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Topic: Fuel shutoff Solenoid C8.3 Cummins (Read 6154 times) previous topic - next topic

Re: Fuel shutoff Solenoid C8.3 Cummins

Reply #20 –
I have installed a new LarryB solenoid, that I bought from another forum member.  It did not have the correct connector as it was for a Dodge truck with a Cummins engine.  I spliced my old connector on the new one after verifying that it worked properly.  Staggered the splices so that they are not at the same place in case the heat shrink tubing wears through.  Not sure that my problem is solved as it was intermittent, but it worked perfectly after the install.  The hole spacing 2 1/2 inches is the same as the old one although it is larger (see pictures).  I also had to run a 1/4" drill through the square rod end in order to get it on the shut off valve arm even though the hole measured 1/4".  In addition I ground off some of the flange on the original mounting bolt heads, for more clearance with the solenoid body.  Although it is larger than the original, I have no idea if the pull is greater.  If it fails, I will let you know.  Could not justify big bucks for an item that would not strand me somewhere if it did fail. 

One other thing that I discovered by accident is that the engine will start  and run without the solenoid installed.  The shut off valve seems to have a spring inside that moves it away from the closed position a little bit.  Doubt if it would allow enough fuel through to generate much power in that position. 

Re: Fuel shutoff Solenoid C8.3 Cummins

Reply #21 –
Update on my fuel solenoid: contacted Larry B's website and let them know mine went awry. Larry called me a day later and asked me questions about all the troubleshooting steps (connectors, ignition solenoid, power at the plug, etc). after confirming I did my homework, he sent a replacement to my daughters, came 2 days later. Installed and no more issues! I have to give Larry B credit, the solenoid was a year old, and warranty is only 3 months, but he corrected the issue immediately. He even sent the one with the correct connector! Great service!