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FC (Forward Control Unique Issues) If you have a unique issue with your FC model coach and it can't be answered in one of the other forums here, then this is where you can list it.......List your FC Parts here too.

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  #1  
Old 02-05-2020
mattafact mattafact is offline
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Default Horton Fan Clutch Stuck On

I picked up my 87 from the mechanics (3 hours from my house) and on the way home the fan clutch light came on and so did the fan. Temp is completely normal. It was leaking slowly when I bought it.



What could be causing this?
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  #2  
Old 02-05-2020
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Steelwheels Steelwheels is offline
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How do you know it was leaking when you brought it home, you could hear the air leak out front ?

When the fan clutch goes bad, it defaults to on. I don’t think it will kill your trip, it’s going to be running non stop. You can rebuild your fan clutch search and you will find plenty of information on it. You need to swing the radiator pull some belts, probably a good time to upgrade your fan to a plastic one.

It can be done in a day but probably take longer your first time at it unless you have experience working on stuff like this.

I don’t think your fan temp switch would cause it to go on like that.

Has the fan been replaced before ?
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Old 02-05-2020
mattafact mattafact is offline
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Quote:
Originally Posted by Steelwheels View Post
How do you know it was leaking when you brought it home, you could hear the air leak out front ?

When the fan clutch goes bad, it defaults to on. I don’t think it will kill your trip, it’s going to be running non stop. You can rebuild your fan clutch search and you will find plenty of information on it. You need to swing the radiator pull some belts, probably a good time to upgrade your fan to a plastic one.

It can be done in a day but probably take longer your first time at it unless you have experience working on stuff like this.

I don’t think your fan temp switch would cause it to go on like that.

Has the fan been replaced before ?
Bruce told me it was leaking and I could hear air leaking from the front.

Now the new lower hoses they installed are dripping on my driveway. I was able to tighten them some but it didn't solve it. This is a nightmare.
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  #4  
Old 02-05-2020
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Steelwheels Steelwheels is offline
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Quote:
Originally Posted by mattafact View Post
Bruce told me it was leaking and I could hear air leaking from the front.

Now the new lower hoses they installed are dripping on my driveway. I was able to tighten them some but it didn't solve it. This is a nightmare.
Don’t let it get you down, you’ll get though the rough stuff. There’s a lot to learn but you will get it. It’s sometimes difficult when you have work done right before a trip especially on a vehicle your just getting to know. You’ll work the bugs out.

I think I may have two hose clamps on some of my hoses.
Seems like the shop that did the work should have checked that.

If Bruce told you the Horton was leaking it probably needed to be rebuilt.
If you search Horton Fan you’ll find threads on it. I bought a rebuilt unit and new fan from Larry at fanclutch.com.

I don’t think you can’t drive it with the fan like it is ?

Others will chime in in the morning.

https://www.wanderlodgeownersgroup.c...ad.php?t=15136
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Old 02-05-2020
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I'm thinking that the electrical connection is the issue
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Old 02-05-2020
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kunzelj kunzelj is offline
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My Horton was recently rebuilt. It was leaking and got worse over time. You could hear the air leaking through the radiator. Eventually the fan would not shut off. Sometimes you could rev the engine up faster and the force would turn it off.

It sounds more like an electrical problem to me as well because the light is on. The light will not go on if it fails to ON because of a leak.

The rad hoses usually drip a bit. Use a second hose clamp and it will be fine.

Sell now if this is a nightmware. In full disclosure, these buses don't get much better and that's only the beginning. It's expensive but fun! You'll either learn to love it or sell... which is usually how this goes.
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1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)

Last edited by kunzelj; 02-05-2020 at 10:30 AM.
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Old 02-05-2020
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chiplamb chiplamb is offline
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Matt, it's worth fixing, as others have said, get a clutch and a plastic fan from Larry and tighten up your rad clamps. Get a copy of Zen and the Art of Motorcycle Maintenance too. Ohm!
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  #8  
Old 02-05-2020
mattafact mattafact is offline
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Quote:
Originally Posted by Crit Bliss View Post
I'm thinking that the electrical connection is the issue
Any idea where I should start looking?
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  #9  
Old 02-05-2020
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Switch on dash.

Solenoid under the driver's side front bumper - usually red with two air lines connecting.

Sensor on the top of the engine which connects to a coolant port.

These are the components that would potentially cause problems or could be stuck.

Disconnect the wire on the switch and see if the light and fan turn off. You may need to have the dog house open to see the fan turn since it's pretty quiet at idle.
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1988 FC-35SB 300HP/ZF (2016-current)
1978 GMC Royale 26' (2015-2016)
1982 FC-33SB 250HP (2007-2009)
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  #10  
Old 02-05-2020
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gcyeaw gcyeaw is offline
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On my '83 FC the horton fan solenoid was wired so the temp switch and override were in series on the ground side of the coil. 12 volts was connected directly to the other coil terminal. That way if there was a failure in the circuit it would fail to 'fan on'. Locate the air solenoid and determine if the power and ground circuits are good.
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