Viktor G Automotive
toyota

2007-2021 Toyota Tundra Engine Coolant Drain And Fill Instructions

By Viktor G · Certified Master Technician

Drain and refill engine coolant on a 2007-2021 Toyota Tundra 5.7L, including block drain and proper bleeding procedure to avoid air locks.

Skill Level: Beginner

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Parts Needed

Tools Needed

Tips & Tricks

  • Make sure the engine is cold before opening the radiator cap to avoid burns.
  • Draining only the passenger side block drain is sufficient; the opposite side yields virtually nothing.
  • Pour coolant in slowly and patiently to avoid creating an air lock.
  • Bleed the system by revving the engine up and down with the heat set to max hot until hot air blows at idle.
  • You know the system is fully bled when the truck idles for about a minute without throttle input and still blows hot air from the vents.
  • Overfill the coolant reservoir slightly above the full mark when hot, because the full mark is calibrated for cold coolant and it will suck some back as it cools.

Torque Specs

FastenerSpec
Wheel lug nuts97 ft-lbs