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  #11  
Old 12-10-2007, 08:23 PM
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Mark Rinker Mark Rinker is offline
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The PTO switch does override the high idle. Thanks for the info, DMax its always fun to learn a new trick...
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  • Total GM diesel miles to date : ~950K
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  #12  
Old 12-19-2007, 01:19 PM
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Just for grins, I turned mine on. It's actually sort of neat. Definitely speeds up the warming. Before it really didn't make sense to let it warm up because it didn't warm up. Now it does. And the whistle is sort of cool, too!
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  #13  
Old 02-14-2008, 12:57 AM
murphyslaw murphyslaw is offline
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my '05 5500 lly does the same thing. when I start it it runs for a min then bumpes up to 1200-1500rpm until it reaches normal temp then drops to normal idle. if it cools off(idling in -20) it will bump back up to make heat. I thought it was a bit fast for a cold motor to, but its a normal thing so I figured oh well.
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  #14  
Old 02-17-2008, 10:09 AM
Braveheart Braveheart is offline
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Default You can turn it off.

You can turn this feature on and off I believe...I remember seeing something in the manual about it. My 07 C4500 does the same thing.
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  #15  
Old 01-13-2009, 12:58 PM
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Mark:

did you ever figure out how to disable this?

Try this:

Key on engine off.

Depress the accelerator to the floor and hold it.

Apply the brake 3 times in 8 seconds.

Release the accelerator and start the engine.

(Hope I got it right...)

This will toggle the feature on and off on the 2006 2500/3500 without DIC.
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"Need" - Wanting to get someone else's money.
"Greed" (formerly meant what "need" means today) - wanting to keep your own.
"Compassion" - a politician's willingness to arrange the transfer.
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Gone but not forgotten: '87 F350 7.3, '91 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6
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