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Diagnostic Worksheet There are many operating conditions that lead to the malfunction WORKSHEET SAMPLE Customer name MR/MS Model & Year VIN Engine # Trans. Mileage Incident Date Manuf. Date In Service Date Symptoms l Startability l Impossible to start l No combustion l Partial combustion l Partial combustion when warming-up engine l Partial combustion when cooling down engine l Possible but hard to start l Others [ ] l Idling l No fast idle l Unstable l High idle l Low idle l Others [ ] l Driveability l Stumble l Surge l Knock l Lack of power l Others [ ] l Engine stall l At the time of start l While idling l While accelerating l While decelerating l Just after stopping l While loading Incident occurrence l Just after delivery l Recently l In the morning l At night l In the daytime Frequency l All the time l Under certain conditions l Sometimes Weather conditions l Not affected Weather l Fine l Raining l Snowing l Others [ ] Temperature l Hot l Warm l Cool l Cold l Humid °F Engine conditions l Cold l During warm-up l After warm-up Engine speed 0 2,000 4,000 6,000 8,000 rpm Road conditions l In town l In suburbs l Highway l Off road (up/down) Driving conditions l Not affected l At starting l While idling l At racing l While accelerating l While cruising l While decelerating l While turning (RH/LH) Vehicle speed 0 10 20 30 40 50 60 70 80 90 100 mph Malfunction indicator lamp l Turned on l Not turned on SEF907L TROUBLE DIAGNOSES TD27Ti EC-358 |