P0014 on Ford: How to Diagnose & Fix

Two distinct tick patterns affect 5.0L Coyote V8 in 2015-2023 Mustang depending on engine generation. Gen 2 Coyote (2015-2017): light tick at idle and on cold start, commonly attributed to valve lash / lifter operation; generally cosmetic and not associated with engine damage. Gen 3 Coyote (2018-2023): louder, more pronounced tick — same family but Ford changed to plasma transferred wire arc (PTWA) cylinder liners. The tick is increasingly linked to piston slap from clearance issues against the plasma liner, with some confirmed cases of cylinder wall scoring requiring engine replacement under warranty. Direct injection (added on Gen 3 alongside port injection) contributes a separate fainter HPFP tick that is normal. Distinguishing: Gen 2 tick stays constant warm; Gen 3 piston slap diminishes as engine warms but returns under load. Owner forums (Mustang6G, MPR Racing Engines) document the Gen 3 pattern extensively.

The 5.0L Coyote V8 can develop a ticking or rattling noise at startup, often from the cam phasers. This is similar to issues in the Mustang GT. The noise typically diminishes after the engine warms up but can indicate phaser wear.

The water pump on the 3.5L EcoBoost can seep or leak coolant. If the leak gets bad, coolant runs low and the engine can overheat. On the F-150 the pump is mounted outside the engine and driven by the belt. The transverse 3.5L EcoBoost uses an internal pump driven by the timing chain instead. A leak usually starts small, with coolant stains on the front of the engine near the pump. One Gen 2 F-150 Raptor owner on a forum saw fluid coming from the water pump area, with staining on the front of the block, at about 10,000 miles. In one technician's case, a 2017 F-150 XLT 3.5L was overheating, its cooling fans ran constantly and the degas (coolant) bottle was empty. A pressure test found the water pump leaking. These are individual owner and shop reports, not a count of how often the pump fails. Ford says its Motorcraft replacement pump is durability-tested to the equivalent of 10 years or 150,000 miles.

The first-generation 3.5L EcoBoost (the 2011-2016 engine generation) used in the 2015-2018 Ford Transit 350/350 HD with the twin-turbocharged V6 is known for premature timing chain stretch. The design uses one long primary chain driving two secondary cam chains, and the long primary chain stretches as the links wear individually, causing the chain to effectively grow longer. A stretched chain causes VCT timing correlation codes, cold-start rattling, rough idle, and eventual jumped timing. Ford moved F-150 and other trucks to a second-generation 3.5L EcoBoost with a dual primary chain system in 2017, but the Transit kept the first-generation engine with revised timing components. Transit vans used for commercial/fleet service with high-idle hours accumulate chain wear faster than typical passenger vehicles.

The 2nd-generation 3.5L EcoBoost V6 in 2018-2020 Ford Expedition (Gen 4) addressed the timing chain stretch issue of early-generation 3.5L EcoBoost engines (2011-2016) but introduced a new problem: VCT (Variable Camshaft Timing) unit wear that causes a distinctive ticking/tapping rattle on cold starts after a 6+ hour soak. The rattle typically lasts 2-5 seconds and comes from the top front of the engine. Ford issued TSB 23-2143 (superseding 22-2200) addressing the condition for 2018-2020 Expedition/Navigator built on or before November 30, 2019, recommending replacement of all four VCT units. The cam phasers become sticky when oil drains back overnight, then rattle until fresh oil pressure reaches them.

The 3.5L/3.7L Duratec V6 in first-generation Ford Edge commonly develops timing chain stretch and variable camshaft timing (VCT) phaser rattles between 80,000-120,000 miles. The engine uses two timing chains (one per cylinder bank) that can stretch over time, causing the VCT phasers to rattle loudly on cold starts as oil pressure builds. The rattle typically lasts 2-5 seconds on startup before oil pressure stabilizes. Left unaddressed, chain slack can cause timing to jump, resulting in rough running, poor fuel economy, and potential catastrophic engine damage if a chain breaks or a guide fails.

The 6.2L gas V8 in the F-350 develops cam phaser rattle on startup as the phaser locking pins wear. Additionally, the exhaust manifold studs break due to thermal cycling, causing an exhaust leak.

Owners of the 6.2L Boss V8 report a knock or tick right after a cold start. Owners often blame worn cam phasers. The noise usually fades as oil pressure builds and the engine warms, and some owners say it gets worse with mileage. Several things can make this sound on the 6.2L. Owners of the same engine also describe a start-up tick that lasts only until oil reaches the hydraulic valve lifters (lash adjusters). Some owners call that version harmless, and others disagree. Ford also issued a bulletin, TSB 10-25-7, for an engine tick on early 6.2L trucks, including 2011 F-250/F-350 Super Duty trucks built from January 18 to September 7, 2010. That tick came with misfire codes, and its cause was ignition coil or plug-wire installation, worn rocker shaft rollers, or damaged cam lobes. A cold-start noise is not proof of a phaser failure, so the cause needs to be diagnosed before parts are replaced.