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Old 06-05-2018, 08:57 AM   #1
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What is this, cruise control thing?

Hello,

I am kind of new, been hanging around for a while. I have a 2003 International 3800 with the T444E and an automatic transmission. Full size bus with handicap lift in the back, and 2 A/C units (engine driven) inside.

Anyway, on the cruise control panel there is a square button that has a light in it, but the cover is gone. I cannot tell if there is another light next to it or just a blank cover. This is in the lower right corner (or if the picture is sideways top right). The panel is located between the gear selector and the fuse panel. I have tried to attach a picture (fingers crossed).

Anybody know what it is and how it works?

One day I will find a knob for the light also, probably a custom job.
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Old 06-05-2018, 01:27 PM   #2
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It's a throttle control. When starting up in cold weather you can rev it up to 1200rpm and lock it on so the oil circulates and you don't do damage to the engine. If you have a computer to unlock the cruise function you can use it as a cruise control when driving and it behaves just like a cruise would (turning off when you tap the brake or clutch, accelerating with gas but dropping to whatever you had it set for with no gas) but it is NOT a true cruise. It's still just locking in your throttle. Depending on the pitch it keeps me within a 5-10mph range. I have one unlocked and love it. Made a 400 mile trip very bearable as I didn't have to mash the gas pedal to the floor the whole way.
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Old 06-05-2018, 01:37 PM   #3
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I get the trottle control stuff for fast idle... tried using it for cruise contol but it seemed weird. The label beside those rocker switches was helpful. It also helps to speed the engine up for the A/C units when its hot out.

However, I am talking about what looks like a white square. It is a button and has a light (that I have not seen work). If i use my little finger I can just push it down.

Thanks Warewolff for the reply.
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Old 06-05-2018, 01:58 PM   #4
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I have near identical switches in my Bluebird.

My cruise control works just like the one in my pickup.

I also have a separate fast idle switch.
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Old 06-05-2018, 02:10 PM   #5
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Yeah I think it was wierd because it was sooo far away to reach, lol. Anyway I found that holding the pedal all the way down worked most of the way from San Antonio to Denver anyway.

I added the picture with the parts circled that I have no idea what they are for. Red circle is the lighted button, and the arrow with "?" I think might be a blank cover.

PNW Steve where is your seperate fast idle switch?
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Old 06-05-2018, 03:20 PM   #6
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My fast idle is on the left near the headlight switch. Cruise control switches are on the right.
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Old 06-05-2018, 08:47 PM   #7
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ive never seen that switch on any Navistar before..thinking maybe it was something the school added?



the high idle as you found is the cruise control switches.. place the left switch in the down position and use the right hand switch to run the idle up and down to the desired speed.. cruise is often disabled in the computer.. if cruise is enabled you use it just like you do a regular car cruise control.. left switch down and then hit set for your speed.. and tap the right switch into accel for a second to gain a single MPH... tap the set coast to drop a MPH...



maybe extra running lights or such attached to that other switch? come to think of it if it had fog lights originally i thinkl the factory fogs were in that position on the dash.

-Christopher
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Old 06-06-2018, 07:20 AM   #8
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Thanks for the reply. I don't think there are fog lights on it (never occured to me to look) but maybe I can trace the wires and see where they go from the switch. If i figure it out I'll try and add it here. However, it is just something that bothers me (not knowing), but not high on the list of things to do.


-Frank
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Old 06-06-2018, 10:37 AM   #9
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Possibly for heated mirror or rear defrost? Jack
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Old 06-07-2018, 08:43 AM   #10
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Okay so I put a flash light next to the blank looking thing... its a light. Looks like it says "Range Inhibited" or something like that. Cannnot remember exactly. So i assume the button next to it does something relevant. Also the wires in the back are connected. The button and light are Eaton manufactured also.

I would guess the button is a reset or override? If it was a reset then I would think it shoudl be a momentary switch, but it is latching. I really hope someone can tell me what it does, and if it is normally in or out.
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