2000 v10 6.8 water in fuel ?

[Iron Man]

There has been problems with vacum leaks causing the lean condition. Look at passenger side valve cover follow the tube that is at the back to behind the throttle body. Where the tube attaches is a 90 degree rubber connector that goes bad, you will have trouble seeing it you may need a mirror. I had the same problem on a 5.4 same engine just 8 cylinders. What you are describing does not sound like water in the fuel. While water will cause lean condition you should get misfire codes on the cylinders.

[frankdamp]

The quick fix for water in the gas is a quart of vodka for every 20 gallons of gas. Water dissolves in alcohol and is no longer in droplets within the gasoline, so it goes through the fuel delivery system without blocking things up with the droplets.

[Wanabee FTer]

Have you tried driving it with a fuel pressure gauge installed?
Would be good to know what the fuel pressure is when the concern is happening.
Otherwise all I can do is guess, I would suspect a partially plugged fuel injector or fuel pressure regulator problem.

[hippievan]

i have bought that hose and pcv valve but have not installed it yet i can't feel any cracks in it though the fuel pressure is great but i don't know what volume it is suppose to come out at. thanks for the help to all. i will post the fix when we find it im sure there will be others.

[RABBITFISH]

I know it may not be helpful, but I had a simalar problem with a Ford engine a while back and after the shop had gone through all of the above mentioned checks, a friend suggested that I change the spark plug wires. He said that after a period of time the wires broke down to where they did not sustain the fire needed in a load situation. It was worth a try and not as expensive as I had thought. Needless to say after installing a new set of wires much to my amazement he was right. Ran like a clock with no more problems. FWIW

[hippievan]

yes the technician has drove with a fuel gauge plenty of fuel pressure. the rv only has 54k on engine it is a 2001 chinook concourse ford v10 6.8l it runs great other than 3/4 to full throttle it's just like a potato in the exhaust or running on fumes yes we have disconnected the catalytic convertor with same results.

[Max Hubrich]

If you leave it sit for long periods of time with low fuel in the tank you will get water in the tank through condensation. Any light plane owner will tell you that. It becomes evident when the tank sumps are drained during pre-light inspections.

Always keep your fuel tank full of gasoline when sitting idle for periods of time.

[rough road]

frankdamp, if vodka works the Polish moonshine called, 'spiritus' would work way better, my head still hurts.

[Iron Man]

Originally Posted by RABBITFISH

I know it may not be helpful, but I had a simalar problem with a Ford engine a while back and after the shop had gone through all of the above mentioned checks, a friend suggested that I change the spark plug wires. He said that after a period of time the wires broke down to where they did not sustain the fire needed in a load situation. It was worth a try and not as expensive as I had thought. Needless to say after installing a new set of wires much to my amazement he was right. Ran like a clock with no more problems. FWIW

These engines have no plug wires they have 10 coil that sit on top of each spark plug. If you think it is water dump rubbing alcohol into the fuel tank. It will bind with the water and will burn out while driving.

[SRT]

On my '99 F53 one of the coolant lines going over the motor was leaking when going up grades or hard acceleration. Seems the cheap hose clamp allowed coolant to leak down into the spark plug wells. This allowed a short to occur. Ran good on the flat. Put in new plug boots and coil. This is after spending big bucks to drop the tank, clean it and replace the fuel pump.

Put up with this for several years until a mechanic at the Ford repair place in Tucson knew about the problem.

[hippievan]

thanks SRT ill have the technician look at that. he has order a external fuel pump wright now to hook up to see if that will fix the problem we don't think the volume of fuel is correct but have plenty of pressure. of course i'll keep you all posted on the out come of this nothing worse than having a engine proble that can't be found quickly. was yours the v10 6.8 l engine SRT ?
thanks again

[powderman]

If your problem is water in fuel, you must have a lot of it, as most all gas sold today has 10% or more alcohol and should cue itself with the next tank. I would be looking for a vacuum leak.

[SRT]

Originally Posted by hippievan

thanks SRT ill have the technician look at that. he has order a external fuel pump wright now to hook up to see if that will fix the problem we don't think the volume of fuel is correct but have plenty of pressure. of course i'll keep you all posted on the out come of this nothing worse than having a engine proble that can't be found quickly. was yours the v10 6.8 l engine SRT ?
thanks again

Yes, the engine is the v10. When the mechanic fixed the problem he showed me the "high water" marks on the spark plug boot. He also changed all the plugs with new boots. Cost me a few bucks but the end result was worth the cost.

[hippievan]

Originally Posted by hippievan

thanks srt ill have the technician look at that. He has order a external fuel pump wright now to hook up to see if that will fix the problem we don't think the volume of fuel is correct but have plenty of pressure. Of course i'll keep you all posted on the out come of this nothing worse than having a engine proble that can't be found quickly. Was yours the v10 6.8 l engine srt ?
Thanks again

it's fixed it was the pcm giving false readings to the mass air flow sensor thanks everyone.