Workshop Manual for ISUZU 4J Series NHR NKR NPR

Workshop Manual for ISUZU 4J Series NHR NKR NPR

Before using this Workshop Manual to assist you in performing vehicle service and maintenance operations, it is recommended that you carefully read and thoroughly understand the information contained in Section 0A under the headings “GENERAL REPAIR INSTRUCTIONS” and “HOW TO USE THIS MANUAL”.

All material contained in this Manual is based on the latest product information available at the time of publication.
All rights are reserved to make changes at any time without prior notice.

This Manual Applicable Model : NHR55. NKR55. NPR55. NPR69

ISUZU Workshop Manual 4J Series NHR NKR NPR SECTIONS

SECTION NO.

CONTENTS

00

Service Information

6A

Engine Mechanical

6A1

4JB1/4JB1T/4JB1-TC/4JG2 Engine

6B

Engine Cooling

6C

Fuel System

6D

Engine Electrical

6E

Exhaust Gas Recirculation (EGR) System

6F

Exhaust

6G

Turbocharger

 

ISUZU Workshop Manual 4J Series NHR NKR NPR Table of Content

Hard Starting

00 -

3

Starter Inoperative

00 -

3

Starter Motor Operates but Engine Does Not Turn Over

00 -

3

Engine Turns Over but Does Not Start

00 -

4

Quick-on Start System

00 -

5

Unstable Idling

00 -

6

Insufficient Power

00 -

7

Excessive Fuel Consumption

00 -

9

Excessive Oil Consumption

00 -

9

Overheating

00 -

10

White Exhaust Smoke

00 -

10

Dark Exhaust Smoke

00 -

11

Oil Pressure Does Not Rise

00 -

11

Abnormal Engine Noise

00 -

12

Engine Knocking

00 -

12

Gas Leakage Noise

00 -

12

Continuous Noise

00 -

12

Slapping Noise

00 -

13

Engine Cooling Trouble

00 -

14

Engine Electrical Part Trouble

00 -

15

Turbocharger

00 -

20

Lubrication Chart

00 -

29

 

STARTING

1. STARTER INOPERATIVE

Checkpoint

Possible cause

Correction

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

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

Clean and/or retighten the battery cable terminal

Poor connections due to rusting

Recharge or replace the battery

Battery discharged or weak

Recharge or replace the battery

Fan belt loose or broken

Adjust or replace the fan belt

Starter

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 seizure, or other damage

Repair or replace the related parts

 

Readmore and Workshop Manual for ISUZU 4J Series NHR NKR NPR

Title : Workshop Manual for ISUZU 4J Series NHR NKR NPR
Format : PDF
Pages : 406 Pages
Language : English
File Size : 10 MB

 

Workshop Manual for ISUZU 4J Series NHR NKR NPR