2009 CHERY TIGGO engine oil

Downloaded from www.Manualslib.com manuals search engine •Using special tool MD-998440 (1) (return leakage tester), install the hydraulic adjuster.
• After the plunger has moved slightly (0.2 - 0.5
mm), measure the time it takes to move an addi-
tional 1.0 mm. If the measurement value is not
within specifications, replace the hydraulic adjuster-
.Standard Value:4-20seconds/1 mm (applying
diesel oil of 15-20°C)
Rocker Arms
•Inspect the surface of the roller (2) on all rocker
arms. If there is any damage, the rocker arm
should be replaced.
• Inspect the roller for smooth operation. If the roller
does not revolve smoothly or is loose, the rocker
arm should be replaced.
• Inspect the internal diameter (1) of the rocker arms.
If there is any damage, the rocker arm should be
replaced.
Valve & Valve Guides
Specifications
Valve & Valve Guide Specifications
DESCRIPTION SPECIFICATION LIMIT
Intake Valve Deflection 0.02 mm0.02 mm
Exhaust Valve Deflection 0.04 mm0.04 mm
Intake Valve Clearance 0.020 - 0.050 mm0.10 mm
Exhaust Valve Clearance 0.030 - 0.070 mm0.15 mm
Intake Valve Edge Thickness 1.0 mm0.5 mm
Exhaust Valve Edge Thickness 1.2 mm0.7 mm
Intake Valve Height 112.30 mm111.80 mm
Exhaust Valve Height 114.11 mm113.61 mm
Intake Valve Guide Height 49.30 mm49.80 mm
Exhaust Valve Guide Height 49.30 mm49.80 mm
CYLINDER HEAD UNIT REPAIR
LTSM020159
LTSM020037
02–246Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Disassembly
NOTE :
The following special tools are required to perform the repair procedure:
•MD-998772 - Valve Spring Compressor
1 - Cylinder Head Bolt
2 - Valve Spring Keepers
3 - Upper Valve Spring Retainer
4 - Valve Spring
5 - Valve Oil Seal6 - Lower Valve Spring Retainer
7 - Valve Guide
8 - Valve Seat
9 - Valve
10 - Cylinder Head
CYLINDER HEAD UNIT REPAIR
LTSM020090
02
02–247Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine NOTE :
Before installing the valve seat, heat the cylinder head to the temperature of about 250°, or cool the valve seat in
liquid nitrogen in order to install the valve seat.
•Machine the new valve seat and valve to proper specifications.
Assembly
1. Install the valves into the cylinder head (larger diameter on intake side).
2. Using special tool MD-998774, install the new valve oil seal.
3. Install the valve springs.
4. Install the valve spring retainers.
5. Using valve spring compressor MD-998772 (1),
compress the valve springs.
6. Install the valve keepers.
7. Strike the valve stem lightly with a plastic hammer after installation to verify proper assembly.
Valve Springs
Specifications
Valve Spring Specifications
DESCRIPTION SPECIFICATION LIMIT
Spring Free Length 51.0 mm50.0 mm
Spring Center Line ≤2.0° ≤4.0°
CYLINDER HEAD UNIT REPAIR
LTSM020092
02–252Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Disassembly
NOTE :
The following special tools are required to perform the repair procedure:
•MD-998772 - Valve Spring Compressor
1 - Cylinder Head Bolt
2 - Valve Spring Keepers
3 - Upper Valve Spring Retainer
4 - Valve Spring
5 - Valve Oil Seal6 - Lower Valve Spring Retainer
7 - Valve Guide
8 - Valve Seat
9 - Valve
10 - Cylinder Head
CYLINDER HEAD UNIT REPAIR
LTSM020090
02
02–253Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The Engine Control Module (ECM) consists of a microcomputer and electrical connectors containing circuits for signal
input, output, power supply and ground. The ECM controls the engine functions.
The following are the input and output components monitored by the ECM. The monitored functions include compo-
nents from the engine, ignition, transaxle, air conditioning, or any other ECM supported subsystem.
ECM Inputs
•Brake Switch Sensor
• Refrigerant Pressure Sensor
• Camshaft Position (CMP) Sensor
• Crankshaft Position (CKP) Sensor
• Engine Coolant Temperature (ECT) Sensor
• Manifold Absolute Pressure (MAP) Sensor (1.6L)
• Air Flow Sensor (1.8L)
• Throttle Position Sensor (Integral with Electronic Throttle Control Actuator)
• Power Steering Switch
• Accelerator Pedal Position (APP) Sensor
• Knock Sensor
• Oxygen Sensor (Upstream & Downstream)
• Vehicle Speed Sensor
• Clutch Pedal Switch (Manual transaxle only)
ECM Outputs
• Canister Control Valve
• Fuel Injectors
• Fuel Pump Relay
• Electronic Throttle Control Actuator
• Ignition Coil
• A/C Compressor
• Cooling Fan
• Oxygen Sensor Heater (Upstream & Downstream)
Operation
The ECM monitors components and circuits, and tests them in various ways depending on the hardware, function,
and type of signal. For example, analog inputs, such as throttle position or engine coolant temperature are typically
checked for opens, shorts and out-of-range values. This type of monitoring is carried out continuously. Some digital
inputs like vehicle speed or crankshaft position rely on rationality checks - checking to see if the input value makes
sense at the current engine operating conditions. These types of tests may require monitoring several components
and can only be carried out under appropriate test conditions.
The ECM is a pre-programmed, microprocessor-based digital computer. It regulates ignition timing, air-fuel ratio,
emission control devices, charging system, certain transmission features, speed control, air conditioning compressor
clutch engagement and idle speed. The ECM can adapt its programming to meet changing operating conditions.
03
03–3Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Electronic Engine Control Input & Output Device Failure Modes
NUMBER ITEMFAILURE MODECORRECTION
1 CKP•
Engine is hard to start.
• The engine RPM will be limited after the engine starts.
• The highest RPM is less than 3800.
• Excessive exhaust emissions.
• No ignition signal to the ECM.
• The tachometer does not work.
• Rough engine operation. Replace
2 CMP•
The fuel injector ON time may vary from 720 degrees to 360
degrees.
• The sensor output is not correct, the MIL light will turn on
when with the second revolution after the engine starts.
• Engine is hard to start.
• The highest RPM is less than 4000. Replace
3 APPS•
The MIL light will turn on.
• Poor acceleration.
• The engine RPM will be limited after the engine starts. Replace
4 ECT•
Engine hard to start when cold.
• Engine hard to start when hot.
• Poor driving capability.
• If the sensor circuit is shorted to power, the engine will run
under the default values.
• The temperature gauge indicates too high.
• The temperature gauge indicates too low.
• The cooling fan operates continuously on high speed.
• The high temperature warning lamp will flash when the IP
indicates low temperature. Replace
5 MAF•
The cooling fan will operate for approximately 60 seconds on
high speed after the ignition switch is turned off.
• Poor acceleration.
• Poor driving capability. Replace
6 O2 Sensor •
Poor fuel economy.
• Excessive exhaust emissions.
• Sluggish acceleration.
• Poor driving capability. Replace
7 Knock Sensor •
The engine produces an engine knock.
• Overheated engine.
• Excessive exhaust emissions.
• Poor fuel economy.
• Lack of engine power.
• Internal engine damage. Replace
8 ECM•
Unstable engine idle.
• Poor acceleration.
• Unable to start.
• High engine idle.
• The engine exhaust exceeds emission standards.
• Engine is hard to start.
• Air conditioner does not operate.
• Fuel injector control failure.
• Engine stalls out. Replace
9 Ignition Coil •
Unstable idle.
• Lack of engine power.
• Poor fuel economy

.
• Excessive exhaust emissions.
• Weak spark. Replace
GENERAL INFORMATION
03–4Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ECM Connector Pin-Out Table
ECM PIN-OUT TABLE
PINCIRCUIT IDENTIFICATION PINCIRCUIT IDENTIFICATION
1 (With EOBD)
42Intake Air Temperature Sensor
Upstream Oxygen Sensor Heater
(Without EOBD)
2 Ignition Coil 2 43-
3 GND (Ignition) 44Switched Supply Voltage
4 (With EOBD)
45Switched Supply Voltage
Downstream Oxygen Sensor Heater
(Without EOBD)
5 Ignition Coil 1 46Canister Control Valve
6 Injector 2 47Injector 4
7 Injector 3 48Upstream Oxygen Sensor Heater (With
EOBD)
(Without EOBD)
8 Engine Speed Output 49-
9 Coolant Temperature Output 50Fan Relay Control
10 Fuel Consumption Output 51GND (Signal)
11 EPC Lamp 52-
12 Continuous Supply Voltage 53GND (Signal)
13 Ignition Switch 54 Electronic Throttle Control Actuator
14 EMS Relay (Main Relay) 55Downstream Oxygen Sensor
15 Crankshaft Position Sensor 56-
16 Accelerator Position Sensor 57-
17 Sensor (GND) 58Brake Switch
18 Upstream Oxygen Sensor 59Vehicle Speed Sensor
19 Knock Sensor 1 60A/C Middle Pressure Switch
20 Knock Sensor 2 61GND (Power)
21 Brake Switch 62-
22 -63Switched Supply Voltage
23 Accelerator Sensor 64 Electronic Throttle Control Actuator
24 -65 Electronic Throttle Control Actuator
25 -66 Electronic Throttle Control Actuator
26 -67 Electronic Throttle Control Actuator
27 Injector 1 68Fan Relay Control 2
28 Downstream Oxygen Sensor Heater
(With EOBD) 69Air Compressor Relay
(Without EOBD)
29 -70Fuel Pump Relay
30 -71Diagnostic Link K
31 MIL Lamp 72-
32 Regulated Sensor Supply 3 73Regulated Sensor Supply 2
33 Regulated Sensor Supply 1 74Clutch Pedal Switch
34 Crankshaft Position Sensor 75A/C Stand By
GENERAL INFORMATION
03–20Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 12.CHECK INJECTOR RESISTANCE
• Disconnect injector harness connectors (See Fuel Pressure Test in Section 04 - Fuel Delivery).
• Check the resistance of the injectors.
INJECTOR
NO. INJECTOR
TERMINAL RESISTANCE
(APPROXIMATELY) (20°C)
11&2
16
21&2
31&2
41&2
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace injector.
Go to step 14.
13.CHECK INJECTOR
WARNING!
Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
• Remove fuel delivery rail with injectors (See Fuel Injector Rail Removal & Installation 1.6L & 1.8L & 2.0L in
Section 04 Fuel Delivery).
NOTE :
Be careful not to drop the fuel injectors when removing the fuel delivery rail.
• Keep fuel hose and all injectors connected to injector rail.
• Disconnect all ignition coil harness connectors.
• Prepare pans or saucers under each injector.
• Observe the fuel injectors and crank engine for about 3 seconds.
• Fuel should be sprayed evenly by each injector.
Is the check result normal?
Ye s>>Go to next step.
No
>>Clean any injector that sprays unevenly or replace any injector that does not spray fuel.
DIAGNOSIS & TESTING
03
03–129Chery Automobile Co., Ltd.