YotaTech Forums

Toyota Tacoma: How to Replace Radiator

Replacing a faulty radiator on the Toyota Tacoma ensures its engine stays cool and healthy. Read on to learn how to do it yourself.

By Bassem Girgis - February 17, 2016

This article applies to the Toyota Tacoma (1996-2015).

The radiator on the Toyota Tacoma is designed to keep your engine cool. The coolant in it goes through the engine to keep it running at an optimal temperature, then it goes through the radiator to cool down. Sometimes, the radiator could go bad, which could result in the engine overheating. Replacing the radiator is a time consuming process, from draining the coolant in it to removing all the components around it; however, if you have the time, the process could easily be done by most people. Read on if you're ready to learn how to replace the radiator on the Toyota Tacoma.

Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
Figure 1. Radiator.
Toyota Tacoma How to Replace Radiator

Materials Needed

  • Drain pan
  • Coolant
  • Socket with extension
  • Flat head screwdriver
  • Pliers

Step 1 – Drain radiator

Place the drain pan under the radiator's petcock on the bottom of the radiator, then turn the valve counterclockwise with your hand. Open the radiator's cap on top of the radiator to let it breathe so it drains faster.

Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
Figure 2. Drain radiator.

Step 2 – Remove hoses

Remove the radiator hoses. Remove the top hoses by sliding their clamps backwards, then pulling them off. Then remove the lower hoses by doing the same method. Remove the transmission line from the radiator as well.

  • Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
    Figure 3. Remove all hoses attached.
  • Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
    Figure 4. Remove all hoses attached.
  • Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
    Figure 5. Remove all hoses attached.

Step 3 – Remove radiator

The radiator is held in place by four bolts. Two you can access from the top, and two you can access through the bumper with an extension to your socket. Remove the four bolts, unclamp the fan shroud from the radiator, then pull the radiator straight up.

  • Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
    Figure 6. Top bolt.
  • Toyota tacoma tundra 4runner v6 radiator replacement DIY how to
    Figure 7. Bottom bolt.

Step 4 – Install new radiator

Installation is the reverse of removal.

  • Install the radiator in place, then clamp the fan shroud in place.
  • Tighten the four bolts holding the radiator in place.
  • Connect the lower and top radiator hoses, then slide the clamps to secure them.
  • Fill the radiator with coolant, and with the cap off, start the truck and let it idle for about 15 minutes. Refill as necessary.

Featured Video: Tacoma Radiator Replacement

Related Discussions