Vehicle: 2020 Chevy Silverado, 3500, 4WD V8-6.6L, Automatic Transmission/Transaxle
Mileage: 83,585 miles
Problem: The Silverado’s owner brought the truck to the shop because the malfunction indicator light (MIL) was on. There were no drivability complaints. The owner mentioned that it was a fleet truck, and it just had the oil changed while out of town.
Case Details: The technician connected a scan tool and found this diagnostic trouble code (DTC): P06DB - Engine Oil Pressure Control Solenoid Valve Control Circuit Low Voltage.
An ALLDATA Tech-Assist consultant suggested starting the diagnosis by making sure the "out of town" oil change was performed with the correct viscosity and a factory filter. If it was, then he should follow the DTC troubleshooting chart.
The technician checked the oil filter, and it was an aftermarket brand. He couldn’t tell if the oil viscosity was correct.
Confirmed Repair: The technician changed the oil using an OEM filter and the recommended brand and viscosity of oil. He cleared the DTC and then took the truck for a road test. There were no further issues. Easy Fix!
The ALLDATA Tech-Assist team fields cases like this every day. See how Tech-Assist can help your shop save time and money with on-call diagnostic support from ASE-certified Master Technicians. More Tech Tips
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