2008 FORD EDGE

Typical onset: 80,000-150,000 mi

Symptoms: Coolant mixing with oil (milky dipstick), White smoke from exhaust, Overheating without external leaks, Catastrophic bearing failure if driven after mixing starts

Fix: The 3.5L Duratec has the water pump driven internally by the timing chain. When the pump seal fails, coolant enters the crankcase and destroys bearings within miles. Requires complete engine rebuild or replacement. Preventive replacement at 100k involves 8-10 hours labor (timing cover removal, chains, pump). If caught late, you're looking at short block or used engine swap at 15-20 hours.

Estimated cost: $1,200-2,000 preventive; $4,500-7,000 rebuild/replacement

Typical onset: 60,000-120,000 mi

Symptoms: Fluid puddle on driver side of transmission, Burning smell when hot, Whining or grinding from front differential area, AWD malfunction light if severely damaged

Fix: The PTU hangs off the transmission and Ford never scheduled fluid changes for it. Seals leak, fluid runs low, unit overheats and grenades internally. Catch it early with a seal replacement (2-3 hours). If the unit is damaged, replacement PTU is 4-5 hours labor. Always change fluid every 30k on these.

Estimated cost: $300-600 seal replacement; $1,200-1,800 PTU replacement

Typical onset: 100,000-150,000 mi

Symptoms: Transmission slipping or erratic shifts, Milky transmission fluid (coolant contamination), Coolant level dropping without external leaks, Engine overheating in some cases

Fix: The cooler is inside the radiator and when it fails, coolant and ATF mix — killing the transmission. Requires radiator replacement AND complete transmission flush or rebuild depending on how long it ran contaminated. If caught immediately, 6-8 hours for radiator and multiple fluid flushes. If transmission is damaged, add 12-15 hours for rebuild.

Estimated cost: $800-1,200 if caught early; $2,500-4,000 with transmission damage

Typical onset: 70,000-110,000 mi

Symptoms: Clunk when shifting from Park to Drive/Reverse, Vibration at idle in gear, Visible engine movement when revving in Park

Fix: The rear transmission mount and upper engine mounts fail predictably. Rear trans mount is 1.5 hours, upper mounts are 2-3 hours depending on which side. Do them all at once when you're in there.

Estimated cost: $400-700 for all mounts

Typical onset: 90,000-140,000 mi

Symptoms: Hard start or extended crank time, Stalling when fuel tank below 1/4, Intermittent dying at idle or under load, Fuel gauge reading erratically

Fix: The fuel pump module assembly tends to fail, sometimes just the sender, sometimes the pump itself. Tank must be dropped. 3-4 hours labor for pump replacement. Some techs cut an access panel but that's sketchy for rust-belt vehicles.

Estimated cost: $600-1,000

Typical onset: 80,000-130,000 mi

Symptoms: Grinding or humming that increases with speed, ABS or traction control lights, Vibration through steering wheel, Play in wheel when lifted

Fix: Hub assemblies wear and there was an NHTSA recall for some units. Even post-recall, they still wear at typical intervals. 2 hours per side, 3-4 hours to do both fronts at once. Always replace in pairs if one fails over 100k.

Estimated cost: $400-700 for both fronts

Symptoms: Recall notice from Ford, Airbag light may or may not illuminate, No symptoms until deployment

Fix: Multiple recalls for Takata passenger and driver airbag inflators that can explode and send shrapnel into cabin. This is a safety-critical recall. Check VIN at Ford or NHTSA, get it replaced free at dealer. 1-2 hours per inflator.

Estimated cost: $0 (recall repair)