 99 Mk4 Golf 2.0L the issue I have been experiencing for almost a year now. Is that I'm getting a fuel odor smell every time the car is either idling or moving. My check engine light is on I have also noticed after pumping fuel the car has a difficult time turning on. It eventually turns on and runs .
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