P0019 on GMC
Crankshaft/Camshaft Position Correlation - Bank 2 Sensor B
P0019 on GMC vehicles indicates crankshaft/camshaft position correlation - bank 2 sensor b. Au7o has documented this code across 1 GMC model — most commonly on Acadia. This code means the engine computer detected that the crankshaft and camshaft positions on bank 2 (sensor B, typically the exhaust camshaft) are out of their expected correlation — in other words, the cam and crank timing don't line up correctly. The computer compares the crankshaft and camshaft position sensor signals to verify valve timing, which is often controlled by a variable valve timing (VVT) actuator. A correlation error points to mistimed valve events, frequently from oil-flow or VVT issues, a stretched timing chain, or sensor faults. You may notice rough idle, reduced power, poor fuel economy, or a check-engine light, and ignoring it can risk engine damage.
Common Causes of P0019
- •Stretched or worn timing chain (and worn guides/tensioner)
- •Faulty variable valve timing (VVT) actuator/solenoid (Bank 2)
- •Low oil level or dirty/sludged oil restricting VVT flow
- •Faulty camshaft or crankshaft position sensor
- •Clogged VVT oil control valve screen
- •Damaged sensor wiring or connector
- •Jumped/misaligned timing during prior service
P0019 on GMC by Model
GMC Acadia(1 issue)
- High-Feature V6 Timing-Chain Correlation DTC Bulletin2007-2012
GM bulletin 10245795 documents timing-chain and guide service information for High Feature V6 engines that set camshaft-to-crankshaft correlation DTCs P0008, P0009, P0016, P0017, P0018 or P0019.
Looking for P0019 on a different make?
View P0019 across all makes →Frequently Asked Questions
What does P0019 mean on GMC?▼
P0019 stands for "Crankshaft/Camshaft Position Correlation - Bank 2 Sensor B." This code means the engine computer detected that the crankshaft and camshaft positions on bank 2 (sensor B, typically the exhaust camshaft) are out of their expected correlation — in other words, the cam and crank timing don't line up correctly. The computer compares the crankshaft and camshaft position sensor signals to verify valve timing, which is often controlled by a variable valve timing (VVT) actuator. A correlation error points to mistimed valve events, frequently from oil-flow or VVT issues, a stretched timing chain, or sensor faults. You may notice rough idle, reduced power, poor fuel economy, or a check-engine light, and ignoring it can risk engine damage. On GMC specifically, this code is documented across 1 model.
What causes P0019 on GMC vehicles?▼
Common causes on GMC: Stretched or worn timing chain (and worn guides/tensioner), Faulty variable valve timing (VVT) actuator/solenoid (Bank 2), Low oil level or dirty/sludged oil restricting VVT flow, Faulty camshaft or crankshaft position sensor, Clogged VVT oil control valve screen. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0019 on a GMC?▼
Repair costs vary widely depending on the root cause and specific GMC model.
Which GMC models have P0019 documented?▼
Au7o has documented P0019 on 1 GMC model: Acadia.