Seeing a few posts and hearing things through the grapevine about the emission stuff making it so the truck should not be idled for more then 2 minutes!?

Some trucks have a fast idle feature but is that only available on trucks with autos?

This is a problem for me as I LIVE IN AZ AND ITS 100+ DEGREES ALL DAMNED SUMMER

I would ask about the supposed emission bypass stuff but dont want to get banned....but you can pm me if you like

 

I've learned that the high idle feature CAN be implemented on trucks with the manual transmission by grounding a certain wire at the computer plug (someone else can explain how). This alleviates the need for a switch to be installed on the clutch pedal as would be the case...pretty expensive, too! Grounding that wire makes more economic sense.

2007.5 Dodge Ram 3500/6.7 CTD/SRW/SB/4X4/6-speed man/Big Horn Edition/16k Husky manual slider hitch

 

Yes, you can let it idle. It will regen more often and use even more fuel. It kind of depends on how you use it to. If you drive it far enough each time to complete a regen (20-40miles), then you can idle longer. It's hard to explain, but if your truck just got done with a regen, you could let it idle longer than if you stopped the truck just before it wanted to regen. The you would not be able to idle very long.

 

See discussions at http://www.cumminsforum.com/forum/

 

BigBlock....I think your info is wrong. The owners manual for the 6.7 tells you to avoid ideleing and having had to replace NUMEROUS DPF's on 2 company trucks due to idleing, I and the techs we dealt with can attest to that!

Do not let a 6.7 idle without the high idle enabled

 

I never saw the msg CATALYST 80% until I idled my truck for 6 hours one night.
Had the high idle set at around 1100 rpm. I agree, it has to have the e-brake on and the idle up. The msg was gone after only a few minutes down the highway.

Different beast these 6.7's but we are learning.

Scotty

 

What part of the info is wrong?

I didn't say you can idle it forever, just that the amount of time you can idle depends upon how loaded up your dpf is before you start idling.

I also don't believe having your high idle engaged is going to allow you to idle longer or keep your dpf clean.

I've posted many times not to idle your 6.7L at all if you can help it. It just wastes fuel and contributes to more frequent regens with the potential to damage the dpf (as you've experienced).

 

I idled mine all darn summer as I irrigated tobacco. Too hot to sit in the sun all day. So I kicked back and watched tv in the ac of my truck. I now have 18,567 miles on it with never seeing any message about catalysts being anything. I also run the daylights out of it hooked to my gooseneck alot. I turn on the e-brake as soon as I fire it up and leave it on when driving.

 

I was at the dealer yesterday and they had about 1 out 3 trucks setting there idling. I should have asked them why but it makes no sense.
???
So it can't be that bad if the dealer is doing.