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Old 03-06-2007, 10:15 PM   #1
Mini-Skoolie
 
Join Date: Dec 2006
Location: Whidbey Island, Washington
Posts: 14
Year: 1980
Coachwork: Crown
Chassis: 3 axle (10 wheel)
Engine: GMC 6-71 T
Rated Cap: 97
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Crown stop light switch

The stoplights on my Crown quit working today. After checking the bulbs abd the breaker, the next logical check would be the air actuated switch. Problem is, I can't find it. I am learning a lot about the bus but still no air switch. Does anyone have any ideas?
Wayne

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Old 03-06-2007, 10:43 PM   #2
Bus Nut
 
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Join Date: Nov 2003
Location: Twin Falls, Idaho
Posts: 809
Crown bus stop lite switch

The Crown buses use 2 switches to control the brake lites. One switch is in front under the dash. I think the switch you are looking for is mounted on the quick action valve located near/above the rear axle. To check the switch, it will require getting under bus. As ya may know if bus is running, and park brake is engaged, brake lites will be lited. The brake switch at rear can only be tested with bus wheels blocked, park brake not engaged, and wires on switch jumpered. The wires to the brake switch are both 14gage white wires. I'm gonna wire my front switch to another manual switch so when the bus is running, the rear lites will not annoy others. I could actually disconnect the front switch as my bus does not haul passengers. I installed a switch also to control the low air horn. Frank
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Old 03-07-2007, 12:26 AM   #3
Mini-Skoolie
 
Join Date: Dec 2006
Location: Whidbey Island, Washington
Posts: 14
Year: 1980
Coachwork: Crown
Chassis: 3 axle (10 wheel)
Engine: GMC 6-71 T
Rated Cap: 97
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Thanks

Thank you, Frank. I will take a look tomorrow. My Crown is the 40' with twin drive axles.
Wayne
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Old 11-06-2018, 08:24 AM   #4
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Join Date: May 2017
Location: colorado
Posts: 9
Year: 1988
Coachwork: crown
Chassis: 2A-36-426
Engine: DD-6L-71T
Rated Cap: 78
Quote:
Originally Posted by frank-id View Post
The Crown buses use 2 switches to control the brake lites. One switch is in front under the dash. I think the switch you are looking for is mounted on the quick action valve located near/above the rear axle. To check the switch, it will require getting under bus. As ya may know if bus is running, and park brake is engaged, brake lites will be lited. The brake switch at rear can only be tested with bus wheels blocked, park brake not engaged, and wires on switch jumpered. The wires to the brake switch are both 14gage white wires. I'm gonna wire my front switch to another manual switch so when the bus is running, the rear lites will not annoy others. I could actually disconnect the front switch as my bus does not haul passengers. I installed a switch also to control the low air horn. Frank
any update on this? i was in/under my dash removing the antenna (to prep for paint) and now don't have tail lights (either when headlights are on or when brakes are applied)

what should i be looking for (going to assume it's the dash issue as opposed to the rear/under carriage issue)
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