2019 GMC Acadia
Mileage
90,568
Service Date
1/31/2025
Services Performed
- Inspect for cause of check engine light. Light is on with three failure codes. Code p0138 High sensor voltage Sensor 2, P0420 catalyst system low efficiency, and code p2271 oxygen sensor signal stuck Rich Sensor 2. Road test and monitor sensors and fuel trims. Bank 1 sensor 2 is indeed erratic. Check for exhaust leaks. Found gasket at rear of bank 1 flex pipe leaking. This leak could interfere with bank 1 sensor 2 readings. Need to replace this gasket and eliminate exhaust leak possibility as a false positive. If exhaust leak is not creating a false positive, then Catalyst will be required. Road test again after repairing exhaust. Code P0420 and p0138 are fixed. Code p2271 returned. Inspect sensor. This sensor has recently been replaced however it is an aftermarket design. Install factory sensor and clear codes. Road test and recheck for failure codes. P2271 code did not return.
- EXHAUST PIPE GASKET – Remove & Replace
- Every vehicle serviced has a pre-work and post work checklist performed to ensure quality service.
- This labor is to input the necessary information about your car into our computer system. We use this information to repair and order parts. This is only needed once when we first see your car.
- TP: _35___, WT:__140__, DPT:_19___, WL:__no___Tire Size:___2356518______
- Loaner
- Loaner Car Admin Fee
Kathie C. gave our service a 5 star review on 2/2/2025
