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Old 09-20-2018, 07:53 PM   #1
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02 Mountain Star horn problems

02 Mountain Star, does the switch on the dash for the air horn suppose to cut the power to the regular horn when you switch it ?? I got to get the big horns working so where do I start ? I have an real air horn to put on it if I can't get this fixed but that will be all I have and the regular horn won't work. Tell me where to start. Thanks Ronnie
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Old 09-21-2018, 12:24 AM   #2
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Location: Powell River, B.C.
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You will have a fuse and a relay in the electric horn power supply.
The horn button grounds the relay to activate it , the relay feeds power from the fuse to the electric horn.
The dash switch for the air horn , adds the air supply solenoid to the power feed from the relay.

Fuse and relay in the Freightliner power centers , air solenoid ( on my chassis ) the air solenoid is attached to the customer manifold , just to the drivers side of the gen set .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 09-21-2018, 10:06 AM   #3
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Is it a diesel coach? The gas version has what looks like air horns, but they are electric.
2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
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ems, problems

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