2021–2024 FORD BRONCO SPORT

Typical onset: 30,000-80,000 mi

Symptoms: White smoke from exhaust on cold starts, Unexplained coolant loss with no external leaks, Misfires and rough idle that worsen over time, Milky oil on dipstick or oil cap, Check engine light with cylinder misfire codes

Fix: The open-deck block design allows cylinder head gaskets to fail or coolant to seep between block and liner. Coolant enters combustion chamber, hydrolock damages pistons/rods, scoring cylinders. Repair requires complete engine rebuild (pistons, rings, bearings, head gaskets, machine work) or short block replacement. 20-30 labor hours for rebuild, 12-18 for short block swap.

Estimated cost: $8,000-15,000

Typical onset: 40,000-90,000 mi

Symptoms: Transmission fluid in coolant reservoir (pink/red tint), Coolant in transmission pan (milky ATF), Harsh shifts or slipping gears, Overheating transmission or engine, Reduced power and limp mode

Fix: Internal oil cooler inside radiator fails, mixing ATF and coolant. Requires new radiator, transmission fluid flush (often multiple flushes), sometimes new transmission if contamination caused clutch pack damage. If caught early: radiator + flush = 4-6 hours. If trans damaged: add 10-15 hours for rebuild or replacement.

Estimated cost: $1,200-6,500

Typical onset: 20,000-60,000 mi

Symptoms: Hard starting or extended cranking, Intermittent stalling at idle or while driving, Loss of power under acceleration, Check engine light with fuel pressure/trim codes, Engine runs rough or won't start at all

Fix: Multiple recalls for fuel pump control module and fuel injection system. Failures range from faulty pump module (2-3 hours to replace, requires dropping tank) to injector failures requiring individual or full set replacement (3-5 hours). Some units need fuel filter and lines inspected for debris.

Estimated cost: $800-2,800

Typical onset: 25,000-70,000 mi

Symptoms: Transmission won't shift out of park, Stuck in one gear (usually 3rd or limp mode), Erratic shifting or delayed engagement, Check engine and transmission warning lights, Complete loss of forward gears

Fix: TCM software corruption or hardware failure. Two recalls issued. Sometimes reflash solves it (1 hour), but often needs module replacement and relearn procedure (2-3 hours). Verify it's not related to oil cooler contamination first.

Estimated cost: $150-1,800

Typical onset: 40,000-80,000 mi

Symptoms: Excessive vibration at idle in drive, Clunking when shifting from park to drive/reverse, Rocking sensation during acceleration or braking, Visible engine/trans movement under hood during throttle blips

Fix: Rubber mount deteriorates prematurely, especially on vehicles used off-road. Replacement is straightforward: support trans, unbolt old mount, install new. 1.5-2.5 hours depending on access.

Estimated cost: $300-600

Symptoms: Burning smell near front of vehicle when plugged in, Melted wiring or connector at block heater cord, Smoke from engine bay, Block heater doesn't warm engine

Fix: Recall issued for faulty block heater wiring that can short and cause fires. Dealer recall repair involves replacing heater element and wiring harness. If fire occurred, expect additional harness and component damage requiring 4-8 hours of diagnosis and repair.

Estimated cost: $0 (recall) or $800-2,000 if fire damage