Engine/Transmission (1998.5 - 2002) Smarty and high idle TSB 18-019-01

[isb360]

I had my ECM reflashed a few years ago to supposedly incorporate the high idle TSB, but it didn't "take" and I have no such high idle feature in my truck. My buddy with his '01 needed two reflashes at the dealer for it to "take".



Question: will I now have this feature enabled since I am running with Smarty?



Thanks

Tim

 

[Bob Wagner]

yes high idle is enabled in all softwares

 

[Sea01Cummer]

Bob at what temp does the idle get affected? I would like ti know so i can tell if mine is working.



Steve

 

[SnoKing]

Cold idle engine warming.

This bulletin involves selectively erasing and reprogramming the Engine Control Module with new software. This bulletin applies to all Ram trucks built after December 17, 1997 equipped with the 24-valve 5. 9L Cummins diesel engine.



Extended idle operation, especially in cold weather, can allow varnishes/oils to condense on the exhaust valve stems, leading to stuck valves, and damaged valve train components. The repair procedure involves calibration software that will activate when certain parameters are met, reducing the chance of valve sticking as well as improving cab heat warm-up time. Idle speed will slowly ramp up from 800 rpm to 1200 rpm when all of the following conditions are met:

* Intake Manifold Temperature less than 60°C (32°F)

* Coolant Temp is less than 60°C (140°F)

* The transmission is in Neutral or Park

* The Service Brake pedal is not depressed

* Throttle = 0%

* Vehicle Speed = 0 mph



If intake manifold temperature (IMT) is less than -9°C (15°F), three of the cylinders will be shut off upon reaching 1200 rpm, creating a slight change in engine sound which is normal. Thus the engine has to work to overcome the three “dead” cylinders. This allows the engine to create increased heat in the cooling system, allowing more rapid warm up.



Either feature will abort when any one of the following occurs:

* The automatic transmission is placed in gear (forward or reverse)

* The service brake pedal is depressed

* Throttle position is greater than 0%

* Vehicle speed greater than 0 mph

* Coolant temperature is greater than 79°C (175°F)





Hang onto your shorts the first time you hear it go into three cylinder idle.



SNOKING

 

[Mr. C]

The hi-idle worked on mine last winter, it kinda surprised me when it ramped up. The D/C shop here tried to enable it 3 times and it wouldn't take, with Smarty it's a done deal