Mitsubishi FCG 25K:
Start/Run Issue

This problem has seemed to get worse as time goes by. (Propane Throttle Body system) When trying to start, the engine fires off immediately but dies off, after many attempts (10-20) it will finally start and run. It runs very good and smooth once started with the exception of when the throttle is released it seems like its going to die but always catches back up and doesn't die. If it is turned off it will start back up no problem unless 5-10 minutes go by, the start issue comes back.
Replaced propane filter no help.
  • Posted 11 Jun 2014 05:33
  • Discussion started by allen_w
  • Florida, United States
Showing items 1 - 1 of 1 results.
we could be "more sure" if you gave us a serial number, but my bet is your machine is a af82E series truck, and where your problem is, is related to the crankshaft sensor, and the wheel that is read by the sensor. check for anything caught in the wheel, and then use a non-magnetic (brass) feeler gauge to insure the gap (in 4 spots, mark the wheel for 3,6,9,12 o'clock positions and then check all 4 spots for the same gap. The pickup is a magnet and if you try a regular feeler gauge you won't be able to tell when it is too loose.
  • Posted 11 Jun 2014 09:11
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"

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