2004 Isuzu Ascender 2WD L6-4.2LFACTORY OEM SERVICE PROCEDURE

Liftgate Replacement



Liftgate Replacement

Removal Procedure

1. Remove the liftgate window.
2. Remove the rear quarter trim located above the tail lamps.
3. Remove the liftgate window garnish molding.
4. Remove the liftgate trim panel.

Factory service manual diagram



5. Disconnect the rear windshield washer fluid supply line.
6. Disconnect the center high mount stop lamp (CHMSL) electrical connector located behind the header panel.

Factory service manual diagram



7. Disconnect the rear windshield defogger electrical connectors (2).
8. Remove the license plate pocket.
9. Remove the lock cylinder.
10. Remove the window latch assembly.
11. Remove the window wiper assembly.
12. Remove the liftgate control module.
13. Remove the liftgate wire harness.
14. Remove the liftgate struts.
15. Mark the location of the liftgate hinges using a grease pencil or other suitable marking device.

Factory service manual diagram



16. Remove the liftgate hinge nuts with the aid of an assistant.
17. Remove the liftgate from the vehicle with the aid of an assistant.

Installation Procedure

Factory service manual diagram



1. Install the liftgate to the vehicle with the aid of an assistant.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the liftgate hinge nuts.

Tighten the liftgate hinge nuts to 20 N.m (15 lb ft).

3. Install the liftgate struts.
4. Install the wire harness to the liftgate.
5. Install the liftgate control module.
6. Install the window wiper assembly.
7. Install the window latch assembly.
8. Install the lock cylinder.
9. Install the license plate pocket.

Factory service manual diagram



10. Connect the rear windshield defogger electrical connectors (2).

Factory service manual diagram



11. Connect the rear window washer fluid supply hose.
12. Connect the CHMSL electrical connector behind the header panel.
13. Install the liftgate trim panel.
14. Install the liftgate window garnish molding.
15. Install the upper rear quarter trim, located above the tail lamp.
16. Install the liftgate window.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.