Train horns


Asked by Jul 04, 2016 at 12:13 AM about the 2010 Ford F-150 King Ranch SuperCrew LB 4WD

Question type: Maintenance & Repair

My compressor on my train horn set went out a
couple of months ago. I've had problems with the
shop that sold em to me with getting a new
compressor. It took about 4 months for them to
finally give me a new one. Throughout that time
the horns themselves were still mounted on. I
installed the compressor and it sounded fine, but
as soon as I hit the switch for the horns to blast,
nothing happened. I guess there's a problem with
the horns? Can anybody help? I don't want to go
back to the shop to wastep more of my time.

7 Answers


Moisture is a real killer for these systems, a lot of them loose the control electro valve to moisture and corrosion so make sure you are getting power to the control valve and if so then that is the most likely suspect, of course moisture could have damaged the actual horns themselves but you need air to find out.

Best Answer

So how do I check if the valve is functioning?


It should click when power is applied, if it don't then you can take it off and see if you can free it up with some WD 40, but usually it has to be replaced.


Thanks you really helped alot, I was thinking on buying the whole horns and valve. Just one more question, if it doesn't click, where do I apply the WD-40?


Right down the throat of it, let it sit a bit and give it is try.


Will do first thing tomorrow, thanks!


Hope it works.

Your Answer

Add photo

Related Questions


Looking for a Used F-150 in your area?

CarGurus has 216,491 nationwide F-150 listings starting at $1,000.


Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
Reputation 6,010
#2 dandyoun
Reputation 3,890
#3 tennisshoes
Reputation 2,300
View All

Related Models For Sale

Used Chevrolet Silverado 1500"
2,451 Great Deals out of 144,012 listings starting at $1,995
Used GMC Sierra 1500"
1,028 Great Deals out of 56,350 listings starting at $2,400
Used Dodge Ram 1500"
517 Great Deals out of 13,858 listings starting at $995
Used Toyota Tundra"
617 Great Deals out of 26,462 listings starting at $2,500
Used Ford F-250 Super Duty"
454 Great Deals out of 42,777 listings starting at $1,000
Used Toyota Tacoma"
651 Great Deals out of 30,299 listings starting at $2,850
Used Ram 1500"
1,289 Great Deals out of 111,082 listings starting at $7,995
Used Ford Mustang"
743 Great Deals out of 41,405 listings starting at $900
Used Nissan Titan"
227 Great Deals out of 13,219 listings starting at $4,500
Used Ford Ranger"
260 Great Deals out of 7,800 listings starting at $988
Used Ford Explorer"
1,347 Great Deals out of 71,768 listings starting at $300
Used Chevrolet Tahoe"
1,121 Great Deals out of 36,357 listings starting at $1,700
Used Chevrolet Colorado"
321 Great Deals out of 17,586 listings starting at $2,495
Used Nissan Frontier"
445 Great Deals out of 20,684 listings starting at $2,500

Used Cars For Sale