Hemiproduction
V6 Member
Posts: 216
Registered:
11/2/06
Status:
Offline
From: AB
Truck: 2006 3500
Mods: 9
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10/17 9:20a
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When it is cold out and i start my truck, after a few mins the idle jumps to 1000rpm. When it does this it sounds as if it is missing. But if it is not plugged in and i start it on a cold day (-10c) it will jump to 1000rpm instantly and it is running smooth. Now if truck is sounding as if it is missing i can turn on the second high idle throu the cruise and it smooths right out as well. Anyone have any ideas why it does this.
My truck is a 2006 3500 AT 4x4 CTD
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MoparTechnician
HEMI Member
Posts: 3,449
Registered:
4/2/06
Status:
Online
From: NE
Truck: 2002 2500
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10/17 11:59a
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sounds pretty normal, question is, how much do you idle it at regular idle and when you are driving put a little load on it around 1750 rpms and see if you can hear a slight injector knock, it will have like a 12 valve sound.
mopar
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Hemiproduction
V6 Member
Posts: 216
Registered:
11/2/06
Status:
Offline
From: AB
Truck: 2006 3500
Mods: 9
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10/20 9:48a
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If its cold outside i try not to idle more then 10mins, i didn`t hear anything at 1750 with a load on it.
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MoparTechnician
HEMI Member
Posts: 3,449
Registered:
4/2/06
Status:
Online
From: NE
Truck: 2002 2500
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10/20 11:47a
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you should treat a 3rd gen or newer truck just as if it had a gas engine, the only time you should let it idle is when you are cooling off the turbo when you have been on it hard or pulling and you shouldn`t have to idle more than a couple of mins to get the egts down
mopar
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Hemiproduction
V6 Member
Posts: 216
Registered:
11/2/06
Status:
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From: AB
Truck: 2006 3500
Mods: 9
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10/20 6:42p
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I try to get the idles to a min, avg cool down time is around 30sec to 1.5min. I drive it pretty nice. try to keep the RPM`s under 2000
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Kronic
V6 Member
Posts: 114
Registered:
10/12/07
Status:
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From: AB
Truck: 2003 3500
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10/21 2:15p
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Mine does the same thing, sounds horrible. I dump in some fuel treatment and it helps a little but I usually let mine warm up around 1200rpm, 1300-1350rpm if its -20 or colder. I also change my fuel filter every oil change.
Kronic
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Hemiproduction
V6 Member
Posts: 216
Registered:
11/2/06
Status:
Offline
From: AB
Truck: 2006 3500
Mods: 9
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10/21 2:30p
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Mine gets a lil better as well when i put conditioner in it. I also change my fuel filter every oil change.
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Kronic
V6 Member
Posts: 114
Registered:
10/12/07
Status:
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From: AB
Truck: 2003 3500
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10/22 11:16a
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Not sure then, my dad also has a 05 and it does it a little as well but he doesn`t have near as many km`s as I have. My 2003 never did it at all, but they have different programming for injection as well.
Where abouts to you live in AB?
Kronic
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Hemiproduction
V6 Member
Posts: 216
Registered:
11/2/06
Status:
Offline
From: AB
Truck: 2006 3500
Mods: 9
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10/24 11:04a
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I live out by Rocky Mtn. House, and urself?
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Kronic
V6 Member
Posts: 114
Registered:
10/12/07
Status:
Offline
From: AB
Truck: 2003 3500
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10/26 5:45a
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Grande Prairie.
Kronic
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Joe Diesel
V8 Member
Posts: 475
Registered:
2/21/03
Status:
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From: ON
Truck: 2002 2500
Mods: 19
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11/2 12:00p
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Its called the 3cyl high idle. When the coolant is at a certain temp(i dont remember what rite now) it will increase the rpm and go into 3cyl idle its a feature that can be turned off by the dealer. and yes it sounds like it will shake the bolts rite off the engine. 01 & up have it but it usually has to be turned on.
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