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2. Tell-tale (automotive) - Wikipedia

   en.wikipedia.org/wiki/Tell-tale_(automotive)

   The oil pressure idiot light lights when engine oil pressure drops below a predetermined level. The light normally appears when the vehicle ignition is turned on, but the engine is not running, as it detects no oil pressure due to the oil pump not operating (the oil pump is powered off the crankshaft, so only operates when the engine is running).

3. List of vehicle instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_vehicle_instruments

   Oil pressure gauge; Coolant Temperature gauge; Battery/Charging system lamp; Low oil pressure lamp; Airbag lamp; Coolant overheat lamp; Hand-brake lamp; Door ajar lamp; High beam lamp; On-board diagnosis indicator/Check engine lamp; Fuel gauge; Low fuel lamp; Hand brake indicator; Turn light; Engine service indicator; Seat belt indicator

4. Oil pressure - Wikipedia

   en.wikipedia.org/wiki/Oil_pressure

   Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines. [1] With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings ...

5. Oil pump (internal combustion engine) - Wikipedia

   en.wikipedia.org/wiki/Oil_pump_(internal...

   The oil pressure at the pump outlet, which is what opens the pressure relief valve, is simply the resistance to flow caused by the bearing clearances and restrictions. The oil pressure gauge or warning lamp reflects the pressure at the specific point where its sensor is located within the pressurized system.

6. Coolant pump - Wikipedia

   en.wikipedia.org/wiki/Coolant_pump

   Common applications of coolant pumps are: Coolant pump or water pump, found in most modern internal combustion engine applications such as most fossil fuel powered vehicles; Coolant pumps, found in pressurized water reactors, a type of light water reactor used in the majority of Western world nuclear power plants

7. OBD-II PIDs - Wikipedia

   en.wikipedia.org/wiki/OBD-II_PIDs

   OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.

8. Service (motor vehicle) - Wikipedia

   en.wikipedia.org/wiki/Service_(motor_vehicle)

   A motor vehicle service or tune-up is a series of maintenance procedures carried out at a set time interval or after the vehicle has traveled a certain distance. The service intervals are specified by the vehicle manufacturer in a service schedule and some modern cars display the due date for the next service electronically on the instrument panel.

9. Wax thermostatic element - Wikipedia

   en.wikipedia.org/wiki/Wax_thermostatic_element

   As the boiling point of water increases with increasing pressure, these pressurised systems could run at a higher temperature without boiling. This increased both the working temperature of the engine, thus its efficiency, and also the heat capacity of the coolant by volume, allowing smaller cooling systems that required less pump power. [6]