Automotive Flow Chart

Comprehensive Mechanical Engine Diagnostic Flowchart

A systematic approach to mechanical engine testing, covering compression, oil pressure, and vacuum tests to assess overall engine health and identify potential issues

flowchart TD
A[Mechanical Engine Test] --> B[Initial Test]
B -->|Compression Test| C[Test All Cylinders]
B -->|Oil Pressure Test| D[Check Pressure Hot/Cold]
B -->|Vacuum Test| E[Check Vacuum Reading]

    C -->|Even/Good| C1[Engine Good]
    C -->|Low Single| C2[Check Valve/Rings]
    C -->|Low All| C3[Check Timing]
    C2 -->|Leak Found| C4[Repair Component]
    C3 -->|Off| C5[Repair Timing]

    D -->|Normal| D1[Oil System Good]
    D -->|Low Hot| D2[Check Bearings]
    D -->|Low Cold| D3[Check Oil Pump]
    D2 -->|Worn| D4[Engine Rebuild]
    D3 -->|Failed| D5[Replace Pump]

    E -->|Normal| E1[Engine Sealing Good]
    E -->|Low/Fluctuating| E2[Check Valve Sealing]
    E -->|Very Low| E3[Check Head Gasket]
    E2 -->|Leaking| E4[Valve Job Required]
    E3 -->|Failed| E5[Replace Head Gasket]