P0017 on Buick
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B
P0017 on Buick vehicles indicates crankshaft/camshaft position correlation - bank 1 sensor b. Au7o has documented this code across 2 Buick models — most commonly on Enclave, Encore. This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines.
Common Causes of P0017
- •Stretched or worn timing chain
- •Worn or failed timing chain tensioner or guides
- •Stuck or faulty variable valve timing (VVT) cam phaser
- •Faulty VVT oil control/solenoid valve
- •Low or dirty engine oil affecting phaser operation
- •Faulty camshaft or crankshaft position sensor
- •Timing chain jumped a tooth or incorrect timing after service
- •Damaged reluctor (tone) ring
P0017 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.
Buick Encore(1 issue)
- Exhaust Camshaft Reluctor Can Move Out of Phase (21-NA-268)2016-2022
GM Bulletin 21-NA-268 applies to 2016-2022 Buick Encore vehicles with the 1.4L LE2 engine. An exhaust-camshaft reluctor that moves out of phase can cause an extended crank or crank/no-start condition, illuminate the MIL and, in some cases, increase brake-pedal effort. The vacuum-pump drive lugs may also be damaged.
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View P0017 across all makes →Frequently Asked Questions
What does P0017 mean on Buick?▼
P0017 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B." This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. On Buick specifically, this code is documented across 2 models.
What causes P0017 on Buick vehicles?▼
Common causes on Buick: Stretched or worn timing chain, Worn or failed timing chain tensioner or guides, Stuck or faulty variable valve timing (VVT) cam phaser, Faulty VVT oil control/solenoid valve, Low or dirty engine oil affecting phaser operation. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0017 on a Buick?▼
Repair costs vary widely depending on the root cause and specific Buick model.
Which Buick models have P0017 documented?▼
Au7o has documented P0017 on 2 Buick models: Enclave, Encore.