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:
Lost Communication with ECM / PCM "A" (U0100,U0129,U0142,U0151,U0163,U023A,U1104)
DESCRIPTION
The combination meter communicates with the ECM, skid control ECU, power steering
ECU, main body ECU (multiplex network body ECU), airbag sensor assembly, navigation
receiver assembly*1, radio and display receiver assembly*2, Forward recognition
camera*3 and Millimeter wave radar ...
Removal
REMOVAL
PROCEDURE
1. REMOVE INTAKE MANIFOLD
(See page )
2. REMOVE WIRE HARNESS CLAMP BRACKET
(a) Remove the 2 bolts and wire harness clamp bracket.
3. REMOVE FUEL TUBE SUB-ASSEMBLY
(a) Disconnect the fuel tube sub-assembly from ...
Lost Communication with ECM / PCM (U0100,U0140,U0142,U0155,U1117)
DESCRIPTION
These DTCs are stored when there is a CAN communication malfunction between the
certification ECU (smart key ECU assembly), ECM, main body ECU (multiplex network
body ECU) or combination meter assembly, and data from the option connector (bus
buffer ECU) cannot be received.
HINT: ...