Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 11, 2025 ...

I had an eight of a tank (dash gauge) and used a dip stick to verify fuel (showed 6") prior to checking the fuel filter.  I added another 13 gallons of diesel, primed and started it, twice.  Each time it started up and ran for about 30 seconds before shutting down. 

All right, this is a long shot and based solely on the freak thing that happened on my trip home after purchasing our 2007.

Assuming you have a generator supplied by the same fuel tank, check to make sure the fuel lines were not swapped when initially installed. To my knowledge, this only happened on some of the 2007 builds. Would go undetected until the tank fuel level dropped below 1/4. At that point, the generator should suffer fuel starvation. This is because the fuel line, if installed correctly, is located higher in the tank. The logic is this would alert you to a low fuel situation, with 1/4 tank supplying you with enough fuel to get to a refill site. On my 2007, the lines were swapped when the coach was built. This resulted in the engine cutting out at 1/4 tank, while the generator would start right up and purr happily away. Problem solved, once detected and the fuel lines reconfigured to what they should have been.

Like I said, a long shot but you never know.

Hope this helps.

Don

John's comment is sound as just recently I was trying to figure out how many gallons would be in every inch of fuel.

I am suspecting the fuel pump at this point.  Does anyone know the location (don't say it is inside the tank)?

Sven,

My post immediately above (#14) was not directed at a diagnosis of your issue, but merely a point of information about "best practices" when it comes to fuel levels.

Sven asked this question up above, and has not received an answer.  I don't have the same engine, so I can't help him, but I'm also curious.  He obviously has fuel in his tank, above a level where it was previously running.  If the engine won't run, fuel pump seems to be the next logical item to investigate.

SO, where is the fuel pump on a 2000 model U320?

I assume it is electric, controlled by the engine computer, with some sort of fuel pressure signal inputs.  Seems like there would be several places ripe for potential (electrical) failure.  Any experience out there with replacing or trouble-shooting this pump?

Not sure on 2000 ism, but believe earlier ones had no electric pump, only engine driven mechanical pump. There is an electric priming pump on some units for filling fuel filters and venting air from fuel lines.

Only mechanical pump on ISM
When I replaced my fuel line from tank to engine pump there was only filter and water separators between them.

Everyone seems to be suggesting that it is a low fuel problem.  Logic "tells" me that having an additional 13 gallons over what it previously ran on would eliminate that as a problem.  The only thing I've done to the coach is flip the two switches under the dash that I previously described (separate subject with that heading) - could one of them be a fuel shut off?  I will give FT a call  today.