P0349 on Ford
Camshaft Position Sensor A Circuit Intermittent (Bank 2)
P0349 on Ford vehicles indicates camshaft position sensor a circuit intermittent (bank 2). Au7o has documented this code across 1 Ford model — most commonly on Expedition. The camshaft position (CMP) sensor 'A' signal on bank 2 is intermittent, dropping in and out. The controller intermittently loses bank-2 cam position, causing random stalling, hard restarts, or intermittent rough running. Usually a loose connector, marginal sensor, or chafed wire. Typical repair costs on Ford range from $1,800 to $4,500, depending on the specific model and root cause.
Common Causes of P0349
- •Intermittent wiring/loose connector
- •Heat-sensitive or marginal CMP sensor
- •Variable air gap from loose mounting
- •Damaged/chafed harness
- •Reluctor wheel runout
P0349 on Ford by Model
Ford Expedition(1 issue)
- 5.4L 3V Triton Cam Phaser and Timing Chain Failure2004-2014
The 5.4L 3-valve (3V) Triton V8 in 2004-2014 Ford Expedition is notorious for cam phaser failures and timing chain stretch, representing one of the most common and expensive repairs on these trucks. The VCT (Variable Camshaft Timing) system uses oil pressure to actuate the cam phasers - when phasers wear out or chains stretch, the engine sets multiple camshaft correlation codes and rattles on startup. The factory oil pump also wears out at similar intervals, compounding the problem. Running low on oil or using the wrong viscosity dramatically accelerates failure. Left unrepaired, a failed phaser can cause a chain to jump timing, resulting in bent valves and catastrophic engine damage. Repair typically requires complete timing system replacement including both cam phasers, all four timing chains, guides, and tensioners - a 12-16 hour job.
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What does P0349 mean on Ford?▼
P0349 stands for "Camshaft Position Sensor A Circuit Intermittent (Bank 2)." The camshaft position (CMP) sensor 'A' signal on bank 2 is intermittent, dropping in and out. The controller intermittently loses bank-2 cam position, causing random stalling, hard restarts, or intermittent rough running. Usually a loose connector, marginal sensor, or chafed wire. On Ford specifically, this code is documented across 1 model.
What causes P0349 on Ford vehicles?▼
Common causes on Ford: Intermittent wiring/loose connector, Heat-sensitive or marginal CMP sensor, Variable air gap from loose mounting, Damaged/chafed harness, Reluctor wheel runout. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0349 on a Ford?▼
Repair costs on Ford range from $1,800 to $4,500, depending on the specific model and root cause.
Which Ford models have P0349 documented?▼
Au7o has documented P0349 on 1 Ford model: Expedition.