Opel Frontera UBS. Service manual — part 1255
SERVICE INFORMATION 00 – 3
1.
HARD STARTING
Checkpoint
Possible cause
Correction
Battery
Loose battery cable terminal
Poor connections due to rusting
Clean and/or retighten the battery
cable terminal
1. STARTER MOTOR INOPERATIVE
Battery discharged or weak
Recharge or replace the battery
Fan belt loose or broken
Adjust or replace the fan belt
Fusible link
Fusible link shorted
Replace the fusible link
Starter switch
Defective starter switch or starter relay
Replace the starter switch or the
starter relay
Starter motor
Defective magnetic switch or starter relay
Repair or replace the magnetic
switch
Defective starter motor
Repair or replace the starter motor
2. STARTER MOTOR OPERATES BUT ENGINE DOES NOT TURN OVER
Battery
Loose battery cable terminal
Poor connections due to rusting
Clean and/or retighten the battery
cable terminal
Battery discharged or weak
Recharge or replace the battery
Fan belt loose or broken
Adjust or replace the fan belt
Starter motor
Defective pinion gear
Replace the pinion gear
Defective magnetic switch
Repair or replace the magnetic
switch
Brush wear, Weak brush spring
Replace the brush and/or the brush
spring
Engine
Piston, crank bearing seizuer, or other
damage
Repair or replace the related parrts
00 – 4 SERVICE INFORMATION
Checkpoint
Possible cause
Correction
Engine stop
mechanism
Defective fuel cut solenoid valve
Replace the fuel cut solenoid valve
3. ENGINE TURNS OVER BUT DOES NOT START
FUEL IS NOT BEING DELIVERED TO THE INJECTION PUMP
Fuel
Fuel tank is empty
Fill the fuel tank
Fuel piping
Clogged or damaged fuel lines. Loose fuel
line connection
Repair or replace the fuel lines
Retighten the fuel line connection
Fuel filter
Fuel filter overflow valve does not close
Repair or replace the fuel filter
overflow valve
Clogged fuel filter element
Replace the fuel filter element or
the filter cartridge
Fuel system
Air in the fuel system
Bleed the air from the fuel system
Fuel feed pump
Defective feed pump
Repair or replace the feed pump
FUEL IS BEING DELIVERED TO THE INJECTION PUMP
Fuel
Use of the wrong fuel
Use the correct fuel
Water particles in the fuel
Carge the fuel
Fuel system
Air in the injection pump
Bleed the air from the fuel system
Injection nozzle
Injection nozzle sticking
Replace the injection nozzle
Injection nozzle injection starting pressure
too low
Improper spray condition
Adjust or replace the injection
nozzle
Injection pump
Defective fuel injection nozzle resulting in
the fuel drippage after fuel injection
Replace the delivery valve
Defective injection pump control rack
operation
Repair or replace the injection pump
control rack
Injection pump plunger worn or stuck
Replace the injection pump plunger
assembley
Injection pump drive shaft seizure or other
damage
Replace the injection drive shaft
Injection pump governor spring seizure
Replace the injection pump
governor spring
SERVICE INFORMATION 00 – 5
Idling improperly adjusted
Adjust the idling
Idling system
Checkpoint
Possible cause
Correction
Defective fast idling speed control device
Repair or replace the fast idling
speed control device
Fast idling speed
control device
Accelerator control system improperly
adjusted
Adjust the accelerator control
system
Accelerator control
system
2.
UNSTABLE IDLING
4. QUICK-ON START SYSTEM (QOS III)
PREPARATION
1. Disconnect the thermoswitch connector.
2. Determine whether or not the glow plugs are receiving power.
a) Make sure that the starter switch is "OFF"
b) Connect a voltmeter between one of the glow plugs and the cylinder wall.
c) Move the starter switch to the "ON" position.
The voltmeter needle will show the souse voltage (12V) if the glow plugs are receiving power.
If the voltmeter needle does not move, the glow plugs are not receiving power.
3. Perform the troubleshooting procedure.
1.
2.
3.
Replace the fusible link wire
Replace the indicator light fuse
Replace the indicator light bulb
Glow plug indicator
light does not turn
on.
Defective Fusible link wire
Broken indicator light fuse
Defective indicator light bulb
1.
2.
3.
4.
Replace the fusible link wire
Replace or Repair glow plug relay
connector
Replace or Repair glow plug
connector
Replace or Repair quick-on start
timer connector
Preheating system
does not work
Defective Fusible link wire shorted
Defective glow plug relay connector
Defective glow plug connector
Defective quick-on start timer connector
1.
2.
3.
Replace thermo sensor or repair
wiring harness.
Replace glow plug
Replace timer unit
Preheating time to
long or to short
Defective thermo sensor include
defective wiring harness
Defective glow plug
Defective timer unit
00 – 6 SERVICE INFORMATION
Checkpoint
Possible cause
Correction
Injection timing improperly adjusted
Adjust the injection timing
Insufficient injection volume
Adjust the injection volume
Defective idle spring
Replace the idle spring
Defective governor lever operation
Repair or replace the governor
lever
Regulator valve improperly adjustment
Adjust or replace the regulator valve
Broken plunger spring
Replace the plunger spring
Worn plunger
Replace the plunger assembly
Worn cam disc
Replace the cam disc
Valve clearance improperly adjusted
Adjust the valve clearance
Valve clearance
Blown out cylinder head gasket. Worn
cylinder liner.
Piston ring sticking between
the valve and the valve seat
Replace the related parts
Compression
pressure
Fuel system leakage or blockage
Repair or replace the fuel system
Fuel system
Air in the fuel system
Bleed the air from the fuel system
Water particles in the fuel system
Change the fuel
Clogged fuel filter element
Replace the fuel filter element or
the fuel filter cartridge
Fuel filter
Defective fuel feed pump
Repair or replace the fuel feed pump
Fuel feed pump
Injection nozzle sticking
Replace the injection nozzle
Injection nozzle
Injection nozzle injection starting pressure
too low
Improper spray condition
Adjust or replace the injection
nozzle
Defective delivery valve resulting in fuel
drippage after fuel injection
Replace the delivery valve
Injection pump
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст