02-18-2017 02:45 PM
Do you work for a Cat dealer or an independent? Doesn't matter; I will still help you. It would just help me understand what your resources are. Do you have G3600 Troubleshooting Manual SENR6510-05? and schematic SENR5082-01? These are the latest manuals and these are the pubs that apply to your engine serial number.
02-18-2017 12:23 PM
02-18-2017 10:53 AM
Well, I do have a few other things to check. Do you have the detonation mixing system on this engine? That is a box on the lower left side of the engine jbox. I am going to have to study the detonation mixing a bit since I haven't worked on this in a long while.
Have you tried to see if the engine will run in PC CAL? This takes some of the ECM controls out of the picture. I have seen a lot of engines running in PC CAL because they wouldn't run otherwise.
Check the wiring (S780 WH-GN) from T-d on right buffer terminal box & all end to end T902 in eng jbox to T272 in remote panel to J3-29 on ECM. This is the signal back from the odd bank cylinders.
If you have a timing light with a line clamp, try finding the primary wire out of the CIS to the problem cyl and see if the CIS is really sending out a primary ignition voltage; check one of the good cyl too to verify same results on a good firing cyl. It could be that the CIS module has failed. Do you have a fault light blinking on the CIS box? Do you have a CIS reader to see what the CIS is displaying?
Check the data link wiring from T 910 and T911 in the eng jbox. These go into the detonation mixing box.
I probably should have said this first but your symptoms jumped past this. Carefully inspect the primary wiring from the CIS box plug to the transformers. Remove the conduit covers and look for chafed wiring, bare spots on insulation, etc. You might could do this running also and move the wires around. But be careful as this is over 100 volts with the engine running.
I don't have anything else right now. I will take a look and make some more comments. But you can check these out meanwhile.
By the way, where are you located?
02-17-2017 11:56 PM