Fault Diagnosis

Methods, measurements, decision trees, and evidence standards for accurate automotive diagnosis.

Coolant Leak Near the Water Pump? Diagnose Before Replacement

Neo

Coolant Leak Near the Water Pump? Diagnose Before Replacement

8 min readAug 26

How to Test a Car Battery with a Multimeter—Without Overreading the Number

Neo

How to Test a Car Battery with a Multimeter—Without Overreading the Number

4 min readJul 19

Cooling System Pressure Test: Safe Setup and Result Guide

Neo

Cooling System Pressure Test: Safe Setup and Result Guide

4 min readJul 4

Reading Spark Plugs: Compare Cylinders, Then Confirm the Cause

Neo

Reading Spark Plugs: Compare Cylinders, Then Confirm the Cause

4 min readApr 1

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