Chery T21 2014 Service Manual page 531

Fuel Supply System Pressure Test
Fuel Pressure Specifications
SQR484F
Fuel Pressure on Fuel Rail - Key (ON)
Fuel Pressure on Fuel Rail - Engine Idling
Fuel Pressure on Fuel Rail - Key (LOCK)
WARNING
 When operating fuel supply system, work area should be in good ventilation and keep fire sources or
open flames away from the work area, in which the fire extinguisher should be equipped.
 Before operating fuel supply system, please touch vehicle body to discharge static electricity; failure to
do so will cause a fire, even result in an explosion.
 Before removing and installing fuel pipes, release fuel supply system pressure.
CAUTION
 Make sure battery voltage is 11 - 12 V.
 Service life of fuel filter assembly should be within 30,000 km.
 Make sure fuel supply system lines are securely connected, preventing fuel supply system from leaking.
1. Release fuel system pressure
2. Remove the engine trim cover assembly
3. Disconnect the inlet hose connector and connect the fuel
supply system pressure tester to a position between inlet
hose and fuel rail.
4. Start engine and run it at idle, and then read the value on pressure tester.
Start engine and read the value while idling:
- Standard pressure at idle should be higher than 400 kPa.
- If measured pressure value is lower than 400 kPa, check fuel filter assembly for blockage.
Replace fuel filter assembly if necessary
- If measured pressure value is lower than 400 kPa and fuel filter assembly operates properly, check
electric fuel pump assembly. Replace as necessary.
- If measured pressure value is too high, it indicates that injector may be clogged or electric fuel pump
assembly pressure modulating valve may be malfunctioning.
Replace injector (See page
Chery Automobile Co., Ltd.
(See page 08-10).
(See page 10-10).
(See page 08-12).
08-26) or electric fuel pump assembly
08 - SQR484F FUEL SUPPLY SYSTEM
Pressure (kPa)
400
400
400
(See page 08-14) if necessary.
08
Fuel Hose
RT21080040
11
08–