P0016 on Buick
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A
P0016 on Buick vehicles indicates crankshaft/camshaft position correlation - bank 1 sensor a. Au7o has documented this code across 1 Buick model — most commonly on Enclave. P0016 means the engine computer found that the crankshaft and camshaft position sensors on Bank 1 (Sensor A) are not lining up the way they should — the timing 'correlation' between them is out of range. These two sensors tell the computer where the pistons and valves are so it can time fuel injection and spark precisely. When their signals don't agree within tolerance, the computer sets this code. It generally indicates an engine timing issue, which may be a worn timing chain, a sticking variable valve timing component, or a sensor problem, and can cause rough running, hard starting, or potential engine damage if ignored.
Common Causes of P0016
- •Stretched timing chain or worn timing components (guides/tensioner)
- •Faulty camshaft position sensor or crankshaft position sensor
- •Stuck or faulty variable valve timing (VVT/VCT) actuator or solenoid
- •Low or dirty engine oil affecting the VVT actuator
- •Clogged oil control valve or restricted oil passages
- •Timing chain/belt installed one tooth off after service
- •Damaged reluctor/tone ring on the crankshaft or camshaft
- •Wiring or connector faults at the position sensors
P0016 on Buick by Model
Buick Enclave(1 issue)
- Cylinder-Head Porosity Can Contaminate Engine Oil (PIP5674)2019
GM PIP5674 applies to 2019 Enclave vehicles with the 3.6L LFY engine. Internal porosity near an outer cylinder-head bolt area can allow coolant to contaminate the engine oil, producing a ticking noise, coolant loss, very dark or sticky oil and a check-engine light with cam/crank correlation codes even at low mileage.
Looking for P0016 on a different make?
View P0016 across all makes →Frequently Asked Questions
What does P0016 mean on Buick?▼
P0016 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A." P0016 means the engine computer found that the crankshaft and camshaft position sensors on Bank 1 (Sensor A) are not lining up the way they should — the timing 'correlation' between them is out of range. These two sensors tell the computer where the pistons and valves are so it can time fuel injection and spark precisely. When their signals don't agree within tolerance, the computer sets this code. It generally indicates an engine timing issue, which may be a worn timing chain, a sticking variable valve timing component, or a sensor problem, and can cause rough running, hard starting, or potential engine damage if ignored. On Buick specifically, this code is documented across 1 model.
What causes P0016 on Buick vehicles?▼
Common causes on Buick: Stretched timing chain or worn timing components (guides/tensioner), Faulty camshaft position sensor or crankshaft position sensor, Stuck or faulty variable valve timing (VVT/VCT) actuator or solenoid, Low or dirty engine oil affecting the VVT actuator, Clogged oil control valve or restricted oil passages. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0016 on a Buick?▼
Repair costs vary widely depending on the root cause and specific Buick model.
Which Buick models have P0016 documented?▼
Au7o has documented P0016 on 1 Buick model: Enclave.