1998 OPEL FRONTERA radiator

6E–203 4JX1–TC ENGINE DRIVEABILITY AND EMISSIONS
Engine Coolant Temperature
(ECT) Sensor
Removal Procedure
NOTE: Care must be taken when handling the engine
coolant temperature (ECT) sensor. Damage to the ECT
sensor will affect proper operation of the fuel injection
system.
1. Disconnect the negative battery cable.
2. Drain the radiator coolant. Refer to
Draining and
Refilling Cooling System
in Engine Cooling.
3. Disconnect the electrical connector.
4.Remove the ECT sensor from the front side of the
intake manifold.
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Installation Procedure
1. Apply sealer (LOCTITE 262) or the equivalent to the
threads of the ECT sensor.
2. Install the ECT sensor in the front side of the intake
manifold.
Tighten
Tighten the ECT sensor to 19 Nꞏm (14 lb ft.).
3. Connect the electrical connector.
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4. Fill the radiator with coolant. Refer to Draining and
Refilling Cooling System
in Engine Cooling.
5. Connect the negative battery cable.
Intake Air Temperature (IAT)
Sensor
Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the electrical connector from the IAT
sensor.
3. Remove the IAT sensor from the intake air duct by
using a rocking motion while pulling the sensor.
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7A–11 AUTOMATIC TRANSMISSION (4L30–E)
Fluid Condition
FLUID CONDITION
NORMAL*CONTAMINATED
COLORRED OR LIGHT
BROWNBROWNNON–TRANSPAR-
ENT / PINKBROWN
DRAIN RE-
QUIRED?NOYESYESYES
CONTAMINA–
TIONNONEVery small amount of
foreign material in bot-
tom of panContamination by cool-
ant or other sourceLarge pieces of metal
or other foreign materi-
al in bottom of pan
CORRECT
LEVEL AND
CONDITION
1. LOW LEVEL:
A. Add fluid to
obtain proper
level & check for
external leaks.
B. Correct cause of
leak.
2. HIGH LEVEL:
– Remove excess
fluid– Remove both pans
– Change filter
– Flush cooler
– Add new fluid
– Check level– Repair/replace
radiator cooler
–Transmission
overhaul required
– Check for:
Damaged plates
and seals
Contaminated
solenoids
– Flush cooler
– Add new fluid
– Check level
–Transmission
overhaul required
– Flush cooler and
cooler lines
– Add new fluid
– Check level
*Fluid should be changed according to maintenance
schedule.
Te s t D r i v i n g
Some 4L30–E automatic transmission complaint will
require a test drive as a part of the diagnostic procedure.
Some codes will not set unless the vehicle is moving. The
purpose of the test drive is to duplicate the customer’s
complaint condition and set a current Powertrain Control
Module (PCM) trouble code. Perform this procedure
before each 4L30–E automatic transmission repair, and
again after repairs are made.
IMPORTANT:
Duplicate the condition under which the customer’s
complaint was observed.
Depending on the complaint, the line pressure gauge
and the scan tool may be required during the test
drive.
During the test drive, it is important to record all
necessary data from the areas being monitored, for
use in diagnosis. Also listen for and note any unusual
noises.
The following procedure should be used to test drive
4L30–E automatic transmission complaint vehicles:
1. Turn the ignition ON without starting the engine.
Check that the “CHECK TRANS” lamp comes on for
approximately 2 to 3 seconds and then goes out and
remains out.
If the lamp is flashing, GOTO Check Trans Indicator
in Transmission Control System (4L30–E) section.
If no serial data is present, GOTO OBD System
Check. Refer to Driveability and Emissions in
Engine section.
If the lamp stays ON or stays OFF, GOTO “Check
Trans” Check in Transmission Control System
(4L30–E) section.
2. Drive the vehicle. During the test drive, be sure that
the transmission achieves normal operating
temperature (approx. 20 minutes).
Allow the transmission to go through all of its gear
ranges, checking shift timing and firmness. Duplicate
the owner’s complaint condition as closely as
possible during the test drive.
3. If, during the test drive, the “CHECK TRANS” lamp
comes on, use the scan tool to check for trouble
codes.
4. If, during the test drive, a problem is felt, but the
“CHECK TRANS” lamp does not come on and no
trouble codes are present, drive the vehicle with the
PCM disconnected (manually shifting the vehicle).
In Manual L, the vehicle operates in first gear.
In Manual 2, the vehicle operates in third gear.
In Manual 3 or “D”, the vehicle operates in fourth
gear.
If the problem still exists with the PCM disconnected,
refer to Mechanical/Hydraulic Diagnosis in this
section.
5. If no problem has been found at this point, check all
underhood connections that supply power to the PCM
and ignition fuses. Physically and visually inspect all
the PCM harness connectors for loose or corroded
terminals. Inspect the PCM ground points.

8A–4LIGHTING SYSTEM
Headlight
Headlight and Associated Parts
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Legend
(1) Radiator Grille
(2) Front End Lower Panel
(3) Headlight Assembly
(4) Headlight(5) Headlight Rim
(6) Headlight Bulb
(7) Rear Cover
(8) Bracket
(9) Front Combination Light
Removal
1. Disconnect the battery ground cable.
2. Remove the screw and pull out the two projecting
portions on the fender to remove the front
combination light.
3. Remove five clips and two screws to remove the
radiator grille.
4. Remove two screws to remove the front end lower
panel(2).
5. Remove two bolts and two nuts to remove the
headlight assembly (with bracket).
6. Remove the headlight bulb.
7. Remove two screws, two nuts and the spring for the
headlight aim adjustment to remove the bracket.
8. Remove four screws to remove the rear cover.
9. Remove the headlight rim.
10. Remove the headlight.
Installation
To install, follow the removal steps in the reverse order.
CAUTION: After installing the headlight, be sure to
adjust the headlight aim.
Headlight Adjustment
Preparation
Place the unloaded vehicle on a level surface and check
to see if the inflation pressure of the tires is correct, the
lenses are clean, and the battery is sufficiently charged.
Adjust the aim with the headlight tester, if necessary.
When adjusting, follow the procedure of the tester
manufacturer’s.
801RS009

8F–1 BODY STRUCTURE
BODY AND ACCESSORIES
BODY STRUCTURE
CONTENTS
Service Precaution 8F–3. . . . . . . . . . . . . . . . . . . . . .
Frame 8F–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8F–3. . . . . . . . . . . . . . . . . . . . . .
Frame Dimensions (L W B) 8F–4. . . . . . . . . . . . . . .
Frame Dimensions (S W B) 8F–5. . . . . . . . . . . . . . .
General Description 8F–6. . . . . . . . . . . . . . . . . . . . .
Front Bumper 8F–6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–6. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Bumper Slider Bracket 8F–7. . . . . . . . . . . . . .
Removal 8F–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Bumper 8F–8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–8. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location (W/Rear Combination Light
and License Light) 8F–10. . . . . . . . . . . . . . . . . . . .
Removal 8F–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location (W/Rear Combination Light) 8F–12
Removal 8F–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Bumper Slider 8F–14. . . . . . . . . . . . . . . . . . . . .
Removal 8F–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8F–15. . . . . . . . . . . . . . . . . . . . .
Cowl Cover 8F–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–15. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Hood 8F–16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bulge 8F–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–17. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–17. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Hood Hinge 8F–18. . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–18. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–18. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Hood Lock 8F–19. . . . . . . . . . . . . . . . . . . . . . . Parts Location 8F–19. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Grille And Front End Lower Panel 8F–20.
Parts Location 8F–20. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–21. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Fender Panel 8F–22. . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–22. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Body Mounting 8F–24. . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–24. . . . . . . . . . . . . . . . . . . . . . . .
Removal (No.1 – No. 2) 8F–24. . . . . . . . . . . . . . . .
Removal (No. 3 — No. 6) 8F–25. . . . . . . . . . . . . . .
Installation 8F–26. . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 8F–27. . . . . . . . . . . . . . . . . . . . .
Body Dimension 8F–28. . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel Assembly 8F–48. . . . . . . . . . . . . . .
Parts Location 8F–48. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–49. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–53. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cross Beam Assembly 8F–54. . . . . . . . . . . . . . . . . . .
Parts Location 8F–54. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–54. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–55. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Door Assembly 8F–56. . . . . . . . . . . . . . . . . . . .
Parts Location 8F–56. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–56. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–56. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Door Assembly 8F–57. . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–57. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–57. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–58. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Strikers 8F–58. . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment 8F–58. . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Check Arm Assembly (Front & Rear) 8F–59. .
Parts Location 8F–59. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 8F–60. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Window Regulator, Glass And Glass
Run 8F–60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Location 8F–60. . . . . . . . . . . . . . . . . . . . . . . .
Removal 8F–60. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8F–19 BODY STRUCTURE
Engine Hood Lock
Parts Location
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Legend
(1) Hood Lock Control Lever
(2) Control Cable(3) Engine Hood Lock Assembly
(4) Radiator Grille
(5) Inner Liner
Removal
1. Remove hood lock control lever.
2. Remove inner liner.
3. Remove control cable.
Remove the cable fixing clips from the body panel.
4. Remove radiator grille.
Refer to Radiator Grille And Front End Lower Panel
in this section.
5. Remove engine hood lock assembly.
Apply setting marks (1) to the hood lock assembly
and the body prior to removal.
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8F–20BODY STRUCTURE
Installation
To install, follow the removal steps in reverse order noting
the following points:
1. Reroute the control cable to its original position, and
check and see if the lock assembly and control lever
work normally.2. Tighten the hood lock assembly fixing bolts to the
specified torque.
Torque : 10 Nm (1.0kgꞏm/87 lb in)
Radiator Grille And Front End Lower Panel
Parts Location
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Legend
(1) Front End Lower Panel(2) Head light Wiper
(3) Radiator Grille
Removal
1. Open the hood.
2. Support the hood.
3. Remove headlight wiper.
Refer to Wiper/Washer System in this section.

8F–21 BODY STRUCTURE
4. Remove radiator grille.
Raise the clips (1) on the radiator grille and remove
two screws.
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5. Remove front end lower panel.
Remove two fixing bolts and remove the panel from
the fender.
Installation
To install, follow the removal steps in reverse order, noting
the following point.
1. Install the radiator grille clips remaining on the body
side in the radiator grille, and then install the radiator
grille on the body.

6A–11
ENGINE MECHANICAL
Condition CorrectionPossible cause
Engine overheatingLevel of Engine Coolant too lowReplenish
Fan clutch defectiveReplace
Incorrect fan installedReplace
Thermostat defectiveReplace
Engine Coolant pump defectiveCorrect or replace
Radiator cloggedClean or replace
Radiator filler cap defectiveReplace
Level of oil in engine crankcase too
low or wrong engine oilChange or replenish
Resistance in exhaust system
increasedClean exhaust system or replace
defective parts
Throttle Position Sensor adjustment
incorrectReplace with Throttle Valve ASM
Throttle Position Sensor circuit open
or shortedCorrect or replace
Cylinder head gasket damagedReplace
Engine overcoolingThermostat defectiveReplace (Use a thermostat set to
open at 82
C (180F))
Engine lacks compression————Refer to Hard Start
OthersTire inflation pressure abnormalAdjust to recommended pressures
Brake dragAdjust
Clutch slippingAdjust or replace
Level of oil in engine crankcase too
highCorrect level of engine oil
Exhaust Gas Recirculation Valve
defectiveReplace
Engine Noisy
Abnormal engine noise often consists of various noises
originating in rotating parts, sliding parts and othermoving parts of the engine. It is, therefore, advisable to
locate the source of noise systematically.
Condition
Possible causeCorrection
Noise from crank journals or from
crank bearings
(Faulty crank journals and crankOil clearance increased due to worn
crank journals or crank bearingsReplace crank bearings and
crankshaft or regrind crankshaft and
install the undersize bearing
yj
bearings usually make dull noise that
becomes more evident when
accelerating)Crankshaft out of roundReplace crank bearings and
crankshaft or regrind crankshaft and
install the undersize bearing
Crank bearing seizedCrank bearing seized. Replace crank
bearings and crankshaft or regrind
crankshaft and install the undersize
bearing
Troubleshooting Procedure
Short out each spark plug in sequence using insulated
spark plug wire removers. Locate cylinder with defectivebearing by listening for abnormal noise that stops when
spark plug is shorted out.