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Old 10-09-2016, 09:53 AM   #1
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Diesel engine problem

We're on a trip in our 2004 Coachmen Cross Country. My wife who is on oxygen and can't walk very far and I are parked at a truck stop in Panguitch Utah. The engine was running fine two days ago and had been for over two thousand miles. Then, as I was driving the engine, Cummins 340 with turbo, lost power and we were barely able to get to this place. I have a scangaugeD and yesterday it showed that the fuel filter might be the problem. I was able to get the filter replaced, but that didn't fix the problem. The engine acts like its starving for fuel. The check engine light stays on and now, after replacing the filter/water separator, the scangauge gives a code of 97-03, which says when I look it up that it's fuel water sensor. I asked several places here in town and apparently there are no diesel mechanics here. It was suggested that we could have our motorhome towed to a diesel shop, but the nearest one is 100 miles away. Does anyone have any ideas as to what I could do? Any suggestions will be greatly appreciated. Were desperately trying to get back to Oregon.
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Old 10-09-2016, 10:01 AM   #2
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Have it towed to a diesel shop.
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Old 10-09-2016, 10:04 AM   #3
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Get hold of your insurance company or your road side assistance and have it taken to a diesel shop. You may ask some of the truckers where the best and closet shop is.
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Old 10-09-2016, 10:10 AM   #4
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The water separator is on the left side of the engine.

Wire disconnected?

Canister full?

You can most likely see it from below.
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Old 10-09-2016, 10:14 AM   #5
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On this engine, the primary filter and water separator are combined in one unit. I got it replaced yesterday, but that didn't fix the problem.
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Old 10-09-2016, 10:25 AM   #6
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I see, I guess the code was cleared at that time.

Sometimes if you turn the key off and on (do not try to start) several times it might reset.

If not!

I would disconnect the battery/ies and do a "hard" reset.
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Old 10-09-2016, 11:46 AM   #7
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Scan gauge should be able to clear code..,..sounds like air in fuel lines......clear code and re-start and try a little higher rpm then idle for a bit
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Old 10-09-2016, 01:50 PM   #8
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Sounds to me like the turbo booster boot came off.......why do I think that.....ours came off three times on our way to FL. Finally had to have the Ford Dealer put new clamps on it.
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Old 10-09-2016, 01:51 PM   #9
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Those water in fuel sensors are bad about 'holding' water on the tips. Draining and replacing the filter won't clear the fault. You actually have to dry the water off the sensor tips to get the error to clear.

If they didn't dry off the sensor when they replaced the filter then the error didn't clear.
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Old 10-09-2016, 02:21 PM   #10
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I just noticed that the guy did not replace the filter yesterday. I thought he did, but my original filter is still there. When I drain water/fuel out of the water separator petcock and then restart engine there is no code and no check engine light. Engine runs well at idle, but not when I rev it up. Rpm's start dropping, surging, and then I again get the engine check light and the scan code 94-02. I'm thinking that I should have Napa get me a new filter. The old filter could be clogged. Thanks for any replies Stan
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