This Haynes repair and service manual, covers 2000-2006 Toyota Tundra and 2001-2007 Toyota Sequoia, 2WD and 4WD models.

These vehicles come equipped with V6 and V8 engines, coupled to either a manual or an automatic transmission.

This manual, like all DIY books published by Haynes, provides complete maintenance, service and repair information, including:

• Routine Maintenance
• Tune-up procedures
• Engine repair
• Air Conditioning
• Ignition
• Brakes
• Suspension and steering
• Electrical systems
• and more!

Book Excerpt

COOLING, HEATING AND AIR CONDITIONING SYSTEMS

THERMOSTAT | CHECK AND REPLACEMENT WARNING: Do not remove the radiator cap, coolant or thermostat until the engine has cooled completely. CHECK

1. Before proceeding, check the coolant level and the drivebelt tension (see Chapter 1) and then check the operation of the temperature gauge or temperature warning light circuit (see Chapter 12).
2. If the engine takes a long time to warm up, the thermostat is probably stuck open. Replace the thermostat.
3. If the engine runs hot, check the temperature of the upper radiator hose. If the hose isn't hot, the thermostat is probably stuck shut. Replace the thermostat.
4. If the upper radiator hose is hot, then the coolant is circulating and the thermostat is open. Refer to the Troubleshooting Section at the front of this manual for the cause of overheating.
5. If the engine has overheated, it might have leaking cylinder head gaskets, scuffed pistons and/or warped or cracked cylinder heads.
REPLACEMENT
(Refer to illustrations 3.7a, 3.7b, 3.7c, 3.8, 3.9 and 3.10)
6. Disconnect the negative cable from the battery. Drain the cooling system (see Chapter 1).
7. Detach the housing from the engine (see illustrations). Be prepared for some coolant to spill as the gasket seal is broken. The radiator hose can be left attached to the housing, unless the housing itself is to be replaced.
8. Remove the thermostat, noting the direction in which it was installed in the housing, and thoroughly clean the sealing surfaces (see illustration).
9. Install a new gasket onto the thermostat (see illustration). Make sure it is evenly fitted all the way around.
10. Install the thermostat and housing, positioning the jiggle pin, if equipped, at the highest point (see illustration).
11. Tighten the housing fasteners to the torque listed in this Chapter's Specifications and reinstall the remaining components in the reverse order of removal.
12. Refill the cooling system (see Chapter 1), run the engine and check for leaks and proper operation.

TRANSFER CASE

SHIFT LEVER | REMOVAL AND INSTALLATION
(Refer to illustrations 3.3, 3.4a, 3.4b and 3.4c) NOTE: Although the accompanying photos show the transfer case out of the vehicle, it's not necessary to remove the transfer case for shifter removal.

1. On manual transmission models with the 4WD Shift Selector System, place the transfer shift lever in the High position and turn the 2WD-4WD selector switch to the Off position. For models without the 4WD Shift Selector System, place the transfer case in the 4WD High position.
2. If equipped, remove the center console upper trim panel (see Chapter 11).
3. Remove the four shift lever boot screws, shift lever knob(s), shift lever boot retainer and shifter boot (see illustration).
4. Remove the small shift lever boot, remove the shift lever snap-ring and pull out the shift lever (see illustrations).
5. Installation is the reverse of removal. Lubricate the lower end of the shift lever with multi-purpose grease before installing it.

Subject: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Toyota Tundra, Sequoia service, maintenance, and repair procedures. ISBN-10: 1563928485 | ISBN-13: 9781563928482 | Haynes 92078