ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide

When you need to replace new or used EGR valve,you need to remove and install EGR valve and cooler.Here comes the steps on how to remove and install EGR valve and cooler for ISUZU Euro 4 N series truck with 4JJ1 engine.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (1)

 

Related Contents:

ISUZU IDSS Diagnostic Tool

2023 2019 Isuzu G-IDSS Diagnostic Software Free Download (Troubleshooting Guide Included)

 

Procedures:

1.Drain the engine coolant.

2.Remove the AC generator.

3.Remove the engine cover.

4.Remove the fan guide bracket right.

5.Remove the exhaust adaptor and turbocharger water return pipe.

6.Remove the degassing hose.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (2)

7.Remove the degassing pipe.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (3)

8.Remove the heat protector.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (4)

9.Remove the EGR cooler.

Remove the(IN) and(OUT) rubber hoses of the water pipe, and remove the EGR cooler and the gasket.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (5)

10.Remove the EGR valve connector.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (6)

11.Remove the EGR valve.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (7)

 

Installation

If the procedures or methods for assembling the EGR device are mistaken, that can lead to cracks of pipe or gas leaks. Always follow the procedures.

1.Install the EGR valve.

Tightening torque:27 N-m(2.8kg-m/20 lb-ft)

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (8)

2.Install the EGR valve connector.

3.Install the EGR cooler.

a.Attach the gasket and the EGR cooler, and temporarily tighten them in the order specified in the diagram.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (9)

b.Securely tighten them at the specified torque in the order as shown in the diagram.

Tightening torque: Nuts, Bolts(1)-(5)27 N·m(2.8kg-m/20 lb-ft)

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (10)

4.Install the (IN) and (OUT) rubber hoses of the water pipe.

Install the rubber hose(IN) so that it does not interfere with the exhaust manifold heat protector.

5.Install the heat protector.

Tightening torque:25 N-m(2.5kg-m/18 lb-ft)

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (11)

6.Install the degassing pipe.

a.Attach the degassing pipe, and temporarily tighten them in the order specified in the diagram.

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (12)

b.Securely tighten them at the specified torque in the order as shown in the diagram.

Tightening torque Nuts, Bolts

(1),(3),(4),(5):10N-m(1.0kg-m/87 lb-in)

Nut(2):25N-m(2.5kg-m/18 lb-ft)

ISUZU 4JJ1 Euro 4 N Series Truck EGR Valve Removal and Installation Guide (13)

7.Install the exhaust adaptor and turbocharger water return pipe.

8.Install the fan guide bracket right.

9.Install the engine cover.

10.Install the AC generator.

11.Refill the engine coolant.

For more guide about ISUZU,please refer to:ISUZU Trouble Repair.

Visited 1 times, 1 visit(s) today