| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,048 Posts1,055,540 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Mar 2010 Posts: 1,660 Curmudgeon | | Curmudgeon Joined: Mar 2010 Posts: 1,660 | The horn relay has a coil (a coil of internal wire) that operates (magnetism) the contacts to operate the horn.
There will be positive (12/6 VDC) attached to one side of the relay coil (via a ignition switch other other circuit).
You will measure positive (12/6 VDC) on the other side of the coil because it is a coil of wire.
If you ground that side of the coil it will make the relay operate.
"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."
| | |
|
|
| |
