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01 Duramax Tach wire

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=84560
Printed Date: July 06, 2025 at 11:48 PM


Topic: 01 Duramax Tach wire

Posted By: jon4224
Subject: 01 Duramax Tach wire
Date Posted: October 24, 2006 at 2:39 PM

I'm trying to install a remote starter into an 01 GMC Sierra 2500HD with a Duramax engine trouble is I have no Idea what wires behind the instrument cluster are for the tach and wait to start hookup. Any help you can give me would be great. Thanks

-Jon



Replies:

Posted By: xtremej
Date Posted: October 24, 2006 at 3:35 PM
the white wire behind the cluster is the tach.

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Posted By: xtremej
Date Posted: October 24, 2006 at 3:38 PM
on the wait to start I have been using a 528t  pulse timer from what I have heard its not a good idea to tie directly into the wait to start light in the dash.

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Posted By: gus1
Date Posted: October 25, 2006 at 4:49 PM
Use a unit that can do a timed WTS..... set it for 10sec or so.

Most of the Duramaxes I have seen have very little WTS times due to them using low voltage glowplugs.

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Wherever I go, that is where I end up......



Posted By: jon4224
Date Posted: October 25, 2006 at 6:01 PM
Thanks guys with your help I managed to get things hooked up and working


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