GM/Detroit 6.5L ENGINE CONTROLS – Glow Plug Relay Replacement

Removal Procedure

1. Remove the negative battery cables.
2. Release the wiring harness connector at the glow plug relay.
3. Remove the glow plug wiring harness nuts and harness.

4. Remove the relay mounting nuts.

5. Remove the glow plug relay by lifting it off the mounting studs.

Installation Procedure
1. Install the glow plug relay on the mounting studs.

Notice: Refer to Fastener Notice in Cautions and Notices.
2. Install the glow plug relay mounting nuts.
Tighten
Tighten the nuts to 42 N-m (31 lb ft).

3. Install the wiring harness connector to the relay.
4. Install the glow pl ug wiring harness and nuts.
Tighten
Tighten the nuts to 5 N-m (44 lb in).
5. Install the negative battery cables.

 

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