Battery Management Means Knowing How It Ages
The battery may be fully charged, but you also need to measure how low the voltages go while the engine is cranking.
Belt Service For Hybrid and Stop/Start Systems
Knowing how to “force start” a hybrid vehicle can be helpful if you are trying to diagnose a noise problem that involves the accessory belt drive system.
Deciphering Engine Misfire Codes
When the fuel/air mixture ignites, many factors must be met to pass a misfire monitor.
Ignition System Do’s and Don’ts
Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.
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From the March 2024 Issue
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Air Filters and Fuel Trims
Modern engines rely on precise airflow and oxygen sensor data for optimal performance.
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