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Old 11-16-2014, 06:49 AM   #1
Freightliner Owners Club
Join Date: Feb 2012
Location: Rockport, Tx
Posts: 38
Where are the engine fuel pump fuses

I have a 1999 Winnebago suncruser with the cummins 5.9 engine on a freightliner chassis. it will crank but not start. where are the fuses that power the ECM and fuel pump?

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Old 11-16-2014, 09:56 AM   #2
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Fleetwood Owners Club
Freightliner Owners Club
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Location: Silver Springs, FL. USA
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Suggest you give Freightliner Custom Chassis a call (have the last 6 digits of the VIN handy) and ask. They should be able to answer that, as well as advising on possible causes. 1-800-FTL-HELP

Have you changed the fuel filter(s) and primed the fuel lines? Lack of fuel is often that simple.

Gary Brinck
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL
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Old 11-16-2014, 11:42 AM   #3
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Country Coach Owners Club
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Have you checked to see if the fuel shut down solenoid is working correctly?

If it's shaft retracts when the key it turned on you have power to the solenoid and the ECM is probably ok.

Fuel filter and priming is usually an inexpensive routine fix as Gary suggests.

Just had the same problem on my diesel generator on Friday. The fix was to disconnect and reconnect the fuel solenoid wire connector.

But, I changed the fuel filter first, to no joy.
1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
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Old 11-17-2014, 12:43 PM   #4
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had air in the fuel line. how does that happen?
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fuse, fuel

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