Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

under hood light operation

Thread Tools
 
Search this Thread
 
Old Jun 14, 2004 | 08:33 AM
  #1  
77460f150's Avatar
77460f150
Thread Starter
|
More Turbo
Joined: Apr 2004
Posts: 736
Likes: 3
From: South East, Michigan
under hood light operation

I have a 77 Ford F-150 and am looking into installing a "under hood light". I have seen a few of these on Bronco's and would like to know what makes the light turn on and off?? When you raise the hood more than approx. half way the light comes on and turns off when hood is closed more than half way. I have looked and can not find any kind of "switch" that makes or breaks the contact. My truck has the power connector to plug into for the light, I just wanted to understand how this light operates. Any info would be helpful. I have searched the forums and have been unable to find any info on this subject.
 
Reply
Old Jun 14, 2004 | 08:52 AM
  #2  
beartracks's Avatar
beartracks
Lead Driver
25 Year Member
Photogenic
Joined: Nov 2000
Posts: 6,652
Likes: 353
From: Albuquerque
The light is triggered by a mercury switch. It'a a small vial of the stuff with a couple of contact that make when you tilt the vial. might find one at an alarm supply.
 
Reply
Old Jun 14, 2004 | 09:49 AM
  #3  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
The system is just light like an old thermostat with the lever setting that's in your house.

They are available in old cars as well.
Visit a wrecker near you.

If you want brand new & motorhaven or our sponsors doesn't have it ,they are available at Mustang parts shops.
 
Reply
Old Jun 14, 2004 | 10:33 AM
  #4  
77460f150's Avatar
77460f150
Thread Starter
|
More Turbo
Joined: Apr 2004
Posts: 736
Likes: 3
From: South East, Michigan
Thanks guy's, I just have one more thing I am wondering?? Does this mean the light can (and most likely is) switching on and off as you are driving down the road??
 
Reply
Old Jun 14, 2004 | 10:54 AM
  #5  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
No, It should be directly off as the switch part is horizontal.

I prefer the good old fashioned switch on the inner fender that controls 2 lights one of each set of sparkplugs.

Then for major breakdowns I use the magnet type trouble light that plugs into a lighter socket.
I have one in the truck.
One under the hood
One under the topper.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vectrex
6.0L Power Stroke Diesel
20
Jun 25, 2012 05:54 PM
johniebomb
Electrical Systems/Wiring
6
Jan 25, 2012 01:09 PM
YkDave
1999 - 2016 Super Duty
11
Jan 16, 2011 08:04 PM
peterskajr
2004 - 2008 F150
2
Jun 28, 2007 06:38 PM
99 f350
1999 - 2016 Super Duty
3
Feb 5, 2007 07:58 AM




All times are GMT -5. The time now is 10:06 PM.

story-0
10 Fords to Drive Before You Die

Slideshow: 10 Fords to drive before you die.

By Joe Kucinski | 2026-06-22 14:29:44


VIEW MORE
story-1
3 Best / Worst Features Of The 2025+ Ford Expedition

The latest Expedition is quite popular, but it certainly isn't perfect.

By Brett Foote | 2026-06-22 14:23:19


VIEW MORE
story-2
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-3
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-4
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-5
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-6
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-7
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-8
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-9
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE