Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Cooling System

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT FOR COOLANT LEAK

CAUTION:

Do not remove the radiator cap sub-assembly, cylinder block drain cock plug or radiator drain cock plug while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

(a) Remove the radiator cap sub-assembly.

(b) Fill the radiator assembly with engine coolant and install a radiator cap tester.

(c) Warm up the engine.

(d) Using the radiator cap tester, increase the pressure inside the radiator assembly to 118 kPa (1.2 kgf/cm2, 17 psi), and then check that the pressure does not drop.

If the pressure drops, check the hose, radiator assembly and engine water pump assembly for leakage. If no external leakage is found, check the heater core, cylinder block sub-assembly and cylinder head sub-assembly.

(e) Remove the radiator cap tester.

(f) Install the radiator cap sub-assembly.

2. INSPECT ENGINE COOLANT LEVEL IN RESERVOIR

(a) The engine coolant should be between the LOW and FULL lines when the engine is cold.

Text in Illustration

*a

FULL Line

*b

LOW Line

If the engine coolant is below the LOW line, check for leakage and add TOYOTA Super Long Life Coolant (SLLC) or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology to the FULL line.

NOTICE:

Never use water as a substitute for engine coolant.

3. INSPECT ENGINE COOLANT QUALITY

CAUTION:

Do not remove the radiator cap sub-assembly, cylinder block drain cock plug or radiator drain cock plug while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

(a) Remove the radiator cap sub-assembly.

(b) Check for excessive deposits of rust or scales around the radiator cap sub-assembly and radiator filler hole. Also, the engine coolant should be free of oil.

If the engine coolant is excessively dirty, replace the engine coolant.

(c) Install the radiator cap sub-assembly.

Coolant
Replacement REPLACEMENT PROCEDURE 1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package) 2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 3. DRAIN ENGINE COOLANT CAUTION: ...

Radiator
...

Other materials:

Occupant Classification ECU Malfunction (B1795)
DESCRIPTION DTC B1795 is set when a malfunction is detected in the occupant detection ECU. Troubleshoot DTC B1771 first when both DTCs B1771 and B1795 are present. DTC No. DTC Detections Conditions Trouble Areas B1795 Occupant detection ...

Removal
REMOVAL CAUTION / NOTICE / HINT Text in Illustration *a Object Exceeding Weight Limit of Transmission Jack Be sure to perform this procedure with several people as the rear differential carrier assembly is very heavy. Be sure to follow the procedure ...

Accelerator Pedal
Components COMPONENTS ILLUSTRATION On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT ACCELERATOR PEDAL SENSOR ASSEMBLY (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / En ...

В© 2011-2024 Copyright www.ttguide.net