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04-24-2019, 12:58 PM
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#101
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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04-29-2019, 02:59 PM
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#102
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Skoolie
Join Date: Mar 2018
Location: Fingerlakes region NY
Posts: 204
Year: 1999
Coachwork: AmTran/Wolfington
Chassis: 3800
Engine: International DT466E 190HP variant
Rated Cap: 72 pax 29500 GVWR
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Quote:
Originally Posted by Ab01ns
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If I had added cruise control to any of our 1078s/1083s in the motor pool I would’ve probably abused it haha. I hated how stiff the accelerators were on those trucks.
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07-29-2019, 09:45 AM
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#103
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Switches have been pulled from a donor Fld120 with a 3406E of the same vintage. I will be pulling apart the dash harness today to see if the dash connector is has is the same. Fingers crossed that it is
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07-29-2019, 10:00 AM
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#104
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by Ab01ns
Switches have been pulled from a donor Fld120 with a 3406E of the same vintage. I will be pulling apart the dash harness today to see if the dash connector is has is the same. Fingers crossed that it is Attachment 36034
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07-30-2019, 12:20 AM
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#105
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Bus Geek
Join Date: Sep 2015
Posts: 3,856
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
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I for one sure hope it works ... I have a beast wanting cruise.
ECCB, your image did not post.
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07-30-2019, 03:44 AM
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#106
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by Native
I for one sure hope it works ... I have a beast wanting cruise.
ECCB, your image did not post.
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I was up... hmmm I wonder what the heck.
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07-30-2019, 08:28 AM
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#107
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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No such luck. On the FLD120 the CC wires disappear into the main loom of the harness and reappear at the chassis connector.
I will need to wire them directly into the ecm connector. Next weekend I'll take a stab at it.
Also consider wiring a potentiometer in series with the throttle, attaching a self latching relay to the brake light and just spoofing the throttle signal.
We'll see what I end up doing...
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07-30-2019, 09:35 AM
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#108
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,830
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Spoofing the throttle is dangerous self latching relay or not, not because you can’t stop but the computer doesn’t exert as much effort into maintaining RPM as it does for speed on cruise so the result is lots of speed variance as you make even the slightest incline or decline .. the cruise also tells the computer to push the info to the transmission , if it’s a 3060 or 2000 then the throttle modes change when going for cruise vs dead foot driving, with dead foot you’ll reach an eventual point of downshift but not as active as cruise..
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07-30-2019, 03:42 PM
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#109
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Quote:
Originally Posted by cadillackid
Spoofing the throttle is dangerous self latching relay or not, not because you can’t stop but the computer doesn’t exert as much effort into maintaining RPM as it does for speed on cruise so the result is lots of speed variance as you make even the slightest incline or decline .. the cruise also tells the computer to push the info to the transmission , if it’s a 3060 or 2000 then the throttle modes change when going for cruise vs dead foot driving, with dead foot you’ll reach an eventual point of downshift but not as active as cruise..
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Cool good to know. I guess I'm pulling the chassis connector off this weekend and having some fun.
On a side note how to I attach the pins into that thing to make a solid connection. Do I need a special cat tool?
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07-31-2019, 01:25 PM
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#111
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Quote:
Originally Posted by cadillackid
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I will go buy the pins from cat this Friday then. Thankfully cat is right near the yard where I keep the bus. I will take a look at this wire assemblies too
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08-17-2019, 06:42 PM
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#112
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Success. Switches are in and it works. I didn't even need the ecm connectors, the wire were already there. I just spliced in and connected up the switches
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08-18-2019, 04:35 AM
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#113
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Bus Geek
Join Date: Sep 2015
Posts: 3,856
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
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That is so cool! You will have to detail the wiring you had to do for it.
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08-18-2019, 06:00 AM
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#114
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,764
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by Ab01ns
Success. Switches are in and it works. I didn't even need the ecm connectors, the wire were already there. I just spliced in and connected up the switches Attachment 36567
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08-18-2019, 07:20 AM
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#115
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Oh and I forgot that I had to use cat ET to enable the CC.
If you don't have access to a laptop and j1939 interface, you will have to pony up and pay for an hour of shop time to reprogram literally one parameter. Its the "cruise control low speed"
You disable it on a cat by setting low and high to 127mph. Initially my CC didn't work. I set the low limit to 35mph and that was it.
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08-18-2019, 07:25 AM
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#116
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Quote:
Originally Posted by Native
That is so cool! You will have to detail the wiring you had to do for it.
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I followed this exactly. Used a 4 conductor multi core wire run up through the firewall to the dash and connected to the wires from the switches. I still am amazed how easy this was. Thomas said it couldn't be done. The hardest part was physically getting to the body connector on the ecm. It's really burried.
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08-18-2019, 08:08 AM
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#117
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,830
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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ive been looking to experiment with CAT ET.. where did you get it? mhhauto or some the like?
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08-18-2019, 08:18 AM
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#118
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Skoolie
Join Date: Aug 2018
Location: GTA
Posts: 159
Year: 2002
Coachwork: Thomas Built Buses
Chassis: FS-65
Engine: Cat 3126
Rated Cap: 66/44
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Quote:
Originally Posted by cadillackid
ive been looking to experiment with CAT ET.. where did you get it? mhhauto or some the like?
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The computer belongs to a friend's mechanic who leaves his service truck at the yard and lets me use it when he doesn't need it
I am eventually going to buy a toughbook and a nexiq so I can use it on the road but this works for now and you can't beat the price.
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08-19-2019, 12:42 AM
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#119
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Bus Geek
Join Date: Sep 2015
Posts: 3,856
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
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I might have to add this to my list of things to get done right now!
Thank you for the "instructable".
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08-19-2019, 01:22 AM
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#120
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Bus Nut
Join Date: Dec 2018
Location: Rock Hill, SC
Posts: 255
Year: 1997
Coachwork: International
Chassis: Vista 3600
Engine: DT466E / AT545
Rated Cap: 72
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I've got a spare toughbook (or three), will a nexiq work for a International 3600 Vista?
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