I had a 02 24v 4x4 for my first Cummins and I live in Wisconsin and when it did the high idle on mine I freaked out the first time thinking my engine was bad till I looked it up 🤣it sounds cool on high idle love the sound
For those wondering On 24v 5.9s 3 cylinder high idle I believe only occurs when it begins to high idle past 1200rpm so it would be some specific circumstances for it to occur between 800-1200 rpm it idles all 6 cylinders
@@6literfuelaholic655 possibly less cooling oil capacity needed for 3 cylinder instead of all 6 but I really don’t know since normal that idle would occur when very cold I’d assume it would be to have to cool as little as possibly while still warming oil. I generally don’t have much to do with Cummins engines too much so I can’t be sure tho.
@@thetexorcist2235 makes sense, yeah ive been a 7.3 owner since i was a kid, bought my first 12 and 24 valves had them for a year and scrapped the 12 vakve and sold the 24, keot the 12 vakve engine for when my new 6.0 shits the bed though
@@6literfuelaholic655 the purpose of the 3 cylinder high idle is to warm up the engine a bit faster and creates higher egt’s by injecting the same amount of diesel with less cylinders
All you have to do is disconnect the negative battery cable from both batteries and your batteries. As long as they are good will remain at 12 V 12.4,12.6.
I believe this feature is enabled on all cummins ECM's....it's just a matter of whether the feature is enabled or not. Mine did not do this until I plugged a Smarty Tuner into it. Once I did that, it started to do it. I enable anything from the smart, all I did was plug the Smarty in and tun it to whatever level I was tuning to and it did it for me. Once I sold the Smarty and put the truck back to stock config, it kept the settings and I still have high idle.
You honestly think I don’t know that? Now had I called it a “Cummings” then one could assume I didn’t know what I was talking about. Lord have mercy though I can’t believe I referred to them as glow plugs and not grid heater. I usually despise when people do that. My apologies for wording it wrong but I do know that my truck does not have glow plugs.
It really does warm the truck up much faster. It'll stay in 3cylinder high idle up until you put your foot on the brake. It doesn't stop once engine reaches optimal temps.
@@Bigbodysquid250x No they don’t. I’ll assume you don’t live anywhere cold, I do, and can tell you 100% when the temps get close to 0 or below, you absolutely need a grid heater. No ifs ands or buts about it. Why would one willingly disable their truck, sit there and crank more than needed, when they can simply fire it up with a grid heater? Cool kids crowd?
No I meant oil pan heater. I added an oil pan heater and use that rather than the block heater because if I use the block heater than it won’t go into high idle or three cylinder motor no matter how cold it is outside
@@johnharty5757 You just might be surprised there son. I still say that unit needs some work to bring it up to snuff. But you do you, 2 yr old video, 4 months to answer. Lol
@@kenuber4014 More pride than brains I see Still haven't proven that you know a damn thing about anything I just love how all of you idiots on TH-cam that don't know anything resort to thus childish display when they have no clue about the age of the person that they are talking too I don't care how old the video is it is not like it is a news cycle I stand by the fact that you do not know shit about diesel engines keep making a fool of yourself lol
@@kenuber4014 in the future maybe you should keep your mouth shut rather than trying to impress everyone because you're not impressing every when you're just making an ass out of yourself
I guess I mislabeled the title of the video. I wasn't trying to 'show off' how well it started in the cold weather or have a peeing contest for the coldest Cummins start...I was just wanting people to hear what the high idle and 3 cylinder mode sounded like because I think it's pretty neat.
I had a 02 24v 4x4 for my first Cummins and I live in Wisconsin and when it did the high idle on mine I freaked out the first time thinking my engine was bad till I looked it up 🤣it sounds cool on high idle love the sound
Nothing smells better than a Cummins on a cool crisp morning 🤤 love seeing the exhaust pumping out as well lol 🤙😎💨💨💨
For those wondering On 24v 5.9s 3 cylinder high idle I believe only occurs when it begins to high idle past 1200rpm so it would be some specific circumstances for it to occur between 800-1200 rpm it idles all 6 cylinders
Im guessing thats what mine would do, i had no idea id always hit the brake cause it sounded like crap and i thought something was wrong
Whats the point of a 3 chlinder high idle?
@@6literfuelaholic655 possibly less cooling oil capacity needed for 3 cylinder instead of all 6 but I really don’t know since normal that idle would occur when very cold I’d assume it would be to have to cool as little as possibly while still warming oil. I generally don’t have much to do with Cummins engines too much so I can’t be sure tho.
@@thetexorcist2235 makes sense, yeah ive been a 7.3 owner since i was a kid, bought my first 12 and 24 valves had them for a year and scrapped the 12 vakve and sold the 24, keot the 12 vakve engine for when my new 6.0 shits the bed though
@@6literfuelaholic655 the purpose of the 3 cylinder high idle is to warm up the engine a bit faster and creates higher egt’s by injecting the same amount of diesel with less cylinders
All you have to do is disconnect the negative battery cable from both batteries and your batteries. As long as they are good will remain at 12 V 12.4,12.6.
Thanks for your video....
Appreciate it !!
Thats wild i never knew about the 3cyl mode. It doesnt sound good in 3cyl but i guess it helps
Oh it sounds terrible...lol...but it does help significantly.
@johnhersom6002 my 12valve goes into cyl mode too. But its just because it's too cold to fire on all six 🤣
A bit late to it but this is sick dude
I have 6x.022 injectors and a 7875 t4 over a s488 t6. I never have a issue starting my truck .
Do all the 24v have 3 cyl mode? Just bought my first one this year havent gone into winter with it yet
I believe this feature is enabled on all cummins ECM's....it's just a matter of whether the feature is enabled or not. Mine did not do this until I plugged a Smarty Tuner into it. Once I did that, it started to do it. I enable anything from the smart, all I did was plug the Smarty in and tun it to whatever level I was tuning to and it did it for me. Once I sold the Smarty and put the truck back to stock config, it kept the settings and I still have high idle.
What is the "groaning" noise that starts @ like 5:16 (shortly after the engine starts)?
I think you answered it... power steering?
Yes, that was the power steering pump. It always had a little whine but especially bad in the winter.
@John Hersom thanks! My '94 Ram 1500 did it in cold temperatures, and my '02 Ram 2500 does as well.
Funny thing is, you’d think it was low on fluid or the pump is going out…. Mine made this noise from the day I bought it for the 10 years I owned it!
You don’t have glow plugs it’s a Cummins
Mhm grid heater
You honestly think I don’t know that? Now had I called it a “Cummings” then one could assume I didn’t know what I was talking about. Lord have mercy though I can’t believe I referred to them as glow plugs and not grid heater. I usually despise when people do that. My apologies for wording it wrong but I do know that my truck does not have glow plugs.
Let’s see a -30 cold start
Give me some -30 weather and I'd be happy to
how much did you sell it for
Gave it away for $12,750
@@johnhersom6002 if only i could have been at the right place at the right time.
skip the bs to 5 minutes in
Some people are interested in seeing the entire process while others like yourself only want the dessert.
@@johnhersom6002 I'm interested in the whole meal so thank you
@@johnhersom6002facts
lol like most mint cummins
The truck is for sale.?
It was, sold it a month ago
Do you stell have the truck. ?
Sold it yesterday actually.
High idle yes, the 3 cylinder part makes no sense , I dont believe its cutting them off.
It is Cutting three cylinder to. put a load on the engine to warm it up faster. No Egr to warm it like the newer engines
Yep 3 cylinder high idle is a thing on the 2nd gen 24v engines
It really does warm the truck up much faster. It'll stay in 3cylinder high idle up until you put your foot on the brake. It doesn't stop once engine reaches optimal temps.
Well it is. Don’t believe if you don’t want, you’re wrong
Esbuena o mala
That’s not cold try -40 buddy
This is cold, -40 just aint right! We only hit that with windchill here in Iowa.
Glow plugs? Lol
What about them?
Cummins don’t have those
delete that dumb grid heater jus keep it plugged in
I guess it really depends where you live coldest we get is low 20s
That’s moronic
@@wyo_garage20 drains so much power they start fine without them
@@Bigbodysquid250x No they don’t. I’ll assume you don’t live anywhere cold, I do, and can tell you 100% when the temps get close to 0 or below, you absolutely need a grid heater. No ifs ands or buts about it. Why would one willingly disable their truck, sit there and crank more than needed, when they can simply fire it up with a grid heater? Cool kids crowd?
I have to agree with @wyo_garage. Iowa winters can be brutal and I can’t imagine trying to stay this thing without a grid heater.
@@johnhersom6002 im in california mate
That's a dirty truck! Eww.
Well I got a 1995 dodge dually that’s really dirty
😂
Don't Diesel Trucks Have Two Batteries
Yes they do. High compression requires more powerrrrr
You mean the block heater. Not oil pan heater
No I meant oil pan heater. I added an oil pan heater and use that rather than the block heater because if I use the block heater than it won’t go into high idle or three cylinder motor no matter how cold it is outside
What a pile
Thank you , appreciate it. Hope your day gets better
I see that you are a very knowledgeable experienced diesel mechanic NOT lol
@@johnharty5757 You just might be surprised there son. I still say that unit needs some work to bring it up to snuff. But you do you, 2 yr old video, 4 months to answer. Lol
@@kenuber4014 More pride than brains I see
Still haven't proven that you know a damn thing about anything
I just love how all of you idiots on TH-cam that don't know anything resort to thus childish display when they have no clue about the age of the person that they are talking too
I don't care how old the video is it is not like it is a news cycle
I stand by the fact that you do not know shit about diesel engines keep making a fool of yourself lol
@@kenuber4014 in the future maybe you should keep your mouth shut rather than trying to impress everyone because you're not impressing every when you're just making an ass out of yourself
not impressed thats not cold .
I guess I mislabeled the title of the video. I wasn't trying to 'show off' how well it started in the cold weather or have a peeing contest for the coldest Cummins start...I was just wanting people to hear what the high idle and 3 cylinder mode sounded like because I think it's pretty neat.