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10-14-2017, 05:23 PM
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#1
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New Member
Join Date: Oct 2017
Posts: 4
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No start after removing A/C units
Hello!
I have a 1990 Thomas built bus with a Ford 6.6L and a 5 speed tranmission.
This was a former church bus and had large a/c units above the seats and below the bus. I removed these units along with all the wiring because it didnt work and took up too much space. All of these units were wired to 2 sets of relays in the engine bay. I figured all of these relays were controls for the a/c. These relays were labeled as r1low, r2high, r3cond, r4comp on both sets, so i started pulling the wires out of the relays. Today i went to start the bus and it just clicked. Voltage on the batteries seems good, and im not sure if somehow pulling these wires out interrupted a starting circuit somewhere. Does anyone know if these relays in the engine bay would control starting? The other thing im thinking could be a culprit is that i unbolted the vandalock units from the rear window to remove the linoleum, I did not cut any of the wires, I just left them hanging. I put them back and it appears that the vandalock is in the correct position, but still no start. Any tips would be greatly appreciated! thanks!
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10-14-2017, 05:28 PM
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#2
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Traveling
Join Date: Nov 2015
Location: Midwest
Posts: 2,573
Year: 2003
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9L Cummins
Rated Cap: '00
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Quote:
Originally Posted by 1990glacier
Hello!
I have a 1990 Thomas built bus with a Ford 6.6L and a 5 speed tranmission.
This was a former church bus and had large a/c units above the seats and below the bus. I removed these units
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Somebody hide this thread from CadillacKid.
We have no idea what you did. Post pictures and we can guess.
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10-14-2017, 05:41 PM
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#3
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New Member
Join Date: Oct 2017
Posts: 4
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pictures
Im not sure if these are helpful or not. These are pictures of the relays in the engine bay and the vandalock at the rear.
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10-14-2017, 06:09 PM
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#4
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,751
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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the vandalock will be the culprit.. those are designed so that the bus wont start unless the locks are in the Unlocked position. thus making it so the emergency doors are unlocked....
-Christopher
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10-14-2017, 06:11 PM
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#5
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,751
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by Rusty
Somebody hide this thread from CadillacKid.
We have no idea what you did. Post pictures and we can guess.
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hey anyone can take out their A/C that wants.. I just sit and laugh when it comes july next year and the "what can I do to not sweat" thread comes out.. if I happen to read it while im in the bus taking a rest break.. ill just smile as I adjust my A/C vents away from me because its too cold..
-Christopher
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10-14-2017, 06:26 PM
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#6
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New Member
Join Date: Oct 2017
Posts: 4
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Quote:
Originally Posted by cadillackid
hey anyone can take out their A/C that wants.. I just sit and laugh when it comes july next year and the "what can I do to not sweat" thread comes out.. if I happen to read it while im in the bus taking a rest break.. ill just smile as I adjust my A/C vents away from me because its too cold..
-Christopher
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Believe me I wanted to try and keep it, these things were huge over head units and took up incredible amounts of space! Im sure it will be hot, but i dont have ac in my house "trailer" either, so i figured i would adapt or die!!!! Also as far as the vandalock system, i tried it in both positions and the bus wont start in the open or closed position. Im gonna keep going along the vandalock path, I was just making sure i didnt somehow disrupt the starting system by removing the electrical from the ac. Do you know if the vandalock system is fused or relayed anywhere? Ill dig more into it tomorrow.
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10-14-2017, 06:47 PM
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#7
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Traveling
Join Date: Nov 2015
Location: Midwest
Posts: 2,573
Year: 2003
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9L Cummins
Rated Cap: '00
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Quote:
Originally Posted by cadillackid
hey anyone can take out their A/C that wants.. I just sit and laugh when it comes july next year and the "what can I do to not sweat" thread comes out.. if I happen to read it while im in the bus taking a rest break.. ill just smile as I adjust my A/C vents away from me because its too cold..
-Christopher
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Sorry, bro. You are the voice of reason. I bet you meditate, don't you????
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10-14-2017, 07:03 PM
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#8
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 18,751
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by Rusty
Sorry, bro. You are the voice of reason. I bet you meditate, don't you????
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I do meditate... Phillips hue lights and "music from the hearts of space sets the mood"...
I dont poke hornets nests with sticks though unless the nosy neighbor with yippy dogs is walking by...
-Christopher
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10-14-2017, 07:23 PM
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#9
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Bus Geek
Join Date: Sep 2017
Location: Owasso, OK
Posts: 2,627
Year: 1999
Coachwork: Thomas
Chassis: Saf-T-Liner MVP ER
Engine: Cummins 6CTA8.3 Mechanical MD3060
Rated Cap: 46 Coach Seats, 40 foot
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Quote:
Originally Posted by cadillackid
I do meditate... Phillips hue lights and "music from the hearts of space sets the mood"...
I dont poke hornets nests with sticks though unless the nosy neighbor with yippy dogs is walking by...
-Christopher
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I found a playlist you might like:
https://youtu.be/-nP53KkGikA
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10-14-2017, 10:20 PM
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#10
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Skoolie
Join Date: Aug 2016
Location: Kansas
Posts: 224
Year: 1995
Coachwork: Thomas
Engine: 8.3 Cummins, 643
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Check this thread
http://www.skoolie.net/forums/f10/ki...new-10315.html
Watch the video in this thread he goes through bypassing the entire system, and it's much easier than trying to figure it out without wiring diagrams. Hope this helps!
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10-16-2017, 01:00 PM
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#11
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New Member
Join Date: Oct 2017
Posts: 4
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Quote:
Originally Posted by jacob
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thank you so much!
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10-16-2017, 08:56 PM
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#12
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Skoolie
Join Date: Aug 2016
Location: Kansas
Posts: 224
Year: 1995
Coachwork: Thomas
Engine: 8.3 Cummins, 643
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Did you get it figured out? I saw your bus was a few years older but hopefully it didn't change much
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