Excessive Idle Time and a PO'ed Customer

[EB]

Gee I don't know what the Max is, I like 1200 RPM but when its really hot I go up to 1400-1500 RPM. When you engage it, it starts out at 900 RPM, I'm too afraid to max it.

I don't know what the max rpm it will go on the pickup is, but on the cab and chassis it is top rpm. I've had mine up to 2800 rpm just to see how high it would go, it would have gone higher. Left it there for about a minute. It's a diesel, it's meant to run wide open. Think about all the road equipment and tractors and combines. Wide open all day long. It won't hurt it, just uses more fuel.

 

[AllianceDiesel]

the third injection has nothing to do with keeping the cylinder cool. It is used as a post injection to quiet the engine (also used with the pre-injection on the common rails, thats why they are so much quiter) and is also used to put some fuel into the turbo to burn because the turbo needs heat engergy to spin. Yes it has to do with emmissions also but that just helps burn the excess fuel also as stated before.

 

[AllianceDiesel]

Good point with the previous owner, did you buy it used.



Cp3 is another good place to look for a leak



Ive heard some stuff about the 6. 7 and dipstick issues can't remember if it was making oil or the dipstick wasn't reading right when you put 12 qts of oil in it.



If I missed any other question please tell me, I am trying to cook dinner and get on the computer at the same time.

 

[Coalsmoke]

mopar, CC trucks are as EB stated. The pickups start at about 1,000rpm and can be raised to 1500rpm. If someone tries to set it to above 1500 rpm it is supposed to kick out. Not sure why the difference, you would think that both models would be able to run like the CC is programmed to do. As it is now, mind you, of the wet packs I've installed, they were all recommended for 1250-1500 rpm so maybe its a moot point.

 

[AllianceDiesel]

Just found this, its on the chrysler dealerconnect website under the owners manual section. This is in the 6. 7 book, but the 5. 9 has something similar



NOTE: High-speed, no-load running of a cold engine can result in excessive white smoke and poor engine performance. No-load engine speeds should be kept under 1,200 rpm during the warm-up period, especially in cold ambient temperature conditions.

If temperatures are below 32°F (0°C), operate the engine at moderate speeds for 5 minutes before full loads are applied.

Engine Idling

Avoid prolonged idling, long periods of idling may be harmful to your engine because combustion chamber temperatures can drop so low that the fuel may not burn

completely. Incomplete combustion allows carbon and varnish to form on piston rings and injector nozzles. Also, the unburned fuel can enter the crankcase, diluting

the oil and causing rapid wear to the engine.

CAUTION!

Extended periods of idle time may not allow the vehicle's exhaust aftertreatment system to properly regenerate. This can lead to the illumination of the Malfunction Indicator Light (MIL) or an Electronic Vehicle Information Center (EVIC) warning message.

Operating the engine for extended periods with the MIL illuminated or an EVIC warning message displayed can cause extensive engine and exhaust system

damage.

NOTE: Your vehicle is equipped with a turbo speed limiter, this feature limits the engine speed to 1200 rpm when engine coolant temperatures are below 70°F (21°C). This feature is designed to protect the turbo charger from damage and will only operate in PARK or NEUTRAL.

 

[snidley1]

So Reading this you should not use the high idle feature when your engine tempeture Is not up?? I just wan't to know if using the high idle feature will be better for my motor when I need to leave it running. I'm a memeber of a local fire dept and some times I end up leaving my truck ideling with the lights on beside the road for extended periods.

 

[AllianceDiesel]

if its cold (engine) don't use the high idle feature about 1200 but if its warm you can max it out, 1200 is a good all around number to use, its 100 times better than just letting it idle normally.

 

[grasmo]

Does my 07. 5 6. 7 auto have this high idle feature ? ... . or is it specific to the C&C models ... ... how would I activate it? Probably been answered before .

 

[AllianceDiesel]

Every 04. 5 and newer I believe has it, its already in the computer it just needs to be activated. They should do it for free, they should actually enable it when they do the new car inspection.

 

[sag2]

Hi Folks,



I've got a 2008 2500 with 10,000 miles that has been "making oil" between oil changes. I got my oil changed at the dealer again today. I had the oil changed today, 3,936 miles since the last change, and the oil level had increased to about 1/2 inch above the plastic onto the steel cable of the dip stick.



I've talked to the dealer three times now about the oil creation issue. I got nowhere the first two times and this time he brings out this print out from the Star Center. The printout says I'm to blame as I have excessive idle. The dealer said I had 77. 836 total hours of operation and 21. 037 hours of idle, thus 56. 799 hours of NON-Idle Operation Time - yielding 27% of the operation hours at idle. At the dealer, I told him his star system had a problem as I have been listening to the guys having problems on the TDR from excessive idle with their DPF - and I just don't idle this bad boy at all. I estimate on the 10,000 total miles, at least 9,500 are pure highway miles with effectively no idle time.



The dealer said I must be wrong, as the Star System said I had 27% idle time of total operation and he says the Star System is always correct. HERE IS THE KICKER - If I have 10,060 miles and 56. 799 hours of Non-idle operation - this means I have averaged 177 MPH over the life of the truck!!!!!#@$%!



The only answer the dealer has for the "oil creation" issue is to remove the High Idle programming... ... he thinks that is the problem.



Does anybody have the "oil creation" issue and have you found a solution?

Is there possibly a computer problem given I have been found to average 177 MPH since I bought this truck!



This truck runs great, gets great fuel mileage and I have only had 1 P2000 code to date. I just can't believe that this level of oil dilution is good for the motor long term.



River-Runner

The StarScan did not lie. The total time and idle time is from the last module reset or reflash. It simply takes the information stored in the ECM since it was last reset.

 

[River-Runner]

The StarScan did not lie. The total time and idle time is from the last module reset or reflash. It simply takes the information stored in the ECM since it was last reset.

I think there is a problem. If this is from the last flash, then I've driven about 95% highway miles and I do not idle the truck - I go in 30 seconds in warm weather.



Something is wrong here... ... .....

 

[jelag]

The high idle feature is part of the ECM supplied by Cummins... remember these engines serve the class 5 & 6 market as well. . those engines often will have PTO's that need a special speed to make the pump or other item run correctly...



The high idle feature does just that... . on our new 5500 in the fitment manual for up-fitters there are 2 active connections on the ECM for switches... . one switch between one of these terminals to ground gives you one speed and the other pin gives you a second speed...



They, (dodge) have even run a wiring harness out for the up-fitters to tie into to make this a simple task for pump operation... .



River-Runer... yea we are a test bead for them... someone has to do it... like the Olds Toronodo when it was in production... but we have 30 something thousand on our 08 5500 and drive like we stole it every day at gross weight, and have had no serious problems, or any more than I'd expect on a vehicle with 20K some odd parts... .

 

[snidley1]

I dropped my truck off at the dealership last night for the oil level being to high again. This is the third dealer that has worked on this truck. One dealer has drained oil off of it twice before, and also checked the injectors. They blamed me and my idle time just like they did the founder of this thread. Just wondering what everyone else would do if they call me and say it's my fault again and the truck is fine. I would like to lemon law this thing but I don't think I have enough case yet. It has been to the dealer three times for the oil level. Once for a p245a code that cleared it's self before I got it there as well as the p2000 codes and one or two times were they forced it into regeneration. Let me know if you have any thoughts on what would be a good next step. Who to call or whatever I need to do.

 

[bruiserbob]

Idle Time-oil Level (08 Mega)

I have never idled longer than a normal stop at a traffic light, if so, I engage the "high idle" feature. Normal idle on my truck is 700 rpm. "High Idle" sets it up to 1100 rpm with the ability to increase to 1500 rpm. I currently have 11,900 miles on the clock with a 60/40 ratio of city to highway miles. I always use the exhaust brake and manually shift the 68rfe auto to keep the pm's up. I've done three oil changes and had Blackstone do an analysis on every one of them..... My oil level always rises and I have gotten a consistent reading of between 3 to 3 1/2% fuel dilution in oil..... Finally had an oxgen sensor changed at approx. 10K, then about 1K later got the dreaded EVIC showing 80% full... ... dealer cleaned turbo, replaced the DPF, etc. the truck never did run badly... ... ... . Love the truck and engine; Hate the emissions system.

 

[grasmo]

I changed my oil yesterday ... dictated by the computer ..... my oil came out thin and black had approx 2500 miles on it . I poured it back in 3 /one gallon Amsoil 5w30plastic jugs. there was an additional 3 Qts. that I had to put in another container. I always put in 12 qts. I use the dpf formula Amsoil synthetic diesel oil with the Amsoil filter. I go 10k on my 5. 9's and when the oil comes out it is still checking out good according to the oil analysis. I have not Done one on my 6. 7 because I know it is trashed... . I am an oil freak and these 6. 7 emissions make me sick... ... Why even use an extended drain oil when the egr is trashing it at 3k ???Kinda like using a Rolls Royce to haul garbage to the landfill.

 

[sag2]

I dropped my truck off at the dealership last night for the oil level being to high again. This is the third dealer that has worked on this truck. One dealer has drained oil off of it twice before, and also checked the injectors. They blamed me and my idle time just like they did the founder of this thread. Just wondering what everyone else would do if they call me and say it's my fault again and the truck is fine. I would like to lemon law this thing but I don't think I have enough case yet. It has been to the dealer three times for the oil level. Once for a p245a code that cleared it's self before I got it there as well as the p2000 codes and one or two times were they forced it into regeneration. Let me know if you have any thoughts on what would be a good next step. Who to call or whatever I need to do.

I would have an oil sample done when you are ready for the next change and see what it says. I suspect it will come back normal. After that, fill it with 11 quarts and drive it until the oil change light comes on. Then repeat the procedure until you wear it out or sell it. So far I don't know of any truck that has come back with an abnormal report. So if it were mine I would quit looking at the oil level between changes and not stress about it. In the very unlikely event something happens to the engine between normal maintenance you will get a new one.

 

[AABEN]

grasmo a Amsoil dealer told me that their filters was not approved by dodge. He said that if something went wrong with my engine they would not fix it under warranty You need to check this out with dodge---BEN

 

[AllianceDiesel]

yep amsoil filters are not approved by dodge, and can void warrenty.



Also you can't tell the condition of oil by the color.



Part Number Manufacturer

05016547AC Mopar

LF3894 Fleetguard Stratopore

LF3552 Fleetguard Microglass

LF3949 Fleetguard Cellulose

3937695 Cummins Cellulose

FL896 MotorCraft Cellulose

L45335 Purolator Cellulose

PF1070 AC Delco Cellulose

 

[grasmo]

Thanks for the info on the filters ... . I did not know this.

 

[snidley1]

Got my truck back from the shop last night, the service manager told me they couldn't find a thing wrong with the truck. So they gave me a paper explaining how the crank case holds oil or blow buy alot longer then the 5. 9. It laso had alot on it about idle timeand anything over twenty percent being to much. I ask so this is normal for these trucks he said yes and not to worry about it so Im done even looking at the dipstick between changes anymore.