Ford GT

With neglected oil changes or wrong oil viscosity, the timing chain on the 5.0 Coyote S197 can jump from tensioner failure — with subsequent valve-piston contact.

Symptoms: Rattling from the timing drive, rough running, check engine light, in extreme cases engine failure

Early Coyote engines (2011–2014) show bearing problems under aggressive use or with delayed oil changes. Metallic ticking on a warm start is an early indicator of bearing wear.

Symptoms: Metallic ticking at operating temperature, oil pressure fluctuations, knocking from the engine block.

The Coyote 5.0 V8 from 2011 is known for head gasket failures, especially after overheating events. Engine overtemperature from cooling system problems leads to warping of the aluminium head.

Symptoms: White smoke from exhaust; oil level rising with coolant mixed in (mayonnaise effect at oil filler cap); coolant loss without visible external leak.

The variable cam phaser (Ti-VCT) produces a characteristic metallic ticking when the control solenoids are faulty. Faults P0010–P0013 are typical. Often triggered by contaminated oil.

Symptoms: Metallic ticking on cold start or at idle; rough idle; power loss; check engine light.

Some Gen1 Coyote S197 units show increased oil consumption from faulty piston rings or poor assembly quality. Ford has issued TSB measures (PCM reprogramming).

Symptoms: Oil level drops between changes, bluish smoke under acceleration or on cold start

On the third Coyote generation, increased oil consumption from faulty PCV valves occurred. Ford responded with TSBs for PCV replacement, ECU reprogramming, and oil scraper ring retrofitting.

Symptoms: Oil consumption above 0.5 l/1,000 km, blue exhaust, deep ticking at operating temperature.

On the S197 (especially the V6 4.0L), the thermostat housing cover can crack and lose coolant. Leaking coolant hoses and corroded connections are also common on older examples. Overheating is a risk without timely inspection.

The formed auxiliary push rod in the folding mechanism tears off or breaks out, potentially causing irreparable damage to the entire hood frame. Frame replacement costs approx. €6,000.

The glass pane permanently separates from the hood fabric. According to specialists a permanent re-bond is not possible. The hood must be replaced entirely.

The S197's standard braking system is clearly undersized for spirited driving. Vehicles without the optional Brembo package show reduced deceleration (fade) after just a few hard stops.

The S197 Mustang's solid rear axle is known for wheel hop during acceleration and thumping noises from the rear. Soft bushings, the Panhard rod and anti-roll bar connections wear early.

The S197 Mustang never came to Germany officially. US import vehicles often lack sufficient underbody corrosion protection for European winter conditions. Frame, fasteners and cavities rust severely without additional treatment.

The S197's front axle geometry changes through wear on dampers, bushings and lower control arm bearings. In European road use, uneven tyre wear and tracking problems appear earlier than expected from US use.

Seals on the hood mechanism hydraulic cylinders become brittle and allow hydraulic fluid to leak. Fluid drips onto seat belts and trim, and the hood closes slowly or incompletely.

Water drain hoses in the hood well block up with leaves and debris. Water backs up and runs into the boot, potentially flooding electronics and the spare wheel well.