2006 LEXUS RX 330

Typical onset: 90,000-150,000 mi

Symptoms: Check engine light with VVT codes (P0010, P0011, P0020, P0021), Rough idle, poor acceleration, oil consumption over 1 qt per 1,000 mi, Knocking or ticking from valve train, especially cold starts, Sudden catastrophic failure: seized engine, no oil pressure, no restart

Fix: This is Toyota's notorious oil sludge issue affecting 2004-2006 RX 330s inadequately maintained or driven short-trip. Once sludge clogs oil passages, VVT gears fail first, then bearings spin. If caught early (VVT codes only), engine flush and VVT gear replacement runs 6-8 hours labor. If bearings are scored or engine seized, you're looking at remanufactured long block or junkyard engine swap at 18-25 hours labor. Short block replacement is 20-24 hours.

Estimated cost: $6,500-12,000

Typical onset: 100,000-180,000 mi

Symptoms: Pink or red fluid pooling under vehicle, driver side near front wheel, Transmission slipping or delayed engagement if fluid level drops significantly, Visible wetness on transmission cooler lines where they connect to radiator

Fix: Steel cooler lines rust through where they attach to the radiator or at crimped fittings. Replace both lines as a set (they're cheap) plus fresh ATM fluid. If leak contaminated coolant or vice-versa, you may need radiator flush or full radiator replacement. Labor is 2-3 hours for lines only, 4-5 if radiator involved.

Estimated cost: $400-900

Typical onset: 80,000-130,000 mi

Symptoms: Clunk or thud when shifting from Park to Drive or Reverse, Excessive vibration at idle, especially with A/C on, Engine rocking visible under hood during acceleration or braking

Fix: Hydraulic front engine mount and rear transmission mount crack and leak fluid. Both should be replaced together to prevent imbalance. Front mount is 2 hours, rear is 1.5 hours; doing both at once saves time. OEM mounts last longer than cheap aftermarket.

Estimated cost: $600-1,100

Typical onset: 120,000-180,000 mi

Symptoms: Click or no sound when turning key, all dash lights normal, Intermittent no-start, works after sitting or wiggling key, Grinding noise during cranking (Bendix gear worn)

Fix: Denso starters on these are reliable but eventually wear out. Located under intake manifold on passenger side—accessing it requires removing throttle body and part of intake plenum. Labor is 3-4 hours due to tight access. Remanufactured starter is fine; OEM is overkill.

Estimated cost: $650-1,000

Typical onset: 90,000-140,000 mi

Symptoms: Clunking over bumps from front suspension, Wandering or vague steering feel, especially lane changes, Uneven or cupped tire wear on inside edges

Fix: Front lower control arm bushings crack and separate. Replace entire control arms as assemblies (bushings aren't sold separately and pressing is labor-intensive). Do both sides, align afterwards. 3-4 hours labor total including alignment.

Estimated cost: $700-1,200

Typical onset: Not mileage-driven, age/corrosion related

Symptoms: A/C blows warm, refrigerant low every season despite recharge, Oily residue on passenger floor or musty smell from vents, A/C compressor cycles on and off rapidly due to low pressure

Fix: Evaporator is behind the dash—entire dashboard removal required. This is a 10-12 hour job. Part is $200-300, but labor dominates cost. Many owners live with annual recharges ($150) rather than fix it. If doing it, replace expansion valve and receiver/drier at same time.

Estimated cost: $1,800-2,800