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Ford E350 Fuel too rich / smokes & dies


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dftaz
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May 19, 2009, 2:32 PM

Post #1 of 4 (1092 views)
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Ford E350 Fuel too rich / smokes & dies Sign In

I just came into ownership of a 93 Ford E350 (30' motorhome) that sat for five years. With the help of fuel and injector additives as well as fresh gas, I was able to drive it 90 miles - but smoke and stink it did.

The fuel filter has been changed, the unit started up - but still smokes like the dickens and smells strongly of gasoline out of the exhaust. It idles very rough and dies if the accelerator is let up on.

We've replaced the crank case filter, air filter, fuel filter, plugs, wires, cap & rotor as well as verifying clicking noises in the fuel injectors.

Given that this unit has sat for five years and we've replaced the fuel, what other areas do we need to look at?

One other quick question, the fuel fill line isn't crimped - but is leaking fuel and consequently I can't re-fuel it. The only way I can see to get to it is to remove the tires. Any other suggestions?

Thanks!


Tom Greenleaf
Ultimate Carjunky / Moderator
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May 23, 2009, 8:49 AM

Post #2 of 4 (1085 views)
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Re: Ford E350 Fuel too rich / smokes & dies [In reply to] Sign In

What engine is in this? Could it be a carb still in 93 for a motorhome set up?

*Gotta fix the fuel line leak - that's a must. Is it rusted?
*Five years is enough time for fuel to be bad now confusing the situation. About certain!
*This should still use a CTS (coolant temp sensor) if injected and could be telling the thing it's stone cold all the time and overfueling it??

Any more info on condition and recent work?

T
_________________________________________
Long retired now


dftaz
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May 23, 2009, 12:29 PM

Post #3 of 4 (1079 views)
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Re: Ford E350 Fuel too rich / smokes & dies [In reply to] Sign In

Tom -

Thank you for the reply. GREAT NEWS!!!! We got the fuel fill hose replaced and can now fill it up with gasoline. The engine is a 460 and it was almost completely out of fuel when it was picked up - barely made it to the gas station. The first fill up worked, but the second attempt (90 miles down the road) is where we discovered the fill problem and had it towed home.

Data points to consider - we were going up a 7% grade and it averaged 25 - 30 MPH. Brown exhaust blows out on the downhill portion of the road. White, gas smelling exhaust blows out on start-up, but seems to go away after a few miles - then it blows out clear like vapors.

We haven't ran it in a couple of days out of respect for the neighbors - but have been working on repairing the roof and cleaning up the interior.

Today we'll check the CTS and make as much progress as possible.

Thanks again


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 23, 2009, 12:49 PM

Post #4 of 4 (1075 views)
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Re: Ford E350 Fuel too rich / smokes & dies [In reply to] Sign In

I can see the battle with the five years of non use. Being a motor home it would have a long heavy exhaust and would if cooler out do some whitish water vapor till fully warm and inside of the pipes and muffler(s) could have plenty of rust to get you the brownish color.

You can test a CTS and at the moment I don't have the ohms reading at hand. It would read higher or lower with cold and warm engine and if it does that it's probably ok. Where it plugs in could be the issue as well.

Off your topic - I suggest because of years unused and depending on how stored check the brakes! It might be worth taking them apart and relubing where they should be as it may be dry a a bit rusty now. Rotors and drums might do well to be just lightly machined to clean them up as well. Good luck with it,

T

More: SeaFoam in the fuel may really help with this!
_________________________________________
Long retired now




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