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Old 02-21-2016, 01:16 PM   #1
Mini-Skoolie
 
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loud buzzing

Have a 96 blue bird. Navistar 7.3 and Allison. Have had all door buzzers disabled and no issues. Recently when starting a loud buzzing coming from under weldon flasher location. Runs fine. Blinkers and stop lights fine. Fuses at battery good. Any ideas?
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Old 02-21-2016, 01:23 PM   #2
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Mine will buzz if the air isn't up to a safe psi.
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Old 02-21-2016, 04:34 PM   #3
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Does the buzzer stop when the air reaches operating pressures?
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Old 02-21-2016, 07:17 PM   #4
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If your bus has air brakes it could be a low air pressure warning letting you know not to start driving until the pressure builds up.
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Old 02-21-2016, 08:24 PM   #5
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And there should be a "wig-wag" to go along with it!
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Old 02-21-2016, 11:34 PM   #6
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And there should be a "wig-wag" to go along with it!
Were they still using wig wags in 96??, My 88 Crown only has a buzzer??
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Old 02-22-2016, 12:14 AM   #7
Mini-Skoolie
 
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I don't have air brakes so not an air pressure warning. It starts buzzing soon as you turn key one click either way.
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Old 02-22-2016, 11:13 PM   #8
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And there should be a "wig-wag" to go along with it!
Sorry Tango but.....wig wag? You are dating yourself my friend!!!

I havent seen one of those nor heard that term in 30+ years.
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Old 02-22-2016, 11:15 PM   #9
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Maybe it's time we bring'em back. Hey...they do get your attention.
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Old 02-23-2016, 02:00 PM   #10
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I think NY still spe'c's wig wags in their air brake equipped buses.

Everyone else gets by with lights and buzzers.

Since you don't have air brakes you have some sort of assisted hydraulic brakes.

You should hear a the sound of the hydraulic booster electric override working if you press the pedal with the engine off. It may sound a bit like a buzzer.

As far as additional buzzers are concerned, does your bus have roof hatches that have buzzers? The Transpec roof hatches can be very difficult when it comes time to get them closed properly to get the buzzers to stop buzzing.
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