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2. 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

3. MAP sensor - Wikipedia

   en.wikipedia.org/wiki/MAP_sensor

   Engine vacuum is the difference between the pressures in the intake manifold and ambient atmospheric pressure. Engine vacuum is a "gauge" pressure, since gauges by nature measure a pressure difference, not an absolute pressure. The engine fundamentally responds to air mass, not vacuum, and absolute pressure is necessary to calculate mass.

4. Category:Pressure gauges - Wikipedia

   en.wikipedia.org/wiki/Category:Pressure_gauges

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

5. Leak-down tester - Wikipedia

   en.wikipedia.org/wiki/Leak-down_tester

   Gauge meter faces can be numbered 0-100 or 100-0, indicating either 0% at full pressure or 100% at full pressure. There is no standard regarding the size of the restriction orifice for non-aviation use and that is what leads to differences in readings between leak-down testers generally available from different manufacturers.

6. Vapor lock - Wikipedia

   en.wikipedia.org/wiki/Vapor_lock

   Vapor lock is a problem caused by liquid fuel changing state to vapor while still in the fuel delivery system of gasoline-fueled internal combustion engines.This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling.

7. Air lock - Wikipedia

   en.wikipedia.org/wiki/Air_lock

   Air lock problems often occur when one is trying to recommission a system after it has been deliberately (for servicing) or accidentally emptied. Take, for example, a central heating system using a circulating pump to pump water through radiators. When filling such a system, air is trapped in the radiators. This air has to be vented using screw ...

8. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. A tire pressure gauge is an example of gauge pressure measurement; when it indicates zero, then the pressure it is measuring is the same as the ambient pressure.

9. Mercury pressure gauge - Wikipedia

   en.wikipedia.org/wiki/Mercury_pressure_gauge

   The parent of all mercury pressure gauges is the mercury barometer invented by Evangelista Torricelli in 1643. [15] An early engineering application of the mercury pressure gauge was to measure pressure in steam boilers during the age of steam. The first use on steam engines was by James Watt while developing the Watt steam engine between 1763 ...