OBJECTIVE: Describe general troubleshooting techniques used in the maintenance of a
diesel fuel system.
troubleshooting a diesel engine, keep in mind that problems associated with one make and
type of engine (two-stroke versus four-stroke) may not occur exactly in the same way as in
another. Specifically, particular features of one four-stroke-cycle engine may not appear
on another due the type of fuel system used and optional features on that engine. Follow
the basic troubleshooting steps listed below before rolling up your sleeves and trying to
pinpoint a problem area.
as much information from the operator as possible concerning the complaint.
the problem in detail first, beginning with the smallest and simplest things.
the problem symptoms to the basic engine systems and components.
any recent maintenance or repair job that might tie into the problem.
double-check and think about the problem before disassembling anything.
the problem by checking the easiest and simplest things first.
possible, use the special tools and diagnostic equipment at your disposal to verify
acomplaint and pinpoint the general area.
the cause(s) of the problem and carry out the repair.
the engine and road test the vehicle to confirm that the problem is corrected.