Cat 345C 2007 problem

andrew80 · Apr 3, 2013

I have a friend and he has this cat 345C excavator. The problem is when turning the engine stops. Also when working the engine rpms slow down, sometimes it stops. When cold the machine starts fine.
They changed fuel filters, but still problem persists. Do you have any clue?

eric12 · Apr 3, 2013

does it stop like the motor dies? or electrical short everything dies? does it restart right away or not for a while? can you dig and drive it and it only dies when turning?

andrew80 · Apr 3, 2013

It doesn't start right away. If you wait a few minutes, starts fine. Sometimes when turning it dies, sometimes is working and dies.

Nige · Apr 4, 2013

When it dies pull off the fuel filter and check to see that there is fuel in it. Another idea would be to temporarily install a line from the fuel pressure test port into the cab to a gauge and watch the gauge while working. Does the fuel pressure drop significantly when the engine dies..?

Also is it throwing any electronic diganostic codes..?

andrew80 · Apr 4, 2013

No electric codes. My friend will change filters today. I`ll let you know what happens

Per Eriksson · Apr 6, 2013

as said, check fuel pressure, either with a gauge or bring it up in the monitor.

andrew80 · Apr 6, 2013

Sorry for my ignorance, but how you can see fuel pressure in the monitor?

Per Eriksson · Apr 7, 2013

enter service mode, code is FFF2 then you'll find that and lot more under status

andrew80 · Apr 7, 2013

Thanks Per. I was googling and found that I have to keep pressing the switch 8, press and hold 3 and 4 together for more than 2 seconds to enter service mode it´s that right?

barnicleson · Apr 8, 2013

Checked fuel fittings for screens from tank to pump?, Is fuel breather blocked?? Vaccume when taking fuel cap off?

alanmurfee · Apr 8, 2013

I would like to know how to check fuel fittings for screens from tank to pump. How often do filters need to be changed?

Cat 345C 2007 problem

andrew80

Well-Known Member

eric12

Well-Known Member

andrew80

Well-Known Member

Nige

Senior Member

andrew80

Well-Known Member

Per Eriksson

Senior Member

andrew80

Well-Known Member

Per Eriksson

Senior Member

andrew80

Well-Known Member

barnicleson

Member

alanmurfee

Member