Capacitors under dash
Thread Starter
Racer
Joined: Apr 1999
Posts: 461
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From: Las Vegas NV
Capacitors under dash
Are the capacitors under the dash strictly for radio noise suppression? Part of the reason I ask is when I looked up under the dash I found one attached to left side of steering column on a brace with the leads pulled out from something. I don't see this in the AIM and I really can't see anything it has affected. Thanks...vetzs
Melting Slicks
Joined: May 1999
Posts: 2,897
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From: Moon Township PA
Re: Capacitors under dash (vetzs)
I have always understood that these capacitors were indeed for noise suppression for the radio. As a note, all of my 66 dash capacitors were missing and the radio worked quite well for a 30+ year old radio.
Gary
Gary
Pro
Joined: Jul 2001
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From: Thornton Co
Re: Capacitors under dash (vetzs)
I found the same thing on my steering column, it was also not connected and I wondered what it was. I asked a buddy but he didn't know and I am really interested to find out what it is. I can't even find wires that might connect to it, my radio is stock and I thought all of the wires would be there but I can't seem to locate anything that would connect to it. I am as confused as you are. I hope someone has the answers to this question.
Kurt
Kurt
Burning Brakes
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Re: Capacitors under dash (vetzs)
vetzs-
the capacitor you are describing (1966) is for the stop lamp switch capacitor. It is secured to the brace and plugs into the switch and the stop lamp wire lead and is designed to eliminate amp meter bounce and radio click when you step on the brake. Other under dash capacitors include the directional signal capacitor and one other which is for the parking brake light.
Hope that helps
Peter
the capacitor you are describing (1966) is for the stop lamp switch capacitor. It is secured to the brace and plugs into the switch and the stop lamp wire lead and is designed to eliminate amp meter bounce and radio click when you step on the brake. Other under dash capacitors include the directional signal capacitor and one other which is for the parking brake light.
Hope that helps
Peter
Melting Slicks
Joined: Apr 2002
Posts: 2,620
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From: 20 forward gears to shift through in MD
Re: Capacitors under dash (Milehigh66)
Yes, the capacitors are for noise suppression. Most (if not all) of them connect into an existing harness connector (like the amp-meter) using the little tab that is stuck into the connector before installing on the instrument posts. The AIM does not describe most of the suppression caps.
