Routine 219 - Exhaust Smoke
NOTE:
White smoke is normal during warm-up.
ROUTINE 219 - EXHAUST SMOKE
| SYSTEM & Component(s) | GO TO: |
|---|---|
| BLACK SMOKE (RICH MIXTURE): Air Cleaner Element (Restricted), Fuel Pressure Regulator Injectors, EEC Components | Perform a visual inspection, See SYSTEM/COMP TESTS , see TESTS W/CODES |
| BLUE SMOKE (BURNING OIL): PCV Valve, Valve Guides/Stems/Seals, Oil Drain Passages in Head Rings (not seated, seized, gummed up, worn), Cylinder Bores (scuffed) | See BASIC TESTING , see engine mechanical condition |
| WHITE SMOKE (COOLANT IN COMBUSTION): Thermactor Vacuum Delay Valve (restricted), EGR Cooler, Intake Manifold (cracked/porous), Cylinder Head/Gasket (Leaks), Block (cracked/porous) | See I - SYSTEM/COMP TEST |