P0522 on Chevrolet: How to Diagnose & Fix
Engine Oil Pressure Sensor/Switch Low Voltage
1 Chevrolet model · 1 documented issue · $20-$120 repair
P0522 on Chevrolet by model: symptoms, diagnosis and fix
The engine oil pressure sensor/sending unit on LS truck V8s commonly fails or gets its screen clogged with sludge, sending the dash gauge bouncing, pegging high, dropping to zero, or reading falsely low—often with an 'oil pressure' warning even though actual pressure is fine.
Common Symptoms
- Oil pressure gauge erratic or bouncing
- Gauge pegged high or dropped to zero
- Low-oil-pressure warning with normal engine sound
How to Fix
Verify real oil pressure with a mechanical gauge first. If the gauge itself doesn't respond when the sensor is unplugged, the instrument-cluster stepper motor is the culprit instead. Don't replace the oil pump on a bad-reading gauge alone.
Sources for this issue (3)
P0522 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0522 mean on a Chevrolet?
P0522 stands for "Engine Oil Pressure Sensor/Switch Low Voltage." This code means the engine oil pressure sensor is sending a voltage that is lower than the normal operating range. Depending on how the sensor is wired, this can indicate either a wiring/sensor fault or genuinely low oil pressure. Because low oil pressure can quickly destroy an engine, the actual oil pressure should be verified with a mechanical gauge before assuming it's just an electrical issue. Watch for an oil warning light, ticking noises, or other signs of low pressure. On Chevrolet it is documented across 1 model: Silverado 1500.
What are the most common causes of P0522?
The most common causes of P0522 are: Faulty oil pressure sensor/switch, Short to ground or low voltage in the sensor wiring, Genuinely low oil pressure or low oil level, Corroded or damaged connector at the sensor, Poor electrical ground, Failing oil pump, Use of incorrect oil viscosity. The specific cause varies by vehicle.
How much does it cost to fix P0522 on a Chevrolet?
Published repair estimates on Chevrolet range from $20 to $120 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.