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Installing Cruise Control

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Installing Cruise Control
Wed Jun 10, 2009 9:49 am


Well here is 3 questions that i have,
Does anyone have an idea or know how i can install cruise control on my coach? also,
can i just buy a used unit off a semi?, and would that work?






1988 Model 15 8v92 #70252
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silvereaglejerry15
 
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Re: Installing Cruise Control
Wed Jun 10, 2009 11:28 am


If you have a DDEC motor it should be a fairly straight forward job. You will need to have the ECM enabled if it isn't now and add a couple brake switches as well as the dash on, off, set , resume switches.
If you have the mechanical motor there are a number of suppliers available. Some people have converted standard automotive systems to work to save a few bucks (using electric solenoid type actuators vs the standard vacumn type).
Lots of different ways to make it work 'your' way.
Hal
Hal
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Re: Installing Cruise Control
Wed Jun 10, 2009 12:18 pm


Hal,
How can i tell if i have the DDEC motor?
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silvereaglejerry15
 
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Re: Installing Cruise Control
Wed Jun 10, 2009 5:43 pm


The DDEC I's had a two component ECM/ECU with one on top of the motor and the other mounted I believe in the front bay by Eagle. The DDEC II's had a single ECM mounted on top of the motor.
The easy way to tell is by looking at the throttle pedal. If it has wires coming off it, you must have a DDEC motor as all were drive by wire.
Hal
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Re: Installing Cruise Control
Thu Jun 11, 2009 10:57 am


Jerry, I don't know for sure but I would assume that since you have an 88 Model 15 that you would have a DDEC II. Like Hal says, it is just a matter of adding a couple of switches if that is the case. The actual cruise controls are built into the computer.
Dale Houston
1993 Eagle 15-45
Nashville, TN
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Songman
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Re: Installing Cruise Control
Fri Jun 12, 2009 9:40 pm


Ok, i looked at the throttle pedal on the inside and there is no wires, do i look on the bottom of the throttle pedal under the driver? i know this makes me look stupid! lol
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silvereaglejerry15
 
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Re: Installing Cruise Control
Fri Jun 12, 2009 9:55 pm


Jerry, look at your engine. If you have this black box (circled in red) you have a DDEC.

Image

But it sounds like you don't because the wire for the throttle pedal should be visible from the driver's seat.
Dale Houston
1993 Eagle 15-45
Nashville, TN
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Songman
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Re: Installing Cruise Control
Fri Jun 12, 2009 10:01 pm


Jerry, if you have a air engine shut down it is a manual most 88 models were manual,do you have a push button for the transmission or a shifter.If it is a DDEC it will flash lights before startup good luck
Clifford
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luvrbus
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Re: Installing Cruise Control
Sat Jun 13, 2009 10:27 am


silvereaglejerry15 wrote:Ok, i looked at the throttle pedal on the inside and there is no wires, do i look on the bottom of the throttle pedal under the driver? i know this makes me look stupid! lol


Don't worrry I also don't know anything about buses and I'm here asking obvious questions
Julio & Julieta Pérez

1969 05 #7810
8V92 DD / HT-740 Allison
1964 01 #6469
8v71 DD / 4 Speed
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busdriver58
 
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Re: Installing Cruise Control
Sat Jun 13, 2009 11:13 am


I just spoke with Jerry and he does not have the DDEC motor, its definitely an MUI engine. He is still looking for ideas on the cruise control if any of you have some suggestions.
Daniel Lenz
Brownsville, Texas


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