Medium and Heavy Trucks
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Hi my name is***** is your machine serial number? Check the wiring and connections for damage or shorts and for a faulty glow plug relay sticking. Test all your fuses for power on both sides with the key switch on. Test your battery and clean, inspect, tighten all your battery to starter connections including all grounds and test that your alternator is charging around 2 volts above battery voltage with engine running. Low voltage and poor connections and grounds can also cause these symptoms. Let me know
Thanks for the update. Check for leaks or restrictions between the tank and pump sucking in air. If yours has the primmer bulb check that is it working as they are known to fail. If you are interested I can hook you up with the complete service book over 400 pages in PDF for immediate download. Ill send over the request just in case you are interested..
You can install a clear hose inline on the fuel suction to see if you are loosing prime or sucking in air. Watch for air bubbles. also check for power tp the fuel shutoff solenoid with the key on and engine running and that the shutoff is actually mechanically working. Let me know
I will be heading out with family in an hour so my availability for follow ups may be spotty during the holiday weekend. i just wanted to give a heads up in advance. Let me know
ode 21-03 indicates that the bobcat controller is not getting a voltage signal on wire 8550 telling it that the glow plug relay has triggered on when commanded. The problem could be a broken 8550 wire, or a faulty relay.
Check if the glow plug relay is clicking on when the ignition is turned on. When on, it should have voltage at pin 86 to trigger the relay on, pin 30 (from the fuse), and through to pin 87.