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AV-SCANNER / Service function guides / Engine and oil
This Auto Veteran guide covers the complete diagnostic procedure for an engine that stalls when hot, cold, or during a stop, starting with how the air, fuel, and ignition systems interact to keep an engine running. It is written for working mechanics and experienced DIY owners who already understand basic engine operation and can use a scan tool and multimeter safely. You will learn how to prepare the vehicle, reproduce the stall under controlled conditions, and systematically test the likely causes from intake leaks to crankshaft position sensors. By the end you will be able to confirm a repair with a road test and hand the vehicle back with confidence.
Guidance is general and covers many makes. Exact procedures and values vary by model, so confirm them in the factory service information for your vehicle.
Download all 12 sections as a branded PDF to use in the workshop.
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