2020 FORD FOCUS

Typical onset: 40,000-80,000 mi

Symptoms: Transmission slipping or shuddering during shifts, Overheating transmission warnings on dash, Burnt transmission fluid smell, Loss of forward gears after highway driving

Fix: Replace oil cooler, flush contaminated fluid, inspect clutch packs for damage. If clutches are burnt, you're looking at a full rebuild or replacement. Labor: 4-6 hours for cooler only, 12-18 hours if clutches need work.

Estimated cost: $1,200-3,500

Typical onset: 60,000-100,000 mi

Symptoms: Rattling noise from timing cover on cold starts, Check engine light with cam/crank correlation codes, Metal shavings in oil during changes, Sudden loss of power or no-start condition

Fix: Ford's oil-bathed timing belt disintegrates, contaminates engine. Requires belt replacement, oil system flush, sometimes valve/piston damage repair. If caught early: belt, tensioners, seals, multiple oil changes. If grenaded: cylinder head work or full rebuild. Labor: 6-8 hours preventive, 20+ hours if internal damage.

Estimated cost: $1,800-8,000

Typical onset: 50,000-90,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Overheating episodes, Milky oil on dipstick or cap

Fix: Head develops cracks between cylinders or into coolant passages. Requires head removal, resurface or replacement, new head gasket, timing components. Some engines need full replacement if block is compromised. Labor: 14-18 hours.

Estimated cost: $3,500-6,500

Typical onset: 30,000-70,000 mi

Symptoms: Limp mode or reduced power warnings, Excessive fuel consumption, Check engine light with DPF codes, Failed emissions testing

Fix: Short-trip driving prevents DPF regeneration. Requires forced regen, sometimes DPF removal and cleaning, fuel filter replacement. Chronic cases need new DPF and associated sensors. Labor: 2-3 hours for cleaning, 4-6 hours for replacement.

Estimated cost: $800-2,800

Typical onset: 70,000-120,000 mi

Symptoms: Rattling noise at idle in neutral, Vibration through clutch pedal, Difficulty shifting into first or reverse, Metallic clunking when releasing clutch

Fix: DMF springs wear out, causing chatter and eventual failure. Requires transmission removal, flywheel replacement, typically do clutch at same time. Labor: 6-8 hours.

Estimated cost: $1,400-2,200

Typical onset: 50,000-90,000 mi

Symptoms: Excessive vibration at idle, Clunking when shifting or accelerating, Engine visibly rocking in bay, Transmission shifter vibration

Fix: Hydraulic mounts fail, especially on three-cylinder models due to inherent imbalance. Replace affected mounts. Labor: 1.5-3 hours depending on which mount(s).

Estimated cost: $300-700

Typical onset: 40,000-80,000 mi

Symptoms: Hard starting when cold, Loss of power under load, Rough idle or misfires, Excessive black smoke

Fix: Diesel fuel systems sensitive to contamination. Clogged filter is easy fix, but contaminated injectors require replacement and system flush. Labor: 1 hour for filter, 4-6 hours for injector set.

Estimated cost: $150-2,500