2018 Ford F-150 engine problems

Filed Nov 5, 2026 · Engine · KY

I own a 2018 Ford truck with 77,000 miles. My truck has just experienced the widely recognized cam phaser failure—a known design defect that can cause a catastrophic engine failure to occur. Because this is a known manufacturing defect that Ford addressed with updated parts, TSB 23-2143 (or TSB 21-2119): These are the official internal Technical Service Bulletins that explicitly instruct Ford technicians on how to diagnose and repair the "cold start ticking/tapping or rattle type noise" on 2017–2020 F-150s with the 3.5L EcoBoost engine. It confirms the root cause is a worn Variable Cam Timing (VCT) unit and outlines the procedure to replace all four phasers. [1, 2] Customer Satisfaction Program 21N03: While the prorated financial assistance under this program expired in January 2023, the document itself remains critical. It serves as corporate documentation where Ford explicitly acknowledges a manufacturing/design flaw in the original cam phasers. Ford refuses to replace or reimburse this repair for any vehicle that is out of warranty. This is a known safety issue acknowledged by Ford and it should be addressed as a safety concern and recalled.

Filed Oct 28, 2026 · Engine, Transmission · KS

3 separate things recently happened. First the cam phasers went out, $4600. Second, only months later, the transmission went out, $7100. Third, it is throwing a p0420 and p0421 codes and the catalytic converts need replaced, at least $2000. All of this under 100k miles.

Filed Oct 19, 2026 · Engine · NY

Excessive oil consumption of approximately 1 qt every 1000 miles. I am filing the oil to the acceptable level monthly.

Filed Oct 16, 2026 · Engine · OH

The VVT Cam Phasers had a " consumer satisfaction program" that didnt include my VIN but included the year which was 2017-2021 3.5 ECOBOOST engine that mine has. The program has now expired and my truck has this exact issue. Not fixing the issue can cause engine failure. My truck has 47k miles on it. I called Ford back in XXX to file a compliant and nothing happened. I took my truck to Germain Ford in [XXX] to get a diagnostic done October 5,2026 and they said it was the VVT cam phasers. I called Ford XXX again about the issue and they said my VIN wasn't included and there was nothing they could do. This is absolutely absurd they are ignoring an ongoing issue and they refuse to do anything about this. I will continue to fight until something is done. This repair is costing me $4400. This is where you can help. Please make them do the right thing and reimburse me and I'm sure so many others their money. Thank you, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 9, 2026 · Engine · OH

The VVT Cam Phasers had a " consumer satisfaction program" that didnt include my VIN but included the year which was 2017-2021 3.5 ECOBOOST engine that mine has. The program has now expired and my truck has this exact issue. Not fixing the issue can cause engine failure. My truck has 47k miles on it. I called Ford back in April 2026 to file a compliant and nothing happened. I took my truck to Germain Ford in Beavercreek, Ohio to get a diagnostic done [XXX] and they said it was the VVT cam phasers. I called Ford 10/7/2026 again about the issue and they said my VIN wasn't included and there was nothing they could do. This is absolutely absurd they are ignoring an on going issue and they refuse to do anything about this.I will continue to fight until something is done.This repair is costing me $4400. This is where you can help. Please make them do the right thing and reimburse me and I'm sure so many others their money. Thank you, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 5, 2026 · Engine · NJ

My truck has the 3.5 ecoBoost twin turbo engine with the known cam phaser problem. Ford dealership replaced cam phasers 4 years ago and told they were putting in new designed cam phasers to prevent this from happening again. Last week, I changed the v v t cylinder because of a p0018 code, and found that the replacement was the old cam phasers prone to break again. Truck is just now out of warranty. And ford is doing nothing to help. Drivability is not the same has hesitation. So far, and I'm sure it's going to get worse. Check engine light just went on last week. This truck is at dealership now. My biggest problem with this situation is Ford. Dealer lied said they put in new cam phasers, which they put in old ones. I would have got an extended warranty if I knew they were the old cam phaser. Now, I will be out 3 to 5 thousand dollars because ford dealership lied to me. I have all paperwork. Service reports everything on the truck. The truck was babied. There's no reason why in 70000 miles catastrophic engine failure twice. Fixing the problem with the same problem. Parts is not a fix. It's a bandade until warranties are over. And let the people deal with it.

Filed Sep 24, 2026 · Engine, Transmission · NC

The vehicle is stalling/jerking and long idling. I was told that the transmission needs to be replaced. Less than 80,000 miles. 2018 Ford 150

Filed Sep 24, 2026 · Engine, Transmission · VA

2018 Ford F-150 Limited with the 3.5L EcoBoost engine. At approximately 60,000 miles the engine began making a rattling noise from the front of the engine on cold start, lasting several seconds. Over the last three months the noise has become progressively worse and now occurs at every cold start and lasts longer. The check engine light is currently illuminated. The vehicle has not stalled or lost power. A Ford dealer (Wynne Ford, Hampton, VA) diagnosed the condition on September 24, 2026 at 104,661 miles as cam phaser failure, requiring replacement of the variable camshaft timing (VCT) units and associated timing components. This matches Ford's Technical Service Bulletin 23-2143, which covers 2017-2020 F-150 vehicles with the 3.5L EcoBoost engine built on or before November 30, 2019. Ford previously issued Customer Satisfaction Program 21B10 and warranty extension 21N03 for this same defect on March 2, 2021, but 21N03 expressly excluded the F-150 Limited trim, and both programs have since expired. The dealer additionally reported that it has submitted multiple other cam phaser repairs on 2017-2020 3.5L EcoBoost vehicles for manufacturer assistance in the past two months, including vehicles newer and with lower mileage than mine, and that all were denied. The quoted repair is $5,414.11 at my expense. I am filing this report because cam phaser failure in these engines can progress to timing chain damage and engine failure, and because Ford has documented this defect since at least 2021 without issuing a recall. I contacted Ford (case CXH-09424982) and was denied any financial assistance.

Filed Sep 23, 2026 · Engine, Fuel system · TX

The 10-speed automatic transmission (10R80) shifts harshly and erratically, hangs in gear, and lost 2nd gear entirely, causing unpredictable acceleration and gear engagement in traffic. First reported to a Ford dealer on 6/8/2021 at 25,883 miles (dealer called it normal). Repairs: internal teardown at 32,920 miles (damaged clutch, input shaft, torque converter hub); valve body repair under TSB 24-2101 at 63,483 miles; CDF hub and friction plate failure diagnosed at 77,584 miles (TSB 25-2126 failure mode); loss of 2nd gear at 88,449 miles. Pre-repair scan 9/2026 shows P0732, P076F, P07F6 (incorrect gear ratio, gears 2, 7, 9). Transmission being rebuilt again 9/2026. The engine also suffered timing chain and crankshaft failures requiring a full engine replacement at 66,108 miles and another timing repair at 77,584 miles. Three catalytic converter failures. Nearly 200 days in Ford dealer service departments.

Filed Sep 6, 2026 · Engine · OH

Spray on liners of cylinder walls absorbing oil and allowing it to pass through