2019 TOYOTA TUNDRA

Symptoms: No-start or hard-start conditions, especially when tank is below half, Engine stumbles or dies at highway speed, Check engine light with fuel system pressure codes P0087/P0191

Fix: Covered under NHTSA recall 20V-133 and 21V-SKI if not already done. If outside recall window or aftermarket pump already installed, expect 2.5-3.5 hours drop-tank labor plus pump module. Many owners don't know recall was performed—verify history before buying.

Estimated cost: $600-1,200

Typical onset: 70,000-140,000 mi

Symptoms: ATF spots on driveway, usually near front of truck, Transmission running hot (230°F+) under load, Pink fluid residue around radiator side tanks or hard lines to cooler

Fix: The auxiliary cooler lines and internal-to-radiator cooler both fail. Hard lines corrode at crimps; rubber sections crack. Often find both the frame-mounted auxiliary cooler leaking AND the in-radiator unit seeping. Plan on 3-4 hours to replace both cooler circuits, flush system, refill with WS fluid. Don't skip the aux cooler—it's cheap insurance.

Estimated cost: $800-1,400

Typical onset: 60,000-120,000 mi

Symptoms: Cold-start ticking from engine bay that fades when warm, Slight exhaust smell in cab on startup, Visible soot staining around manifold-to-head junction

Fix: The cast manifolds crack at the rear-most ports (cylinders 7-8 on driver side most common). Not a safety issue but annoying and can trigger O2 sensor codes eventually. Aftermarket headers or OEM manifolds both work; OEM is 6-8 hours per side due to access. Many owners live with it.

Estimated cost: $1,200-2,200

Typical onset: 80,000-150,000 mi

Symptoms: Howling or whirring from rear end that changes with speed, not throttle, Gear oil drip at pinion seal or axle tube ends, Vibration at 65-75 mph that feels like bad U-joint but isn't

Fix: The pinion bearing preload tends to loosen over time, especially on trucks that tow or run oversized tires. Axle seals leak when hubs wear. A pinion seal is 2 hours; full pinion bearing replacement with setup is 4-6 hours and requires shims/setup tools. If noisy, don't wait—collateral damage gets expensive fast.

Estimated cost: $600-1,800

Typical onset: 90,000-140,000 mi

Symptoms: Power steering fluid weeping from rack boots, Groaning or whining when turning at low speed, Steering feel becomes notchy or sticky at center

Fix: Rack seal failure, especially driver-side inner tie rod seal. Rebuilt racks are hit-or-miss; OEM Toyota rack is reliable but pricey. Budget 3.5-4.5 hours for R&R, alignment included. There was a steering assist recall (20V-SKI) for software—verify it's done, but it doesn't fix leaking seals.

Estimated cost: $1,400-2,200

Typical onset: 50,000-100,000 mi

Symptoms: Rapid clicking or rattling from engine bay on cold start, lasts 30-90 seconds, Check engine light P0410 (secondary air system), No performance impact, emissions test failure in strict states

Fix: The air injection pump or one-way valves fail. Pump is 2 hours; valves another 1.5 each. California and emissions-strict states care; elsewhere many delete or ignore. Not a breakdown risk but can complicate smog cert.

Estimated cost: $600-1,100