What Causes the Engine Oil Light to Illuminate When Braking?
1 Answers
There are two main reasons why the engine oil light illuminates when braking. First, insufficient engine oil: when braking causes the engine speed to drop, the oil pressure may fail to meet requirements, triggering the oil warning light. Second, the use of inferior engine oil with inadequate viscosity can also cause the oil light to activate during braking. It's crucial to determine whether this is a genuine or false alarm. Below are methods to differentiate between the two: 1. Genuine Alarm: Indicates actual low oil pressure below design specifications. Causes: Low oil level; Blockages in the lubrication circuit; Clogged oil pan filter screen; Substandard oil filter; Malfunctioning oil pump; Turbocharger pressure leakage; Incorrect oil viscosity selection (too low for manufacturer specifications) or water contamination in the oil. 2. False Alarm: Occurs despite normal oil pressure. Causes: Faulty oil pressure sensor; Wiring issues connected to the sensor.