Peak PerformanceMobile Mechanics
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Job files

Every job here is real. What was reported, how it was tested, what was found and what was done. No stock photos.

Faults we diagnosed

Engine bay of a red Holden VF Commodore Calais V8 with the bonnet open

Holden VF Commodore Calais V8

Reported
Running rough, with a noticeable misfire and a rough idle.
Tested
Full diagnostic assessment, then testing of the injectors.
Found
Injector #6 had no electrical resistance, which points to an internal injector fault.
Done
Returned the following day and handed the car back running smoothly.
123456Fault78
Injector #6 had no electrical resistance, an internal fault. A full set of genuine Bosch injectors went in.
Read the job file for the Holden VF Commodore Calais V8
Red Holden Barina in a driveway with the bonnet open

Holden Barina

Reported
Engine light on, misfiring and spluttering.
Tested
Misfire diagnosis.
Found
The rocker cover gasket was leaking oil into the spark plug wells, contaminating the spark plugs and ignition coils.
Done
Parts sourced and the repair finished on the same day.
Oil fouledNew plug
The rocker cover gasket was leaking oil into the spark plug wells, soaking the plugs and the ignition coils around them.
Read the job file for the Holden Barina
Blue Toyota Corolla hatch parked in a driveway

Toyota Corolla hatch

Reported
Engine warning light on.
Tested
Diagnostic testing at the vehicle.
Found
The oxygen (O2) sensor was not reading correctly, which was triggering the warning light.
Done
Diagnosed on the spot, with the right part organised to keep downtime short.
O2 sensorExhaust flow
The oxygen sensor sits in the exhaust stream. On this Corolla it was not reading correctly, and that was what set the engine light off.
Read the job file for the Toyota Corolla hatch

Services done at the driveway

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