Chery Amulet Engine. Manual — part 16

6.Engine stalls right away after started.

Cause

Correction

(1). Ignition coil connection loose or damaged

Connect ignition coil or replace ignition coil

(2). Vacuum leakage in intake manifold

Replace sealing gasket or replace connecting pipe

(

3). Mail measuring orifice blocked

Check and clean mail measuring orifice

(

4). Idle cut-off valve damaged and not open

Check circuit and solenoid

(

5). Idle speed too low

Adjust engine idle speed

(

6). Idle speed fuel outlet port or transition port blocked

Check and clean

7.Rough engine idle speed

Cause

Correction

(1). Air filter core blocked

Clean or replace

(2). Vacuum leakage in Intake manifold or relevant hose Check and service
(3). Spark plug corroded, damaged or

Spark plug gap not correct Replace spark plug

(4). Hydraulic valve lifting rod damaged

Replace the lifting rod

(

5). Low or unstable Cylinder compression pressure

Check and service

(

6). Timing belt tightening incorrectly

Adjust timing belt tension

8. Engine Stalls during idling:
Cause

Correction

(

1). Spark plug corroded, damaged or

Spark plug gap not right. Replace spark plug

(

2). High tension wire damaged

Replace high tension wire

(

3). Ignition timing not correct

Adjust ignition timing

(

4). Hydraulic valve lifter damaged

Replace Hydraulic valve lifting rod

(

5). Low or unstable cylinder compression pressure

Check and service

(

6). PCV hose loose, leaking, or damaged

Connect or replace

9. Engine Stalls within operation speed range
Cause

Correction

(

1). Intake manifold or connecting hose vacuum leakage Check, service or replace

(

2). Spark plug corroded, damaged or Spark plug gap abnormal Replace spark plug

(

3). High pressure wire damaged

Replace

(

4). Ignition coil damaged

Replace

(

5). Low or abnormal cylinder compression pressure Measure pressure and service

10. Engine accelerates hesitate
Cause

Correction

(1). Intake manifold or connecting hose vacuum leaking Service and check
(

2). Spark plug corroded, damaged or

Spark plug gap abnormal Replace spark plug

11.Engine speed is not as specified
Cause

Correction

(1). Intake manifold or connecting hose vacuum leaking

Service and check

12. Engine power is not enough.
Cause

Correction

(1). Incorrect Ignition timing

Check or adjust distributor

(2). Incorrect Timing belt assembly or

Adjust ‘teeth’ belt tension or tension

incorrect belt tension

pulley.

(

3). Throttle valve not widely open

Adjust

(

4). Abnormal or too low cylinder compression pressure Check and service

(

5). Spark plug corroded, damaged or

Spark plug gap abnormal Replace spark plug

(

6). Intake manifold or connecting hose vacuum leaking

Check or service

13. Carburetor backfire.
Cause

Correction

(1). Engine ignited too late

Check or adjust distributor

(2). Incorrect Timing belt assembling or

Adjust ‘teeth’ belt tension and tension pulley

inadequate belt tension

(

3). Spark plug overheated or too much carbon deposits Adjust and service

(

4). Intake valve sealing not well

Check and service

(

5). Intake manifold or connecting hose vacuum leakage

Check and service

14. Oil pressure warning light is illuminated during engine running.
Cause

Correction

(1). Engine oil level too low or not correct Fill in engine oil or apply correct engine oil
(2). Oil pressure warning light woks abnormally

Replace Oil pressure warning light

(3). Engine temperature too high

See No. 17.

(4). Engine bearing or fuel pump worn out

Check, service or replace

(

5). Oil collector blocked or loose

Clean or replace or tighten

15.

Pre-ignition.

Cause

Correction

(

1). Too much carbon deposits in Spark plug or

combustion chamber

Clean carbon deposits

16. Engine noise.
(1). Preignition or knocking occurs during accelerating or under heavy load
Cause

Correction

a. Incorrect ignition timing Check ‘teeth’ belt tension, tension pulley or distributor
b. Intake manifold or connecting hose vacuum leakage

Check and service

c. Too much carbon deposits in Spark plug or combustion

chamber carbon severely Clean carbon deposits

(2). Whistle noise:
Cause

Correction

a. Intake manifold sealing gasket leaks

Replace sealing gasket or tighten bolts

b. Exhaust manifold sealing gasket leaks or

Replace sealing gasket or tighten bolts

exhaust pipe sealing gasket leaks
c. Vacuum hose leaks

Replace

d. Cylinder head gasket burned badly

Check and replace

(3). Knocking or spanking noise
Cause

Correction

a. Hydraulic valve lifter works abnormally

Check and replace

b. Valve mechanism or camshaft worn

out

Check and service

c. Timing belt or tension pulley worn out

Replace

d. Abnormal accessories ie. alternator or water pump

Check, service and replace

(4). Knocking or hammering noise.

Cause

Correction

a. Connecting rod bushing worn out (generally severe Check and service

knocking, may be relieved under load.)

b. Main bearing half shell worn out (booming or Check and service

knocking noise, may be relieved under load)

c. Piston knocking (apparent with engine cold) Check and service
d. Alternator or water pump accessories damaged Check and service



17. Engine is overheated.
Cause

Correction

(1). No sufficient coolant in the cooling system

Add coolant

(2). Thermostat damaged

Replace

(3). Radiator core blocked or air inlet cogged

Clean or replace radiator

(4). Radiator electrical fan or coolant temperature

Check, service and replace

sensor abnormal

(5). Expansion tank pressure cap damaged

Replace

(6). Water pump leaks or damaged

Service or replace

(7). Ignition timing too late

Adjust ignition timing

(8). Air exists in cooling system

Bleeding the air

18. Engine is too cold

Cause

Correction

(1). themostat damaged

replace thermostat

(2). Water temperature sensor damaged

replace water temperature sensor

19. Too much fuel consumption

Cause

Correction

(1). Air filter blocked

replace air filter core

(2). Too high idle speed

adjust idle speed

(3). cylinder compression pressure decreases

check engine

(4). Incorrect ignition timing

adjust ignition timing