Caterpillar P3500:
AT3430321 SER # FIRES BUT WILL NOT CATCH AND RUN

IF YOU GET LUCKY IT WILL START AND THEN IT RUNS FINE
HAVE REPLACED WIRE HARNESS
HAVE HAD ECM CHECKED REPLACEED CAM AND CRANK SENSORS
HAD CAT TECH SCAN WITH LAP TOP NO CODES EVERYTHING SEEMS OK HE RELEARNED TRUCK STILL WONT START SEEMS TO START BETTER ON GAS BUT RUNS ON LP OK
IT DOES SMOKE WHEN YOU CRANK AND QUITS WHEN YOU START IFIT STARTS
ALSO TRIED JUST GAS ALSO REPLACED SPARK PLUGS AND ACCELL SWITCH
PLEASE ANYBODY HAVE AN IDEA THE CAT GUY IS STUMPED ALSO
THANKS MIKE
  • Posted 30 Oct 2020 07:05
  • Discussion started by hdridermike
  • Kansas, United States
old guy
Showing items 1 - 2 of 2 results.
DOES NOT HAVE THIS
HAVE NOW ADJUSTED VALVES AND TRIED COILS FROM A RUNNING TRUCK ALSO DID COMPRESSION CHECK
  • Posted 31 Oct 2020 10:05
  • Reply by hdridermike
  • Kansas, United States
old guy
Does it have one of these on it

http://www.econtrols.com/products/fuel-control/electronic-pressure-regulator-epr

They are ridiculously unreliable and equally expensive, I had one go on a truck that only has 1100 hours on it.
  • Posted 31 Oct 2020 07:51
  • Reply by andrew_k
  • England, United Kingdom

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