Chery Tiggo 5 (T21). Service manual — part 144

10–

22

10

Inspection

1. Check electronic throttle assembly gasket.

Check electronic throttle assembly gasket for worn or
bent. If there is worn or bent, replace electronic throttle
assembly gasket.

2. Check electronic throttle.

Measure electronic throttle resistance according to the
table below.

Cleaning

Cleaning tool

1. Thin stick: used to support throttle valve plate for cleaning the carbon deposited on contact wall between

valve plate and throttle. Please use plastic, wooden or bamboo thin stick. Do not use metal thin stick,
avoiding scratching or deforming the valve plate.

2. Clean cloth or paper towel

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1

2

3

4

5

6

-

+

Tester

Connection

Adjustment

Specified

Condition

Terminal 3 -

Terminal 2

Normal

temperature

1.067 kΩ

Terminal 6 -

Terminal 2

Terminal 6 -

Terminal 3

Rotate throttle

Resistance

between terminal

6 and terminal 2

increases as

throttle opens;

resistance

between terminal

6 and terminal 3

decreases as

throttle opens.

Terminal 5 -

Terminal 2

Terminal 5 -

Terminal 3

Rotate throttle

Resistance

between terminal

5 and terminal 2

decreases as

throttle opens;

resistance

between terminal

5 and terminal 3

increases as

throttle opens.

10–

23

10

Cleaning Process

1. Remove throttle body, and make the valve plate face

upward in free condition. Avoid cleaner flowing into
electronic element through valve plate shaft, resulting in
functional failure.

2. Start to clean when it is as shown in the illustration.

3. Apply appropriate amount of cleaner to the inner wall of throttle valve body, and remove the carbon with a

clean cloth.

4. Support the throttle valve plate with thin stick, and clean

the carbon on valve plate and throttle valve body inner
wall.

5. Turn over the throttle 180°, and perform cleaning with the same procedures as above. Repeat several

times until it is clean.

6. Push the valve plate by hand, and check if valve plate rotates smoothly. If it is stuck, clean the valve plate

again following the cleaning procedures.

7. After cleaning, wipe off cleaner in throttle valve body with absorbent paper.

Installation

Installation is in the reverse order of removal.

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WARNING

 Cleaner is a kind of flammable and corrosive fluid. Follow safety cautions to prevent accidents, and avoid

skin contacting with the cleaner.

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CAUTION

 Clean fitting surface of electronic throttle assembly.
 Perform throttle self-learning procedures after installation (

See page 06-19

). After self-learning completed,

start vehicle and observe if it operates properly.

 Check and add engine coolant.

10–

24

10

Intake Manifold Assembly

Removal

1. Release fuel system pressure (

See page 08-10

).

2. Turn off all the electrical equipment and ignition switch.
3. Disconnect the negative battery cable.
4. Remove the engine trim cover assembly (

See page 10-10

).

5. Remove the fuel rail injector assembly (

See page 08-26

).

6. Remove the electrical throttle assembly (

See page 10-20

).

7. Remove the trim cover front bracket (

See page 10-11

).

8. Remove the intake manifold assembly.

a. Pull out the line assembly with PCV valve assembly

from the PCV valve rubber boot in the direction of
arrow as shown in the illustration.

b. Loosen the elastic clamp (1) and disconnect the

connection between vacuum booster hose and intake
manifold assembly.

c. Loosen the elastic clamp (2) and disconnect the

connection between canister solenoid valve outlet
hose and intake manifold assembly.

d. Remove the intake manifold bracket fixing bolt

(arrow).



(Tightening torque: 18 ± 2 N·m)

CAUTION

 Temperature of hood is very high when engine is running. Before removal, make sure engine has

stopped running and hood has cooled down, otherwise, there is a risk of scald injury.

 Be sure to wear necessary safety equipment when repairing to prevent accidents.
 Try to prevent body paint surface from being scratched during removal and installation.

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2

1

10–

25

10

e. Remove the fixing bolt (1) of oil dipstick on intake

manifold assembly.



(Tightening torque: 8 ± 3 N·m)

f. Disconnect the starter field wire harness connector

(2).

g. Remove the fixing bolt (arrow) of the engine wire

harness on cylinder head cover.



(Tightening torque: 8 ± 3 N·m)

h. Remove 9 fixing nuts (arrow) from the intake manifold

assembly.



(Tightening torque: 8 ± 3 N·m)

i. Move the engine wire harness away, and remove the intake manifold assembly.

HINT:
While removing the intake manifold assembly, disconnect the intake camshaft variable timing control valve
connector, knock sensor connector, back-up light switch and back-up light switch wire harness clip (for MT
model).

9. Disconnect the coupling joint (arrow) between line

assembly and intake manifold assembly, and remove the
line assembly (1) from the intake manifold assembly.

1

2

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1

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