Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Precaution

PRECAUTION

1. PRECAUTION

(a) Before starting work on the fuel system, including inspections and repairs, disconnect the cable from the negative (-) battery terminal.

(b) Do not smoke or work near fire when performing work on the fuel system.

(c) Keep gasoline away from rubber or leather parts.

2. DISCHARGE FUEL SYSTEM PRESSURE

CAUTION:

  • Take precautions to prevent gasoline from spilling out before removing fuel system parts.
  • Pressure still remains in the fuel lines even after performing the following procedures. When disconnecting a fuel line, cover it with a piece of cloth to prevent fuel from spraying or coming out.

(a) Remove the EFI MAIN No. 2 relay from the engine room relay block.

(b) Disconnect the 2 connectors.

(c) Start the engine. After the engine stops, turn the ignition switch off.

(c) Start the engine. After the engine stops, turn the ignition switch off.

HINT:

DTC P0171 (system to lean) may be stored.

(d) Check that the engine does not start.

(e) Remove the fuel tank cap and let the air out of the fuel tank.

(f) Disconnect the cable from the negative (-) battery terminal.

NOTICE:

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work.

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  • When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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(g) Connect the 2 connectors.

(h) Reinstall the EFI MAIN No. 2 relay.

3. FUEL SYSTEM

(a) When disconnecting a high pressure fuel line, a large amount of gasoline will spill out. Follow these procedures.

(1) Disconnect the fuel pump tube.

(2) Drain any fuel remaining inside the fuel pump tube.

(3) To protect the disconnected fuel pump tube from damage and contamination, cover it with a plastic bag.

(4) Put a container under the connection.

(b) Perform the following procedure when disconnecting the fuel tube connector (Quick Type A).

(1) Fuel Hose Connector Cover Type:

  1. Disengage the lock claw by lifting up the cover as shown in the illustration.
Text in Illustration

*a

Fuel Hose Connector Cover

(2) Fuel Pipe Clamp Type:

  1. Disengage the 2 claws and remove the No. 2 fuel pipe clamp. Remove the No. 1 fuel pipe clamp
  2. Remove the No. 1 fuel pipe clamp

(3) Check whether there is any foreign matter on the fuel pipe around the fuel tube connector before disconnecting it and remove the foreign matter as necessary.

(4) Pinch the retainer of the fuel tube connector, and then pull out the fuel tube connector to disconnect the fuel tube from the fuel pipe.

Text in Illustration

*a

Retainer

*b

Nylon Tube

*c

Fuel Pipe

*d

O-ring

*e

Fuel Tube Connector

Pinch

Pull

NOTICE:

Be sure to disconnect the fuel tube connector by hand.

(5) If the fuel tube connector and fuel pipe are stuck, push in and pull on the fuel tube connector to release it. Pull the fuel tube connector out of the fuel pipe carefully.

Text in Illustration

Pull

Push

NOTICE:

Be sure to disconnect the fuel tube connector by hand.

(6) Check that there is no dirt or other foreign matter on the sealing surfaces of the disconnected fuel pipes. Clean the surfaces if necessary.

(7) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

NOTICE:

Do not damage the fuel pipe or fuel tube connector, and prevent entry of foreign matter.

(c) Perform the following procedure when connecting a fuel tube connector (Quick Type A).

(1) Check if there is any damage or foreign matter on the connecting parts of the fuel pipes.

(2) Line up the 2 parts of the fuel pipes to be connected, and push them together until the fuel tube connector makes a "click" sound.

Text in Illustration

Push

HINT:

If the fuel pipe is difficult to push into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

(3) After connecting the fuel pipes, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

Text in Illustration

Pull

(4) Fuel Pipe Clamp Type:

  1. Install the No. 1 fuel pipe clamp.
  2. Engage the 2 claws and install the No. 2 fuel pipe clamp.

(5) Fuel Hose Connector Cover Type:

  1. Engage the lock claws to the connector by pushing down on the cover.

(6) Check for any fuel leaks.

(d) Perform the following procedure when disconnecting the fuel tube connector (Quick Type B).

(1) Check whether there is any foreign matter on the fuel pipe around the fuel tube connector before disconnecting it and remove the foreign matter as necessary.

(2) Pull the tabs of the retainer to disengage the lock claws and pull out the fuel tube connector from the fuel pipe.

Text in Illustration

*a

Retainer

Pull

Pull Out

NOTICE:

Be sure to disconnect the fuel tube connector by hand.

(3) If the fuel tube connector and fuel pipe are stuck, push in and pull on the fuel tube connector to release it. Pull the fuel tube connector out of the fuel pipe carefully.

Text in Illustration

Pull

Push

NOTICE:

Be sure to disconnect the fuel tube connector by hand.

(4) Check that there is no dirt or other foreign matter on the sealing surfaces of the disconnected fuel pipes. Clean the surfaces if necessary.

(5) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

(e) Perform the following procedure when connecting the fuel tube connector (Quick Type B).

(1) Check if there is any damage or foreign matter on the connecting parts of the fuel pipes.

(2) Line up the fuel pipe and fuel tube connector and push them together until a "click" sound is heard. If the pipe is difficult to push into the connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

Text in Illustration

*a

Retainer

Push

Push Down

(3) Push down the retainer.

(4) After connecting the fuel pipes, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

Text in Illustration

Pull

(f) Observe these precautions when handling the nylon tube.

NOTICE:

  • Be careful not to turn the connection part of the nylon tube and the quick connector when connecting them.
  • Do not kink the nylon tube.
  • Do not remove the EPDM protector on the outside of the nylon tube.
  • Do not bend the nylon tube as this may cause blockage.

(g) Perform the following procedure when disconnecting the fuel tube connector (Quick Type C).

(1) Pinch the retainer and pull out the fuel tube connector with the fuel tube connector pushed toward the fuel pipe to disconnect the fuel tube from the fuel pipe.

Text in Illustration

*a

Fuel Tube Connector

*b

Fuel Pipe

Push

Pinch

NOTICE:

  • Remove dirt or foreign objects on the fuel tube connector before performing this procedure. Do not allow any scratches or foreign objects on the parts when disconnecting
  • Do not allow any scratches or foreign objects on the parts when disconnecting them as the fuel tube connector has the O-ring that seals the fuel pipe.
  • Perform this work by hand. Do not use any tools.
  • Do not forcibly bend, kink or twist the nylon tube.
  • Protect the connecting part by covering it with a plastic bag after disconnecting the fuel tube.
  • If the fuel tube connector and fuel pipe are stuck, push and pull them to release them.
Text in Illustration

*a

Fuel Tube Connector

*b

Fuel Pipe

*c

Nylon Tube

*d

O-ring

(h) Perform the following procedure when connecting the fuel tube connector (Quick Type C).

(1) Align the fuel tube connector with the fuel pipe, and then push in the fuel tube connector until the retainer makes a "click" sound to connect the fuel tube to the fuel pipe.

Text in Illustration

Push

NOTICE:

  • Check that there are no scratches or foreign objects on the connected part of the fuel tube connector and fuel pipe before performing this procedure.
  • After connecting the fuel tube, check that the fuel tube is securely connected by pulling the fuel tube connector.

(2) After connecting the fuel pipe and the connector, check that the fuel pipe and connector are securely connected by trying to pull them apart.

Text in Illustration

Pull

(3) Inspect for fuel leaks.

4. FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY

(a) Do not disconnect the tube shown in the illustration when disassembling the fuel suction with pump and gauge tube assembly. Doing so will cause reassembly of the fuel suction with pump and gauge tube assembly to be impossible as the tube is welded to the plate.

5. INSPECT FOR FUEL LEAK

5. INSPECT FOR FUEL LEAK

Click here Parts Location

Fuel System
...

Parts Location
PARTS LOCATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

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