P0021 Diagnostic Trouble Code Discussion for January 2012
Camshaft Position 'A' Timing Over-Advanced / System Performance (Bank 2)
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0021
| Help Request | Posted | |
| 1999 BMW 740iL 4.4L MIL Lamp on P0021: Intake camshaft position - timing over-advanced bank 2. Hello, vehicle driven to shop, horrible rattling from timing. Removed valve covers and could see guides destroyed. When I removed lower timing cover, chain had so much slack it drooped completely off of lower sprocket. Replaced lower chain and all guides, rail... |
January 10, 2012 |
