Similar issues....
2019 Raptor, 34k miles, all stock, always 91 octane gas w detergents, Full synthetic oil at 5k intervals.
Intermittent symptoms:
1) rough idle
2) hesitant acceleration
3) abnormal shifting.
No Check Engine Light
OBD outputs:
P0018 - crankshaft-to-camshaft position; Bank 2 Sensor A
P0021 - “A” camshaft position timing, over advanced (Bank 2)
Dealer was able to see the codes in the PCM memory without CEL. They were not able to find root cause. They cleaned camshaft and crank shaft position sensors.
They found the following “bulletin” and executed to it.
SSM 48423 - 2015-2020 Various Vehicles - Illuminated Malfunction Indicator
Lamp (MIL) With Variable Cam Timing (VCT) DTCs - Diagnostic Information Some 2015-2020 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK11 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
Results:
Rough idle has occurred once since then, roughly 100 miles. So issues doesn’t seem to be fixed. Disappointing.
Symptoms are so intermittent. Can’t trace it to temperature or run time. When symptoms are not present, truck drives flawlessly at all throttle inputs.
anyone have any ideas? High probability it’s VCT related.
If the cycled the VCT solenoids per the SSM and the issue got better, they are root cause. At that point the affected solenoids should be replaced since the cycle procedure did not resolve the issue. The solenoids are on external to the valve covers are are easy to access.