Opel Frontera UBS. Manual - part 1401

 

  Index      Opel     Opel Frontera UBS - service repair manual 1998-2002 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1399  1400  1401  1402   ..

 

 

Opel Frontera UBS. Manual - part 1401

 

 

6E–198

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

Excess Engine Oil Consumption

 

Step

Action

Value(s)

Yes

No

1

DEFINITION:
Oil consumption measured in road tests is higher than
expected.

Was OBD System check performed?

Go to 

Step 2

Go to 

OBD

System

Check

2

1. Perform a bulletin research.
2. If a bulletin that addresses the symptom is found,

correct the condition as instructed in the bulletin.

Was a bulletin found?

Verify repair

Go to 

Step 3

3

1. Check if a correct engine oil is used.
2. If a problem is found, change engine oil.

Was a problem found?

Verify repair

Go to 

Step 4

4

1. Check oil pipe connections for leakage.
2. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Go to 

Step 5

5

1. Check oil seals and gaskets for leakage.
2. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Go to 

Step 6

6

1. Connect Tech 2 to the vehicle.
2. Perform RPCV test to check its function.
3. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Go to 

Step 7

7

1. Check piston ring for damage & groove wear.
2. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Go to 

Step 8

8

1. Check valve stem, valve guide and oil controller for

wear.

2. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Go to 

Step 9

9

1. Check camshaft carrier & cylinder head gaskets for

blow-by.

2. If a problem is found, repair or replace as

necessary.

Was a problem found?

Verify repair

Go to 

Step 10

10

1. Review all the diagnostic procedures in this table.
2. If all procedures have been completed and no

malfunctions have been found, review/inspect the
following:

D

Visual/physical check

D

Tech 2 data list

D

Freeze Frame data

D

All electrical connections in suspected circuits
& systems

3. If a problem is found, repair as necessary.

Was a problem found?

Verify repair

Contact

Technical

Assistance

6E–199

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

Default Matrix Table

Service Procedure Default Strategy

A referral strategy has been established to assist the
technician with additional information when the cause of

the failure cannot be determined.  If no problem is found
after performing diagnostics, then refer to the default
matrix table for further diagnostic information.

Default Matrix Table

Strategy Based Diagnostic Charts

Initial Diagnosis

Default Section(s)

On-Board Diagnostic (OBD) System
Check

Vehicle does not enter diagnostics.

Chassis Electrical

On-Board Diagnostic (OBD) System
Check

Vehicle enters diagnostics and
communicates with the Tech 2.  MIL is
“ON” in diagnostics.  Engine does not
start and run.

HEUI System Check

On-Board Diagnostic (OBD) System
Check

Engine starts and runs, no ECM codes
set.  Customer complains of vibration.

On-Board Diagnostic (OBD) System
Check

Engine starts and runs, no ECM codes
set.  Customer complains of harsh or
soft shift, poor performance, delayed or
no engagement into drive or reverse,
transmission fluid leak, transmission
noise or vibration, or improper TCC
operation.

Automatic Transmission

ECM Power and Ground Check

On-Board Diagnostic (OBD) System
Check.

Chassis Electrical

ECM Power and Ground Check

On-Board Diagnostic (OBD) System
Check. ECM power and ground circuits
OK. Data link voltage incorrect.

Chassis Electrical

On-Board Diagnostic (OBD) System
Check

Engine starts and runs, no ECM codes
set.  Customer complains of harsh or
soft shift, poor performance, delayed or
no engagement into drive or reverse,
transmission fluid leak, transmission
noise or vibration, or improper TCC
operation.

Automatic Transmission

Symptoms

Initial Diagnosis

Default Section(s)

Intermittents

1. On-board diagnostic (OBD)

system check.

2. Careful visual/physical inspections.

Chassis Electrical

Hard Starts

1. OBD system check.
2. Sensors (ECT, MAP, EGR, AP) ;

output chart.

3. Fuel system electrical test, fuel

system diagnosis.

4. Injector system.

Engine Mechanical, Injector
System Check, Exhaust System
Diagnosis

Surges and/or Chuggles

1. OBD system check.
2. Fuel system diagnosis.
3. Injector system.

Calibration ID “Broadcast”
/Service Bulletins, Ignition
System Check, Generator
Output, Exhaust System
Diagnosis

Lack of Power, Sluggish or Spongy

1. OBD system check.
2. Fuel system diagnosis.
3. Injector system.

Refer to 

Exhaust System in

Engine Exhaust, TCC
Operation, Calibration
ID/Service Bulletins

6E–200

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

Symptoms

Initial Diagnosis

Default Section(s)

Hesitation, Sag, Stumble

1. OBD system check.
2. AP.
3. MAP output check.
4. Fuel system diagnosis.
5. Injector system.

Generator Output Voltage (refer
to 

Chassis Electrical),

Calibration ID/Service Bulletins,
Ignition System Check

Rough, Unstable, or Incorrect Idle,
Stalling

1. OBD system check.
2. Fuel injector test.

MAP Output Check, Throttle
Linkage, A/C Clutch Control
Circuit Diagnosis, Calibration
ID/Service Bulletins, Generator
Output Voltage (refer to 

Chassis

Electrical), Exhaust Diagnosis

Poor Fuel Economy

1. OBD system check.
2. Careful visual/physical inspection.
3. Injector system.
4. Cooling system.

TCC Operation, Exhaust
System (refer to 

Engine

Exhaust)

Engine Cranks But Will Not Run

1. OBD system check.

Fuel System Electrical
Diagnosis, Fuel System
Diagnosis, Fuel Injector Test.

Excessive Exhaust Emissions or
Odors

1. OBD system check.
2. Emission test.
3. Cooling system.
4. Fuel system diagnosis.
5. Fuel injector test.
6. Injector system.
7. MAP output check.

Exhaust Diagnosis, Calibration
ID/Service Bulletins

Dieseling, Run-On

1. OBD system check.
2. Careful visual/physical inspection.
3. Fuel system diagnosis.

6E–201

4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS

On–Vehicle Service

 Camshaft Position (CMP)

Sensor

Removal Procedure

1. Disconnect the negative battery cable.
2. Disconnect the electrical connector to the CMP

sensor.

035RW071

3. Remove the CMP sensor retaining bolt from the

cylinder head cover.

035RW075

Inspection Procedure

1. Inspect the sensor O-ring for cracks or leaks.
2. Replace the O-ring if it is worn or damaged.
3. Lubricate the new O-ring with engine oil.
4. Install the lubricated O-ring.

Installation Procedure

1. Install the CMP sensor in the cylinder head cover.
2. Install the CMP sensor retaining bolt.

Tighten

D

Tighten the retaining bolt to 9 N·m (78 lb in.).

035RW075

3. Connect the electrical connector to the CMP sensor.

035RW071

4. Connect the negative battery cable.

 

 

 

 

 

 

 

Content   ..  1399  1400  1401  1402   ..