hello I’ve got a 2005 953c quit running on me last week. Just slowly idled down and died like you flipped off the switch. No smoking or anything of that nature. Ran through everything and am getting only 6.5 volts to the fuel solenoid while cranking. My questions are what should the voltage be to the fuel solenoid and what supplies it and what would keep it from getting supply voltage? Any input appreciated Thank you
You could probably use an electrical schematic. Do you have a 2ZN or BBX-prefix machine.? If it is 2ZN is the S/N above or below 1750.? If it is BBX is the S/N up to 599, between 600 & 1999, or over 2000? Answers to the above identify the correct electrical schematic. By "fuel solenoid" are you referring to the engine shutdown solenoid mounted on the back side of the governor.?
Bbx between 600-1999 Do you have a link to that or can point me in the right direction? Fuel solenoid on the pump Number 1 on the photo attached. Hope this helps
I'll send you the electrical schematic. Keep an eye on your messages. Is the SERV CODE icon continuously lit up on the Monitor Panel.?
replied to your message, currently not lit up or flashing after harness replacement
Forgot to mention I replaced the engine side harness thinking it might have been corrosion or wiring due to the harness being in rough shape and it was throwing codes. After replacing the harness the Serv code light/msg went off. The three codes it was showing were 036.262.04 - 036.164.11 - 079.70.03 Thank you nige for helping me with the codes and information. If anybody has any input I would appreciate it thank you
How long after replacing the engine harness did the problem of it shutting down occur.? BTW the IAP Control Valve on the back of the HEUI pump works on the basis of a variable current supplied by the engine ECM. There is no information anywhere indicating what voltage might be in that circuit. However from a quick look at the electrical schematic I am pretty sure it will not be machine system voltage. The Codes, for anybody interested. 036.262.04 - 5v sensor power supply short to ground 036.164.11 - Injection Actuation Pressure system fault. Either the actual injection actuation pressure (IAP) and the desired IAP differ by more than 3 MPa (435 psi) OR the current to the IAP control valve is at either the maximum output or the minimum output for an excessive period of time 079.70.03 - Park Brake switch incorrect inputs.
I assume that you've done all the basics of checking fuel filters, lines, etc, etc for blockages and/or restrictions.?
Yes done all the basics, fuses, switches, etc. since I’ve owned the machine 3 years, the ignition switch buzzer sometimes sounds different when turning key over but checked all that and turned up nothing. Also, the shutting down of the machine occurred with the old harness. Thought it was faulty wiring/grounding due to the harness being in bad shape so that’s what led us to replace the harness. Still doing the same thing with the new harness. The codes it was throwing stopped flashing with installing the new harness.
Please can you list everything you have done to the fuel supply system starting from the tank.? I always find it interesting that many people start looking at the most expensive parts of the fuel system as the root of a problem before checking the simple stuff.