2004 Sabre Cat 700 quit running

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trailshredder

Member
Sled was running good than all of the sudden quit like hitting the kill switch. What I have come up with is I have a fuel delivery issue. The fuel pump is not getting power when turning the sled over. I have run direct power to the fuel pump and it does pump fuel. I have continuity on the red wire that goes to pump all the way to the ECU. The sled has spark and good compression (125# both cyl.). But when turnig over no power to fuel pump. I can not find a wiring diagram on line. I would assume the fuel pump should have some sort of realy but can not find one on the sled. Any ideas?????
 
T

towtruck

New member
sounds just like by buddys 05 M700 -
happened under warrenty but we are the bottom of a monster bowl in the snowies and it took 12 guys 1/2 day to get him back to a trial
 
E

ezra

Well-known member
if u think it is bad just make some jumpers and plug pump in to any other 12v .
I am not sure about the designed coil on stator but who knows
 
T

trailshredder

Member
Ezra...we did hook the pump directly to a 12v source and the pump does run. We aren't getting any power to the pump while turning the engine over. I tryed a different ECU out of an F-7 and same thing, so that eliminated the ECU.
 
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stealthv

New member
Looking at the wiring diagram, there is no fuse or relay. The fuel pump (#8) is wired directly to the ECU (#10) through pins 31 (black ground) and 32 (red +12VDC).

Is the 7.5 amp fuse good that comes off the starter solenoid?

Since you've tried another ECM, have you checked for a short to ground on the positive fuel pump wire?

Redneck solution - Wire your fuel pump (with a fuse) to the key switch terminal A which will run the fuel pump directly off the battery.
 

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