Engine: Troubleshoot Low Oil Pressure Light Flickering at Idle
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Low Oil Pressure Light Flickering At Idle[edit]
Typical symptoms:
- At idle, after warmup, the Low Oil Pressure Light flickers on/off to no discernable pattern
- A slight throttle application (~100RPM) makes the light go out
Case 1[edit]
Car: 1993 Dodge Stealth Twin Turbo
Mileage: 130,000 km
Specific Symptoms:
- Warm oil pressure 1-2 ticks off zero point on stock gauge
- Cold oil pressure 1-2 ticks below midway point on stock gage
- Problem only occured on warm days or after hard driving
Troubleshooting Steps Followed:
- Stock gage checked with motor not running to ensure zero point on gauge was zero
- Oil level verified as full
- Age/viscosity of oil unknown, as car was recently purchased
- Oil changed to Amsoil 20w50 full synthetic
- Warm idle oil pressure now 3-4 ticks off zero on stock gauge
- Cold idle oil pressure now 1-2 ticks above midpoint on stock gauge
- Low oil pressure light no longer flickering
