glowplug

Engine warming element

A glowplug is a heating element in diesel engines that warms the combustion chamber to help start the engine in cold conditions.

Unlike gasoline engines that use spark plugs, diesels rely on compression heat to ignite fuel—glowplugs provide supplemental heat when the engine block is too cold for reliable ignition.

Wait for the glowplug light to go off before cranking.

ignition

preheating

Initial temperature raising

combustionExothermic reaction with oxygen
sparkTiny fiery particle
flameBurning gas made visible

ignition · kindle · coil · resistance · filament · ceramic · controller · relay · timer · voltage

diesel

preheating

Initial temperature raising

compressionForcing into smaller space
combustionExothermic reaction with oxygen
cylinderCircular-based solid form

injector · turbocharger · powerstroke · biodiesel · emissions · particulate · soot · torque · efficiency · lubricity

engine

cylinder

Circular-based solid form

pistonReciprocating cylinder component
crankshaftRotating engine shaft
crankingRotating by handle

flywheel · solenoid · battery · alternator · turnover · compression · valve · manifold

maintenance

replacement

What takes another's place

diagnosticTest to identify problems
multimeterCombined electrical measuring device
socketHollow receiving cavity

thread · wear · lifespan · OBD · mechanic

Opposites

ignition method

glowplugspark plug

Electrical ignition component

ignition coil · distributor · cold start

Family

glow, plug, glows, glowed, glowing, plugs, plugged, plugging, unplug

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Concrete · Rated G