OK, I had my truck re-programmed for the high idle feature per TSB 18-019-01. Idle speed increase enabled, 3 cylinder shut-off disabled. Last night I intentionally did not plug in the block heater so everything would be nice and cold this morning. Woke up to single digit temp this morning and went outside to warm the truck up. I set the p-brake, dropped the tranny into neutral, and fired her up... she was pretty cranky, very rough and billowing white smoke. Went back in the house went about my business, came back out about 10 or so minutes later and she was running much smoother, but when I hoped inside, the engine was still running at just above 800 RPM.

So how long does it have to idle before the speed increase kicks in? or should I consider myself included in the "idle speed increase no worky" clan?

 

From what ive heard it should have kicked in and sped up rite away, but I dont know for shure because I havent had mine done yet.

 

I've contacted a couple people through PM's since nobody was posting up any public info and the consensus is that it should kick in after about a minute of idling. Mines is not working.... parked outside in single digit temps for about 12 hours and idle speed never changes. I've left it off the plug for two days now to try the idle feature. Looks like I'll be calling my dealer......

 

Should kick in 60-90 seconds after starting. I had to print out a copy of the TSB and take it down to the dealer and stand over the techs. shoulder to make sure it was finally done right. They had never heard of it....

Justin

 

Had the same experience last week and took to dealer. My dealer is good on service, and after checking the ECM, they called me back to ask if I had any brakes, accelerator, etc. on. I told them the parking brake was set, and they told me that ANY pedal that is depressed will disengage the high idle. This ins't good for us manual transmission guys, but I haven't contacted DC yet to see why the programming would include the parking brake. I'll let you know when I get a reply from them directly. HTH.

 

I'm going to have to call BS on that one. Like you said, if you had a manual tranny, you'd have to chock the wheels. The TSB clearly says "SERVICE BRAKES" not parking brake. I think they were just looking for an out to shuck the monkey off their back. I did think about that though this morning and instead of putting the tranny in neutral in setting the p-brake, I left it in park and still no idle speed increase.

I called my dealer about it and he is going to pull the TSB again and look at some stuff and get back with me.

 

Yep, that didn't sound to sharp to me either, but they have been very good on all warranty and other work, and I have a good relationship with them so I'm willing to give them the benefit of the doubt until I can verify otherwise. Of course, it hasn't been cold here since then, so I haven't been able to test this (my driveway is flat so I can leave no parking brake on and let her idle in neutral). I'm still going to contact DC directly to see what the deal is with this though.

 

FYI, they have to turn on the 3 cylinder feature to make the TSB work. You can NOT have just high idle without the 3 cylinder part. Go back to the dealer. SNOKING

 

Darn... dang... doody... I don't like the idea of running 3 cylinders without fuel in them, but if this is true, I'll have to live with it.

 

I'll have to wave the BS flag on that one too. Mine is a 6-speed and it works fine w/ the p-brake on or off.


I believe this is incorrect also - My hi idle was enabled when the truck was in Alaska, and it worked fine. I didn't have the 3 cyl. feature enabled till I got up here. The 3 cyl. feature has to be enabled seperately from the high idle, but you have to have the high idle enabled in order for the 3 cyl. to work.

Justin

 

ammo5797

Read the TSB. Mine would not work last winter, this winter it does. TSB clearly states that you have to turn on the 3 cylinder part to enable it. Many Many people are having trouble getting this feature enable. SNOKING

 

Repair Procedure:

1. Log onto the MDS2 (Mopar Diagnostic System).

2. Connect the MDS2 and DRBIII to the vehicle and switch the ignition key to"ON".

NOTE: AUTO CONNECTION WILL OCCUR ONCE THE DRB III, MDS2, AND VEHICLE ESTABLISH COMMUNICATION. THE "CANNOT READ VIN FROM DRB III" MESSAGE (ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE "OK" BUTTON ON THE MDS2 TO REQUEST A L4DS2 SESSION FOR THE VEHICLE VIN INDICATED. PRESS THE "OK"BUTTON WHEN ASKED TO BEGIN SESSION.

3. Push the FLASH tab on the MDS2.

4. Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2.

NOTE: A MESSAGE MAY APPEAR (AFTER STEP 3 OR 4) THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.

5. Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE.

6. The MDS2 and DRB III will prompt for any operator action needed during the remainder of the reprogramming process.

NOTE: DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (EATX, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE. ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED.

NOTE: ONCE THE VEHICLE HAS BEEN REPROGRAMMED TO THE PROPER SOFTWARE LEVEL, YOU MUST USE THE DRB III TO ENABLE THE 3 CYLINDER IDLE FEATURE. TO DO SO FOLLOW THE INSTRUCTIONS BELOW.

7. Connect the DRB III to the vehicle without connecting to MDS2 and follow the menu structures it appears below.

8. MAIN MENU - 1998 - 2002 DIAGNOSTICS

9. 1998 - 2002 DIAGNOSTICS - ALL (EXCEPT BELOW)

10. SELECT SYSTEM - 1 ENGINE

11. CONTROLLER TYPE - 1 CUMMINS (ECM/ENGINE)

12. SELECT FUNCTION - 1 MISCELLANEOUS (Misc. is on second page)

13. 3.3 CYLINDER IDLE - Follow the instructions

The DRB III will indicate whether the feature is enabled or disabled.
14. Push 1 to Enable, 2 to Disable.

15. You are instructed to cycle the ignition to complete the repair.

16. Press Page Back to Exit.

NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW.

17. Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Fig. 1). Attach the label to the PCM and cover the label with the clear plastic overlay.

 

I'll have to wave the BS flag on that one too. Mine is a 6-speed and it works fine w/ the p-brake on or off.


I believe this is incorrect also - My hi idle was enabled when the truck was in Alaska, and it worked fine. I didn't have the 3 cyl. feature enabled till I got up here. The 3 cyl. feature has to be enabled seperately from the high idle, but you have to have the high idle enabled in order for the 3 cyl. to work.

Justin

 

I got the reflash early on. No high idle. Last spring I went back to a different dealer and he turned on 3 cylinder like it says in TSB and now I have both. Has to be really cold for 3 cylinder feature to work. For that fact DC has come up with this feature for extreme conditions. It has to be a bit below 32 for all night for high idle. I can get snowmobiling all day with the truck in the mountains and it will not come on when I return. Over night if it is cold yes. FYI, TSB says nothing about turning on one part without the other. SNOKING

 

I have a copy of the TSB and I understand what you are saying. There are discrepancies in the TSB though, they say it will not work if the truck has been plugged in, which is wrong. I've had mine plugged in every night this week, the hi's haven't gotten over -23 this week, it's been down to -40 at night. When I start it in the morning, still plugged in, the 3 cyl kicks in. At -40 the block heater doesn't warm it enough to get the coolant over the required 140 degrees, it just aids in starting and warming faster. Maybe there are some differences in the programs they put in the computers, I don't know. I do know that my hi idle worked fine as a stand alone program and the 3 cyl had to be enabled seperately. Both were available in my ECM, the hi idle was enabled and the 3 cyl disabled.

Justin