2006 Chevrolet Silverado
Mileage
230,270
Service Date
12/11/2020
Services Performed
- Diesel electronic engine control system performance tests: Check for stored fault codes. Monitor data stream parameters. Check fuel supply and delivery systems. Check glow plug/intake heater system as equipped. Perform pinpoint tests for listed fault codes. Codes: P0401 00 EGR flow insufficient. During road test mass air flow sensor (MAF) reporting high. Checked air filter, no concerns. Removed MAF and cleaned, cleared code and road tested. Code did not return. Recommend replacing EGR valve, EGR cooler, fuel rail pressure sensor and relief valve.
- Removed all parts necessary to access EGR cooler. Removed and replaced EGR valve and cooler. Removed and replaced rail pressure sensor and relief valve. Installed new gaskets. Re installed all parts. Road tested and checked for leaks. Noted during test drive that motor has intermittent squeak/ chirp coming from serpentine belt area, possible alternator bearing. Further diagnostics would be needed.
Rob B. gave our service a 5 star review on 12/15/2020
