P0346 on Ford
Camshaft Position Sensor A Circuit Range/Performance (Bank 2)
P0346 on Ford vehicles indicates camshaft position sensor a circuit range/performance (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 present but out of range or not correlating with the crankshaft (range/performance). Often from timing-chain stretch on bank 2, a damaged reluctor, or air-gap/wiring noise. Typical repair costs on Ford range from $1,800 to $4,500, depending on the specific model and root cause.
Common Causes of P0346
- •Stretched/worn timing chain on bank 2
- •Damaged cam reluctor/timing wheel
- •Degrading bank 2 CMP sensor
- •Air-gap or loose sensor
- •Intermittent wiring/electrical interference
P0346 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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View P0346 across all makes →Frequently Asked Questions
What does P0346 mean on Ford?▼
P0346 stands for "Camshaft Position Sensor A Circuit Range/Performance (Bank 2)." The camshaft position (CMP) sensor 'A' signal on bank 2 is present but out of range or not correlating with the crankshaft (range/performance). Often from timing-chain stretch on bank 2, a damaged reluctor, or air-gap/wiring noise. On Ford specifically, this code is documented across 1 model.
What causes P0346 on Ford vehicles?▼
Common causes on Ford: Stretched/worn timing chain on bank 2, Damaged cam reluctor/timing wheel, Degrading bank 2 CMP sensor, Air-gap or loose sensor, Intermittent wiring/electrical interference. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0346 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 P0346 documented?▼
Au7o has documented P0346 on 1 Ford model: Expedition.