What are the symptoms of insufficient oil pressure at hot idle?
2 Answers
Insufficient oil pressure at hot idle can cause vehicle shaking. Related introduction: 1. Related principle: Check whether the fuel supply pressure and intake pressure sensor are normal. If the fuel pump supply pressure is abnormal or the intake pressure sensor value is wrong and working poorly, it will cause vehicle shaking. Solution: Check the oil pressure and replace components if necessary. 2. Other possibilities: Due to mechanical wear, improper assembly or other faults, it may cause the oil pressure to be too low or no pressure. Diesel engines generally have a pressure regulating valve that can adjust the oil pressure.
When idling a hot car, if the oil pressure is insufficient, the most obvious sign is the red oil warning light on the dashboard. At the same time, the engine noise becomes particularly loud, resembling metallic clattering or hissing friction sounds. The car may also shake irregularly, with the tachometer jumping around erratically. Sometimes, blue smoke comes out of the exhaust pipe, or the smell of burning oil wafts inside. Continuing to idle under these conditions can easily lead to engine overheating or excessive bearing wear, and it won't be long before the engine is ruined. The lesson I've learned from experience is to pull over and turn off the engine immediately if the light comes on or there are abnormal noises, rather than waiting for a major breakdown before seeking repairs.
