I've took some pictures and they won't post here so I can email them but one valve is in the pump and if you see a silver ball that's it and it's some kind of pressure valve. Mine was all rusty inside. The other is below the main filter and its a silver flat head plug screw which takes an Allen wrench and the first one I changed was underneath the small filter and it inserts upwards into that filter tube.
losing fuel pressure on my 2011 DD15 Cascadia
Discussion in 'Freightliner Forum' started by sandman608, Mar 30, 2014.
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Check for fuel leaks on the engine. Make sure to check the fittings on the l/s rear of the head. The dealer should have pressure tested the engine fuel system.
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Andy’s Thanks this.
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