Toyota Corolla Quiz
Diesel Engine

Glow Plugs

In this manual: Diesel Engine
Owner's Manual — 7Controls and Instruments — 49Engine Starting and Vehicle Operation — 5Actions if the Engine Does Not Start — 18Maintenance — 30Gasoline Engines - Repair Procedures Without Engine Removal from Vehicle — 17Gasoline Engines - Removal and Overhaul — 21Diesel Engine — 26Engine Electrical Equipment — 13Cooling and Heating Systems — 17Fuel and Exhaust Systems — 14Emission Control System — 19Manual transmission — 6Automatic transmission — 9Clutch and Axle Shafts — 11Brake System — 20Suspension and Steering — 24Body — 29Electrical System — 24Wiring Diagrams — 24
~1min read
010203040501310N·mlb·ft
Tightening torque found on this page

The only ignition-related components are the glow plugs, which are used to preheat the combustion mixture during initial start-up. Voltage is applied to the glow plugs when the ignition key is turned to the glow position. Supply voltage is at least 11.5 V, and the plugs heat to over 1000 °C within a few seconds. Heating time depends on the current engine temperature. If the engine does not start immediately, the circuit opens but closes again when the ignition key is turned to the glow position. Glow plugs cannot be repaired and must be replaced if damaged. Glow plugs are located in the cylinder head. Remove the nuts from the glow plugs and remove the remaining components. Disconnect the glow plug connectors and remove the plugs with an extension socket. When installing, tighten the glow plugs to 13 N·m.

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