Automotive Servicing NC III case studies
Automotive Servicing NC III · Put your knowledge to work in context.
Automotive Servicing NC III is a Philippine TVET competency credential for people who service light vehicles at a level beyond routine maintenance: diagnosing faults, repairing engine mechanical systems on gasoline and diesel units, overhauling brakes, steering, suspension, and drivetrain components, and documenting work to shop standards. It suits working mechanics, fleet and casa technicians, vocational graduates, and OFWs who need a portable, competency-based qualification recognized by Philippine employers and assessed against industry standards. The Automotive Servicing NC III case studies are 5 cases and about 3,360 words.
1Gasoline Spill Over a Service Pit
At 09:40, a technician is draining a 55 L fuel tank on a 2016 sedan over the workshop's 1.2 m deep service pit. The drain hose slips; about 14 L of gasoline spills onto the pit floor and spreads toward a floor drain.
819 words, about 4 min2Cylinder Bore Taper and Oversize Decision
A 4-cylinder 1.6 L gasoline engine is in the machine shop for a rebuild after overheating. The service manual gives a standard bore of 86.000–86.020 mm, maximum taper 0.010 mm, maximum out-of-round 0.008 mm, and piston-to-wall clearance 0.025–0.045 mm measured at 90° to the pin, 12 mm from the top of the skirt.
657 words, about 3 min3Parasitic Draw After Repeated Battery Replacement
A 2019 compact SUV with a 70 Ah battery and 150 A alternator is towed in after a no-start. The customer reports that the engine cranks slowly and dies after sitting for three days; the battery has been replaced twice in six months by another shop.
695 words, about 3 min4Brake Pulsation With a Rotor Below Discard Thickness
A 2018 mid-size SUV with 48,300 km comes in with steering wheel shake and pedal pulsation when braking from 80 km/h. The complaint began 2,000 km after the front pads were replaced at another shop; the rotors were not replaced.
596 words, about 3 min5CVT Fluid Mix-Up and Warranty Comeback
A 2020 compact crossover with a continuously variable transmission (CVT) comes in at 62,400 km for a “transmission service” requested by the customer after a transmission shop recommended it. The job card lists “CVT fluid - part number 08886-02505,” but the parts invoice shows 12 L of bulk “multi-vehicle ATF” was issued.
593 words, about 3 min