2004 CHRYSLER CONCORDE

Typical onset: 80,000-150,000 mi

Symptoms: engine oil light flickering or staying on, knocking/ticking from valvetrain, sudden loss of oil pressure, complete engine seizure without warning, milky oil cap residue

Fix: The 2.7L has inadequate oil drainage from the heads and poor PCV design that causes sludge buildup, starving bearings and camshafts. Once knocking starts, it's too late—requires complete engine replacement or rebuild. 16-24 hours labor for used engine swap, 30-40 hours for full rebuild with machine work.

Estimated cost: $3,500-6,500

Typical onset: 90,000-130,000 mi

Symptoms: transmission slipping or delayed engagement, milky pink fluid in coolant reservoir, milky red fluid on dipstick, overheating transmission and engine simultaneously, sudden loss of forward gears

Fix: The cooler inside the radiator develops pinhole leaks, mixing coolant with ATF. Coolant in trans destroys clutch packs and seals within days. Requires radiator replacement, trans flush, often full transmission rebuild if driven after contamination. External cooler installation recommended. 12-20 hours labor depending on trans damage.

Estimated cost: $2,800-5,200

Typical onset: 100,000-140,000 mi

Symptoms: no overdrive/stuck in 3rd gear, harsh 2-3 or 3-4 shifts, check engine light with trans codes, delayed engagement when cold, slipping between gears on highway

Fix: The solenoid pack and overdrive clutches wear out from heat and contaminated fluid. Often misdiagnosed as needing full rebuild when solenoid pack replacement ($600-900 parts/labor) fixes it. If clutches are burnt, needs full rebuild. Drop pan, inspect clutch material in fluid first. 8-14 hours for rebuild.

Estimated cost: $600-3,200

Typical onset: 70,000-110,000 mi

Symptoms: heavy clunk when shifting from Park to Drive, engine rocking visible from driver seat on acceleration, vibration at idle that improves with RPM, transmission linkage feeling loose or imprecise

Fix: Hydraulic mounts fail internally, causing excessive drivetrain movement. Front mount is most common, but rear trans mount also collapses. Replace all three mounts at once to avoid comeback. 3-4 hours labor for all mounts.

Estimated cost: $450-750

Typical onset: 90,000-140,000 mi

Symptoms: coolant smell from engine bay, slow coolant loss with no visible leaks, rough idle when cold, minor misfire codes on multiple cylinders, coolant residue on lower intake plenum

Fix: The lower intake manifold gaskets deteriorate and leak coolant into the valley or externally. Can cause cylinder washing if ignored. Upper plenum removal required for access. 5-7 hours labor, straightforward job.

Estimated cost: $650-1,100

Typical onset: 80,000-120,000 mi

Symptoms: battery light flickering at idle, dimming headlights with accessories on, dead battery after overnight parking, voltage gauge reading low (under 13V running), whining noise from alternator pulley area

Fix: Alternators fail from heat and age, often the voltage regulator internally. Also common: parasitic draw from failing body control module or interior light circuits staying on. Test charging system first, then check for draws. Alternator replacement 1.5-2 hours labor.

Estimated cost: $350-650

Typical onset: 80,000-120,000 mi

Symptoms: clunking from front suspension over bumps, popping noise when turning steering wheel while stopped, steering not returning to center smoothly, uneven tire wear on front inside edges

Fix: The top strut mount bearings seize or break apart. Often misdiagnosed as needing full struts when just mounts are bad. Replace mounts and perform alignment. If struts are original, replace assembly together. 3-4 hours labor for both sides with alignment.

Estimated cost: $550-900