| [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153103] |
Thu, 15 December 2011 18:56  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Read that 4 GMCers left their lights on this year, (one of them twice;>),
and ran down their starting battery. Not only is this a hassle, it is real
hard on the batteries.
so was time to publish this easy, cheap, DIY , project.
If you can pull a fuse, you can do this project
- for $3,
- without wiring,
- no mods
- old or new GMC's.
- Never forget to turn off your headlights again
- so who says everything on a GMC is expensive?
- Gopherit
http://goo.gl/bSZab
the pdf file is easier to read, but the individual slides are easier to
print
good luck
gene
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153108 is a reply to message #153103] |
Thu, 15 December 2011 19:12  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Gene,
This is very cool, but how does it work? Why does the circuit complete when you turn off the engine?
Larry Davick
Fremont, California
The Mystery Machine
'76 (ish) Palm Beach
----- Original Message -----
From: "gene Fisher" <>
To: gmclist@temp.gmcnet.org
Sent: Thursday, December 15, 2011 4:56:55 PM
Subject: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3
Read that 4 GMCers left their lights on this year, (one of them twice;>),
and ran down their starting battery. Not only is this a hassle, it is real
hard on the batteries.
so was time to publish this easy, cheap, DIY , project.
If you can pull a fuse, you can do this project
- for $3,
- without wiring,
- no mods
- old or new GMC's.
- Never forget to turn off your headlights again
- so who says everything on a GMC is expensive?
- Gopherit
http://goo.gl/bSZab
the pdf file is easier to read, but the individual slides are easier to
print
good luck
gene
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153119 is a reply to message #153108] |
Thu, 15 December 2011 20:00 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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The Sonalert is a polarity sensitive device that draws very little current. If the lights are on the Sonalert sees + voltage from the lights. If the key is also on then the Sonalert also sees + on the other side and nothing happens.
If you turn the key off, then + goes away on that side and the son-alert sees ground or minus through the accessories downstream of the fuse. If you turn the headlight off and the key is on then the Sonalert see 12 volts across it also but it is reverse voltage and the Sonalert does nothing.
This works great. I have used them for years as headlight alarms and turn signal alarms.
I have one across the oil pressure sender and master switch on my airplane. It tells me when I leave the master switch on and the engine is not running. It also doubles as a low oil pressure warning alarm. On an airplane the ignition key only shuts down the ignition. The master switch turns off all other electrical devices. I have left the master on a couple of times and run down the battery. I hate having to pull the prop to get the engine started to get back home again. I remember having to do it one time in the winter in lightly blowing snow while dressed in a business suit.
Do it. It is a simple add-on. Just make sure you test the alarm before installing it to be sure it is loud enough and at a frequency you can hear. My hearing has degraded enough that I can no longer hear the one I have on my turn signals. I need to replace it with a lower frequency one.
Radio Shack has several different versions available. Also:
http://www.mallory-sonalert.com/2_0.htm
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153124 is a reply to message #153119] |
Thu, 15 December 2011 20:16 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""I have one across the oil pressure sender and master switch on my airplane. It tells me when I leave the master switch on and the engine is not running. It also doubles as a low oil pressure warning alarm. On an airplane the ignition key only shuts down the ignition. The master switch turns off all other electrical devices. I have left the master on a couple of times and run down the battery. I hate having to pull the prop to get the engine started to get back home again. I remember having to do it one time in the winter in lightly blowing snow while dressed in a business suit. ""
Although I really don't care for gages on my GMC I do worry about oil pressure so when I hooked up my electric fuel pump through the oil pressure switch, I also hooked up a sonalert so if the oil pressure drops with ignition on, I know it right away.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153132 is a reply to message #153129] |
Thu, 15 December 2011 20:31 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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| WD0AFQ wrote on Thu, 15 December 2011 19:25 |
It is a good cheap little mod to make. I did it about 5 years ago and it has saved my battery a few times, on rainy days. Also put a buzzer on the turn signals so I don't leave one on by accident. I hate getting behind some old goat driving with his left blinker on. If I did not have the Digi Panel I would do same thing on the oil pressure.
dan
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Yes the turn signal app is a great one as well--hate to be one of those old goats 
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] HEADLIGHTS ON - WARNING BUZZER -DIY $3 [message #153152 is a reply to message #153103] |
Thu, 15 December 2011 23:05 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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Bob, I also have a buzzer on my vdub blinkers because the stock flasher can not be heard. the grandkids are split on the noise. Some love it and some claim it is "annoying". Teri does not like either buzzer. I did quiten down the one in the GMC for her. She does not ride in the bug so I left it loud to be heard above the loud headers.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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