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2nd Gen Tundra: Burning oil smell or smoke from the engine bay after a drive, no puddle on the ground (5.7L)

Checks, in order

  1. Find the source before paying for anything
    Degrease the engine, drive it, and look with a light at the rear of each cylinder head where the cam housing meets the head, above the exhaust manifold. A wet seam there is the cam tower. Oil only along the valve cover edge is a valve cover gasket, which is a far cheaper job.
    easy $ · under about $50
  2. Rule out the easy leaks
    Check the oil filter housing, the VVT-i oil lines and the valve cover gaskets. Any of them can drip onto the same manifold and copy the smell.
    easy $ · under about $50
  3. The repair
    Valve covers, timing cover and chains come off so the cam housings can be lifted and resealed with Toyota FIPG, usually both banks at once. Shops quote 7–8 hours or more; dealer estimates reported by owners run roughly $3,800–5,500, independent Toyota shops less. Some owners got goodwill help from Toyota while the truck was still young. There was never a recall.
    hard $$$ · shop-level job, $500+
  4. Living with a slow one
    A seep that costs a quart between oil changes is not an emergency; a leak that soaks the manifold is a fire and oxygen-sensor risk. Oil on the sensor harness near the manifold is a known cause of A/F sensor heater codes.
    easy $ · under about $50

Applies to: 2nd generation Tundra, 2007 to 2021, with the 5.7L 3UR-FE V8 (most trucks), the 4.6L 1UR-FE (2010–2019) and the 4.7L 2UZ-FE (2007–2009). Engine-specific items say which engine they apply to. Assumes a stock truck.

Tools and parts for these checks

Links below are Amazon affiliate links: as an Amazon Associate, toyotadata earns from qualifying purchases, at no extra cost to you. Confirm fitment for your exact truck before you order.

ITEMUSED FORBUY
UV leak detection kitPinpointing exactly where a leak startsShop on Amazon
Engine degreaserCleaning the area so the leak shows upShop on Amazon
Bluetooth OBD2 scanner with live dataReading and clearing codes and watching live sensor dataShop on Amazon

Go deeper

The same problem on other Toyotas

More 2nd Gen Tundra problems

All 10 2nd Gen Tundra symptoms in the interactive troubleshooter →

General guidance from owner experience. Confirm torque specs, fluid capacities and procedures in the factory service manual. Brakes, steering and anything structural: if in doubt, have a qualified shop inspect it before driving.