Timing Chain Wear: Since the 3.5L EcoBoost is turbocharged, the oil is under extreme stress. Average repair cost is $7,500 at 93,000 miles. Worn-out oil can damage the chain, guides and tensioner. The links move on the toothed sprockets which are located on the ends of the crankshaft and camshaft and are responsible for opening and closing valves in the cylinder head and moving pistons and connecting rods in the combustion chamber. We see many Ford modular engines with broken timing chain guides. Over time, an engine’s timing chain stretches, causing the engine to run poorly. - Clayton, NC, USA. The good news is that those parts are inexpensive. Timing Chain Problems in the 3.5 EcoBoost Engine If a driver doesn't maintain scheduled maintenance with their Ford, in particular regular oil changes, then the timing chain is going to be susceptible to some excessive wear and tear. Even with the twin turbo engine having an impressive three timing chains, three chain tensioners, four chain guides, four camshafts, and 24 front cover bolts - at least the front cover area is rather open and easily accessible on the F150. Ford F-150/F-250: How to Replace Your Timing Chain. If you don’t maintain your 3.5 turbo engine, the timing chain stretch and sludge buildup can cost you several thousand dollars for the timing chain, tensioner, and camshaft replacement. Sounds like timing chain rattle or phasers. - Are the timing chains still an issue? If the driver pushes it past the recommended oil change interval, the first item to show the abuse is usually the timing chain. 6TH Generation F150 - 2004 to 2008 F150 Trucks. ... A forum community dedicated to Ford F150 owners and enthusiasts. I know early on it was an issue on the 3.5L Ecoboost, but I don't see many posts about the timing chains anymore. Changing the timing chain on a 3.5L Ecoboost isn't nearly as bad as you might think. The bad news is that labor at a shop isn't. Learn how to do it yourself and save a lot of money in the process. The timing chain is kept tight by force from the hydraulic tensioners. I have a 2016 (Gen 1) Ecoboost and the truck is flawless. Get a free detailed estimate for a repair in your area. The 2013 Ford F-150 has 3 problems reported for grinding noise from timing chain on start up. ... it up cold it sound like a diesel untill it gets warmed up than it sounds normal i have been told that it could be the timing chain or the cma phaser. Ford 3.5 Ecoboost engine problems — Turbo Wastegate Noise and failure. ... We plan on taking the vehicle back to the dealership but would like for Ford to assess this problem as it seems to be beyond the dealership's capabilities to fix the issue. The first symptom is usually a rattle on the start up. Even though the timing chain itself will probably outlast the rest of your truck, the guides and tensioners are less reliable. The problem of broken guides on the timing-chain. In extreme cases, the chain can break and the engine won't run at all. problem # 15. F150 Help Zone Problems, Complaints & Solutions. 2015 - 2020 Ford F150 - Are timing chains still an issue? Add Complaint. Because the timing chains are so long, they are supported by plastic guides. The Ford 3.5 Ecoboost engine uses a turbocharger with an internal wastegate. The timing chain is comprised of a series of links in the chain – similar to those found on a bicycle chain. A Ford F 150 Timing Chain Tensioner Replacement costs between $964 and $1,204 on average. Ford has been producing the Ford F-150 for decades. However, even the F-150’s durable engine is not immune to wear and tear. The contact owns a 2019 Ford F-150. 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