Neglected Lexus LS430 Engine and Transmission Rebuild: Bringing it Back to Life!

Engine Installation and Preparations

• 🛠️ The engine is prepped and installed back into the neglected Lexus LS430, with attention paid to aligning engine mounts.
• 💡 Before engine installation, heater hoses and the power steering line were replaced due to age and cracking.
• ⚠️ The AC system was closed off during engine installation to prevent dust and debris from entering.
• 🔧 The engine computer (ECU) is noted as being conveniently located under the hood in the LS430, simplifying engine removal and installation.

Transmission Issues and Replacement

• 💥 The original transmission experienced a "thermal event", severely overheating the torque converter and a shaft, indicated by bluing.
• 💰 Toyota transmission parts are prohibitively expensive, making a full rebuild comparable in cost to replacing the unit.
• 📦 A remanufactured Toyota transmission was chosen as the solution, with the external case being original but internal components new.
• ⚠️ A warning is issued against using aftermarket rebuilt LS430 transmissions, recommending new or remanufactured units from Toyota.

LS430 Mechanical Nuances

• ⚙️ The LS430 transmission is praised for its design and DIY-friendliness, contrasting sharply with the LS460's complexity.
• 🚗 Drive shafts are sensitive; aftermarket replacements are discouraged due to vibration issues, and original parts are recommended.
• 💨 The exhaust system on the LS430 is best removed in one piece to avoid damage and frustration, even on rust-free Florida cars.
• 🔩 Torque converter bolts on the LS430 are easily accessible, unlike many other Lexus/Toyota models that require starter removal.

Final Steps and Confessions

• ✅ The engine is running, though smoky due to transmission fluid residue from the exhaust.
• 🚗 Driving the car is delayed due to expired license plates and the need for an emissions test.
• 🛋️ Future plans include addressing the interior, including seats and general cleanup, before discussing long-term car plans.
• 🔧 A confession is made about forgetting to tighten two bracket bolts on the exhaust, which were addressed a few days later.