Well followed the instructions from both of the pages, the original and the in depth by our member here, works as advertised, I ended up useing a normal switched 12v source instead of useing the brake pedal method, since I like having switches to play with. Got a pretty neat heavy duty toggle that the tip lights up when powered.

haha...turned it up to the resume setting 1750~1800 ish..that straight pipe is so freakin loud outside the truck...I feel sorry for my neighbors on a cold morning..LOL

Good job on the install. WYI. I only use the 1250RPM setting to warm her up. 1700RPMs might be alittle much on a cold engine. This does not mean I am right..more like just what I do. Your neighbors might want to thank me.http://www.dieselplace.com/forum/smileys/Clap.gif


What RPM do other owners use?

I usually start off by letting it idle at 950RPM and then bump it up to 1250RPM after a minute or two. I find when it's cold out like it has been lately (-18°F) I have to do it this way or it peg's the oil pressure guage. After a 5 minute warm up engine temp is starting to rise and oil pressure is backing away from the top. I only use the highest setting 1750RPM? if I need to make a quick stop to pick up something. One of the simplest and cheapest mods you could ever make!!

I only use the 1250 setting also. I turn it up after about 5 minutes or so If I remember to go back out and turn it up.

Where do you guys get your high idle kit? Are there certain ones that a guy should stay away from?


My buddy has a powerstroke that does this automatically. thats the only feature I like.


Thanks http://www.dieselplace.com/forum/smileys/Big Smile.gif

http://dieselplace.com/forum/forum_posts.asp?TID=1006&PN=1


About 20 bucks in parts.


Read ALL of that, as well as the original link here: http://www.kennedydiesel.com/docs/HIGH%20IDLE%20INSTALL%20FINAL.htmEdited by: Wickedsprint

Why is the stock idle for extended periods supposedly bad on the engine?

Something to do with washing the oil off the cylinder walls and in cold climates it is not sufficient to keep the engine warmed up.

I can testify to the cold climate part. You can let my truck idle for 30 minutes and it will still be chilly. Only took one time to figure that out. My neighbor with the 7.3 stock idles his everyday for 15 to 30 minutes. Slow learner!

Bronco, the high idle also gives you more oil pressure and that is also a good thing if you are going to idle for awhile. All the 'Big Rigs" have this option also...also use the C/C to make the settings. The Peterbilt I drove had auto shut down if I did not set the idle(after 5 or 10mins)....the dif with the Pet is I used the throttle to get the RPM I wanted and would set the C/C.


Anyway probably to much info...http://www.dieselplace.com/forum/smileys/Ermm.gif

Got a pretty neat heavy duty toggle that the tip lights up when powered.





What kind of switch did you get? Cost? I'm trying to find the illuminated, textured Contura rocker switches for my overhead console to replace my el-cheapo rockers I have in there now. The only place I've found them so far is an on-line company that lists them for over $20 a piece. At that price, I'll be keeping the el-cheapos! The Conturas are what are in our fire trucks and they look and work great.





Thanks,


Kevin

The switch is made by Calterm, part number 40291...was about 7 bucks if I recall, made VERY well. Rated for 30A. Is designed to be mounted in a .5 inch hole. This is off, it is silly bright when on, you can't miss it.http://www.dieselplace.com/forum/uploads/aic_002.jpg

Switch can be found at Advance auto parts, sorry.

http://www.dieselplace.com/forum/uploads/PTO_Switch.jpg (http://community.webshots.com/photo/61321434/65655297NlCluF)


I like my switch for my High Idle. Pricey though. Has a backlight at night and blinks when it is engaged.Edited by: 3-Fan

Fireman, el-cheapos in the over head? Are they the switches that come with the Attitude holder or something that you installed?

What is the PTO switch for? Sorry if it is a dumb question.

Tow truck...or dump truck?

The PTO switch is used in the Chassis cabs that can be equiped with a PTO. I bought the switch to make it seem OEM. I just snaps right into the space beside the airbag switch in my 2500HD EC.

dmaxalliTech sells a kit with everything you need real reasonably priced. $10

HERE (http://www.gmdieseltech.com/shop/index.php?cPath=6&osCsid=099b9e43c697a8ad714e35aaf1692d4a)

I must be missing something. The instructions say it will run poorly if the high idle is left on. If it is installed using the brake switch wire instead of a toggle switch the high idle turns off as soon as you step on the brake. So far so good. However, once you take your foot off of the brake pedal won't that wire once again feed 12V to the high idle? Then, won't the high idle be engaged as soon as you try to use your cruise control? I know many of you are doing it this way so I have to assume I'm overlooking something here. Please, someone set me straight on this.


Thanks,

I must be missing something. The instructions say it will run poorly if the high idle is left on. If it is installed using the brake switch wire instead of a toggle switch the high idle turns off as soon as you step on the brake. So far so good. However, once you take your foot off of the brake pedal won't that wire once again feed 12V to the high idle? Then, won't the high idle be engaged as soon as you try to use your cruise control? I know many of you are doing it this way so I have to assume I'm overlooking something here. Please, someone set me straight on this.


Thanks,

Putting the truck in gear I think turns the cruise control back to it's origunal function.

I believe that wire only has +12v when in park and brake is not pushed. So once it is in geer that wire no longer has +12v.

I believe that wire only has +12v when in park and brake is not pushed. So once it is in geer that wire no longer has +12v.

That'll do it. I have a switch set up but i like the brake pedal idea.

That is a good idea. This way you will never drive off with the circuit powered...I heard of the brake thing but could not figure it out.http://www.dieselplace.com/forum/smileys/Embarrased.gif

Makes sense now. Thanks!!

Thanks to everyone that supplied information for setting up the high idle. I had been into my dealer a few times inquiring on a high idle fix and they knew nothing about being able to do it. They do now!!! I was thinking of going back to a Powerstroke because of this problem!!

Total cost was about $6 and I still have 30 feet of 18 gauge wire left over! Instead of removing the electrical tape on the wiring harness near the firewall and routing the wire there I used a firm solid wire and attached the 18 gauge wire to it. I then routed it through the grommet that the hood latch cable goes through. This worked well, was easy to do and it comes into the cab near the brake pedal. I wired it direct to the green and white wire above the brake pedal and it works great. First time "messing around" with ECM's and TCM's. Was a little intimidating but the instuctions were great with no problems. I would urge anyone with a little mechanical ability to take a stab at it. Thanks again.

(Its supposed to be -10 for highs and -30 for lows here in N.D. next week with -60 windchills. High idle will be great!!)

Why is the stock idle for extended periods supposedly bad on the engine?





Incomplete combustion of fuel at sub-operating temperature does lead to cylinder wall wash down. Unburnt fuel washes oil off, past rings, contaminating oil. Also can carbonize exhaust valves. To what extent this happens in our trucks, maybe someone who gets their oil analyzed can say how much fuel is in their oil, depending on how much they idle.


I know someone will question, "what about rigs? they idle all the time." I believe the vast size difference of the engine helps maintain the level of heat - just a hypothesis. Also, what's to say it doesn't happen in them? Maybe its just not worth worrying about.


Gotta run. my truck is outside idling...http://www.dieselplace.com/forum/smileys/Tongue.gif

Guy's learned alot about the high idle install, can't wait till spring to install, besides warming my d/a up for the winter, I plan on using mine at the track while I'm loading my race car into the trailer I'll have the a/c & high idle on (a/c compressor needs some rpm's to really get it to speed up & blow cold on them 90degree summer days at the race track) truck will be nice and cold for the ride home. DOES ANYONE KNOW IF THE 04'S NEED TO GO BACK TO THE DEALER FOR REPROGRAMMING OF THE COMPUTER AFTER THE IDLE INSTALL?


Thanks...

Mine did not but I have the 04 LB7.

I heard the 04's kick up the idle automatically after a set amount of time.

I just got my '04 (LLY) and it has the high idle control built into the steering wheel controls. Do you guys (installing the kits) not have steering wheel controls? Or is this new for '04. Just curious.

I heard the 04's kick up the idle automatically after a set amount of time.


All '04s or just the LLYs?


I just got my '04 (LLY) and it has the high idle control built into the steering wheel controls. Do you guys (installing the kits) not have steering wheel controls? Or is this new for '04. Just curious.


I don't have an idle control on my steering wheel that I know of, which button is yours on ? Edited by: srode

That would be a function specific to the LLY.

I don't have an idle control on my steering wheel that I know of, which button is yours on ?





It's on the upper right hand side button (where you set the locks, lights, etc.)

NO Wake 200, thanks for the reply my 04 is non LLY..


Thanks

Chalie,


It was my pleasure.http://www.dieselplace.com/forum/smileys/Big Smile.gif


It was a fun project...and if you need any help the guys on the site are more than willing to help.

3-Fan, how much was the factory switch and do you know the part number?

PTO Accessory Kit Part # 12497678


Gmparts.com want $31.50. I didn't check the shipping. If you have a Crew Cab you will need to order the switch housing and maybe some blank covers.


# 15040484 - 4 Pod Housing
# 15040483 - 2 Pod Housing
# 15734687 - Blank Cover Plates (5 per pack)


Hope that is what you were looking for.http://www.dieselplace.com/forum/smileys/Big Smile.gif

3-Fan


How exactly does this PTO switch work and what is the advantage? Do you turn the switch on, then use the cruise control? Looks really good and I was thinking about going that way.


Thanks Alot

goin' pullin',

This is how I wired my PTO switch. First I needed to make the conneciton to the back of the PTO switch. It has 8 SMALL male prongs sticking out of it. There was no way I could solder the wires onto them. So after A LOT of searching, I was able to locate the correct plug that is used by GM to plug into the PTO switch. I went to:

http://www.powerandsignal.com (http://www.powerandsignal.com/)

and was able to find the exact part numbers I needed. They even had .pdf drawings and 3D Cadd model of the pieces to look at. If oyu look at the quanties you can order, most I think start at about 1000. There is no way I wanted 1000 of these. But found out another neat little trick. Click on the “add to sample” button and they will ship you just a few of whatever you need for free. They even pay for the shipping. So I ordered:

6 each – item # 12045689 which are the clips that hold the pins into the plug.
16 each – item # 12047767 which are the pins themselves.
4 each – item # 12186098 which are the plug.

I ordered extra because I knew I would mess something up assembling it. Once you sanp the clips in, there is no way to get them out. The parts showed up about 5 days later, exactly what I wanted.

Now you only need 3 of the 8 pins on the back of the switch. And without tearing my dash apart again, I can’t tell you which ones I used. But how I figured it out was I popped the switch apart (real easy) and used a continutiy tester to see where each pin made contact with the switch. You need to connect power in, power out to you ECM and then a ground in to make the backlight light up. If yo

3-Fan


Thanks for taking your time to explain all of this to me. I'm new to this site and can not believe how helpful everyone is.


Thanks again


Matthew

Thanks 3-Fan, I've got all my parts ordered and everything should be in soon.

Installed mine last night. Ran mine through the E brake switch using a relay. Works fine. Set E-brake and turn on fast idle, release E-brake and fast idle shuts off.