Ford 7.3L Power Stroke (1999-2003) :: 2000 - Diesel Fuel In Coolant


Apr 22, 2015

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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Ford 7.3L Power Stroke (1999-2003) :: 2000 F250 - Oil Or Fuel In Coolant?

I have a 2000 F250 7.3L and I pulled this from the overflow tank. I'm thinking it's oil since my oil cooler is leaking but just want to make sure it's not fuel and need to do injector cups...

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Ford 7.3L Power Stroke (1999-2003) :: Check For Fuel In Coolant?

Is there any kind of test short of sending a sample to Blackstone or the like to verify if there is actually fuel in my degas bottle as opposed to oil residue from bad oil cooler O-rings?

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Ford 7.3L Power Stroke (1999-2003) :: Diesel In Coolant - White Smoke At Start Up?

I noticed about 1 year ago I had diesel in my coolant but wasn't sure.. took it to a Ford Guy about 45 minute's away.. He seems to know his stuff but when he tested the coolant the results said less than 2% diesel.. But he did find an injector issue and swapped it out..

Forward to present.. there is diesel in my coolant now , since the level is rising to almost overflow and I believe this has been doing on for quite some time as I have that smell you get in the cab..

BTW - All injector cups have been done about 3 Years ago.. On another note , I get white smoke on start up especially if the truck has sat for a day or 2.. What can cause diesel in the coolant.. I did a complete coolant flush this summer and was super **** about getting all the old coolant and gunk out.. Ended up with only clear water coming out the degas

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Ford 6.0L Power Stroke Diesel :: F450 - Fuel In Coolant?

My friend has an F450 with the 6.0, and discovered fuel in his coolant. I have the 7.3 in my truck, and know next to nothing about the 6.0. Can bad Injector sleeves cause this ? Is that the same as "seats" ? I am not up on my terminology. He thinks he needs new heads for his truck, but I don't agree.

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Ford 7.3L Power Stroke (1999-2003) :: 2000 F350 - Fuel Pump Location?

Where the fuel pump is located on a 2000 F-350 7.3L Diesel? Also, how complex is replacing this?

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Ford 7.3L Power Stroke (1999-2003) :: 2000 - Truck Not Starting - Water In Fuel

Okay a little update on my truck not starting, and for those who have not read my earlier post. My water in fuel light has been on in my truck for probably a month of use. I drained the water sep under the truck nonstop and added several bottles of water remover and the light would not go out so I assumed the sensor was just bad. (im new to owning a powerstroke btw) I broke down coming home from work, got it towed home, and still cant get it started. It will crank fine just wont fire up. I tried unplugging the ICP, i replaced the CPS, and ordered a new water sep/ fuel filter for under the truck. And the fuel filter on top was just replaced a month before breaking down. Every single time i drain the separator tons of clear water diluted fuel comes out before it turns greenish.

Not sure if this could be a cause of getting water in my fuel but one time i filled the truck up completely and it was like the water overfilled and probably a quart or two of fuel spewed out onto the ground. Not sure where it came from. Also I have just over a quarter tank so i was thinking maybe the float broke and I just needed to add fuel but today before i went to add fuel i drained the sep and tons of water came out... Im so worried about hydrolocking my engine or ruining my injectors. But I dont know if my issue even is water related if the sensor just went bad...

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Ford 7.3L Power Stroke (1999-2003) :: 2000 F250 - Electric Fuel Conversion?

So I'm not sure if I should post this here or in the 1994.5-97 section. The reason being I have a 2000 f250 with a 97 7.3. It currently has a mechanical fuel pump but they keep crapping out. We dont have the money to do a $600 diy conversion so were looking for a cheap solution.

So the 2000 has all the fuel lines and plugs to put a electric fuel pump in, but if I just threw a electric pump on then it would feed to the mechanical fuel pump which I'm guessing is a no no? Or possible?

If I put the electric fuel pump would I just have to remove the mechanical fuel pump and run lines from the pump to the bowl?

If the fuel bowl can't hold the pressure of an electric fuel pump then would I be able to swap the fuel bowl only and be good to go or is that impossible?

Let me know what you think were trying to do this as cheaply as possible.

2000 f250 auto 4x4, 97' 7.3 motor.

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Ford 7.3L Power Stroke (1999-2003) :: Fuel Smell On And Off / Strong Odor Of Diesel

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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Ford 6.0L Power Stroke Diesel :: 2004 - Fuel Leaking Into Coolant

I recently was informed by my local mechanic that fuel was leaking into my coolant. He said I had a cracked head based on this and it would give soon. Well, he was right, and now I need to do a head job. I found new heads, but would like to know how many book hours this should take before I proceed. He gives me a wide range of time, and don't want to get taken advantage of.

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Ford 7.3L Power Stroke (1999-2003) :: 2002 - Shuddering - Diesel Fuel - Damage Engine?

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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Ford 7.3L Power Stroke (1999-2003) :: Diesel Smell Coming On And Off - Fuel Bowl Leak?

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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Ford 7.3L Power Stroke (1999-2003) :: 2000 - Diesel Smell At 158k Miles?

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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Ford 7.3L Power Stroke (1999-2003) :: 2000 F250 Runs Out Of Fuel On Hard Pull / Long Hills

Every time I hit a hill, loaded or empty, or get on the truck on level ground after about 15 seconds it acts like it's running out of fuel. The pump starts getting noisy like it has air in it, but it'll straighten out eventually. If you don't let off the fuel it'll eventually stall out. No check engine light, no codes. Truck has a ts chip but it does it on all settings. New fuel filter, changed oil with hot shots secret, new air filter, hutch mod done. I'm at a loss for what to do. Good fuel pressure also.

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Ford 6.0L Power Stroke Diesel :: 2003 - Coolant Flow Not At Its Max / Blocked

Coolant flow seems to be not at its max output seems like it's blocked somewhere. Lots of pressure in bypass line of radiator after clamping of hose and releasing pressure of degas bottle?

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Ford 6.0L Power Stroke Diesel :: 2003 - Engine Heated Up Due To Loss Of Coolant

So I have a 2003 6.0 king ranch w/ 164k on it.. EGR delete, high pressure oil pump, coolant filter and SCT tuning. A couple months back I had a coolant flush done. After about a week the coolant tank was empty.. Engine heated up due to loss of coolant.. I flushed system again and put ford gold coolant back into the tank. (5 gallons). A couple days later and coolant was very low and engine heated up?? There are no signs of leaks anywhere...Added water and it cooled back down. I'm lost. EGR is deleted but no studs done.....

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Ford 6.0L Power Stroke Diesel :: 2003 - Loss Of Coolant When Pulled Heavy Load

Loss of coolant! I have a 2003 6.0 diesel with 200,000 miles. I put in a new oil cooler and ipr egr delete two years ago also flush the system and added a coolant filter. I filed it back up with the red antifreeze. Now the problem I have never lost any coolant since then and my deltas are about 5 degrees. But the other day I pulled a heavy load the first one since I did the repairs (coolant got up to 220 degrees and would drop back down) when I got home the coolant tank was about a inch low. I let the truck sit about 3 hours and checked it again and it was back at the full mark. Drove it the next day and it's back low about a inch, Any clue what's going on.

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Ford 7.3L Power Stroke (1999-2003) :: Ran Out Of Fuel With 1/8 Tank And No Low Fuel Light?

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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Ford 7.3L Power Stroke (1999-2003) :: Cranks But Won't Start - Fuel Pump Not Pumping Fuel

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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Ford 6.0L Power Stroke Diesel :: 2003 - Coolant Leak Slowly While Not Running And Quickly When Driving

My 2003 6.0 has a coolant leak. It leaks slowly while not running and more quickly while running. I have about an 8 mile drive to work every day, I can make it there and back without having to add coolant but I'm cutting it pretty close by the time I get home. In short I go from the max fill line to bone dry in about 24 hours.

With the truck running I can see water getting slung around all over the front of the engine but the majority of it seems to be coming from around the two larger pulleys in the middle. I've read that this can either be the crankshaft seal or the water pump, any way to know for sure? Any other possibilities?

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Ford 6.0L Power Stroke Diesel :: 2003 - Coolant Pouring Out The Tail Pipe After BPD Oil Cooler Installation?

My buddy install a BPD air/oil oil cooler in his 2003 F250 last week and now there is coolant pouring out the tail pipe. I haven't seen it but he tells me there is quite a bit coming out. It wasn't doing this before we installed the BPD oil cooler. Normally I would say bad EGR cooler but his EGR is deleted. This is the 3rd BPD cooler I've put in and this is the first time I've had any issues after the install. The install went smooth other than we broke the radiator and had to install a new one. I feel bad cause I'm hoping it wasn't something I caused but I just can't think of anything I did during this install that would cause coolant to be getting into the exhaust. He just had it towed to the local Ford dealership.

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