Toyota Tacoma 2015-2018 Service Manual: Repair
REPAIR
PROCEDURE
1. REPAIR INTAKE VALVE SEATS
NOTICE:
- Repair the intake valve seat while checking the seating position.
- Keep the lip free of foreign matter.
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(a) Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification. |
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(b) Using 30° and 60° cutters, correct the valve seat so that the intake valve contacts the entire circumference of the seat. The contact should be in the center of the intake valve seat, and the intake valve seat width should be maintained within the specified range around the entire circumference of the intake valve seat. Text in Illustration
Standard width: 1.1 to 1.5 mm (0.0433 to 0.0591 in.) |
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(c) Hand-lap the intake valve and intake valve seat with an abrasive compound.
(d) Check the intake valve seating position.
2. REPAIR EXHAUST VALVE SEATS
NOTICE:
- Repair the seat while checking the seating position.
- Keep the lip free of foreign matter.
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(a) Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification. |
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(b) Using 30° and 75° cutters, correct the exhaust valve seat so that the exhaust valve contacts the entire circumference of the seat. The contact should be in the center of the exhaust valve seat, and the exhaust valve seat width should be maintained within the specified range around the entire circumference of the exhaust valve seat. Text in Illustration
Standard width: 1.3 to 1.7 mm (0.0512 to 0.0669 in.) |
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(c) Hand-lap the exhaust valve and exhaust valve seat with an abrasive compound.
(d) Check the exhaust valve seating position.
Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repairs" after replacing the cylinder head sub-assembly
or cylinder head LH (See page ).
PROCEDURE
1. INSTALL SPARK ...
Other materials:
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK FOR DTC
HINT:
When using the Techstream with the engine switch off to troubleshoot:
Connect the Techstream to the DLC3 and turn a courtesy light switch on and off
at 1.5-second intervals until communication between the Techstream and vehicle begins.
(a) Connect the ...
Open or Short in Front Speed Sensor RH Circuit (C1405,C1406)
DESCRIPTION
Refer to DTCs C1401 and C1402 (See page ).
DTC Code
DTC Detection Condition
Trouble Area
C1405
C1406
Either condition is met:
An open in the speed sensor signal circuit continues for 0.5
seconds or mor ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedures for both the LH and RH sides.
The procedure described below is for the LH side.
PROCEDURE
1. REMOVE FRONT DOOR LOWER FRAME BRACKET GARNISH
2. REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG
3. REMOVE FRONT ...
